1.)Remove third party potential threating apps just to be sure.
2.)Always make sure the phones up to date on the latest firmware.
3.)The next step is to go to the dialer ##72786# that forces the phone to reactivate.
4.)Next step go back to the dialer and dial ##3282#
4.2)Go to edit
4.3)Then type 000000
4.4)Then go to LTE
4.5)Then go to band 41 that is enabled and uncheck to disable.
4.6)Then go to band 25 that is enabled and uncheck to disable.
4.7)Then go to band 41PCII that is enabled and uncheck to disable.
5.)Reboot the phone don't expect full LTE service yet there are still some more steps...
6.)Go to settings find VOLTE and enable. Search VOLTE in the search bar to enable it.Swipe right on the button to turn it on. New icon will pop up at the top of the phone if done correctly.
7.)Then go back to the dialer and type ##3282#
7.2)Go to edit
7.3)Then type 000000 again
7.4)Then LTE again
7.5)Then go to band priority
7.6 & 7.7)Set both bands 41 and 25 to the bottom of the list by typing the number 17 on band 25 and 18 on band 41 and that pushes them down the list. Make sure band 26 is set to 1 on the priority list.
7.8)Then turn off your phone and turn it back on.
This fix is broken from a network reset or ##72786# update or Samsung software update. So reapply the fix after each update or network reset
Howeitworks said:
1.)Remove third party potential threating apps just to be sure.
2.)Always make sure the phones up to date on the latest firmware.
3.)The next step is to go to the dialer ##72786# that forces the phone to reactivate.
4.)Next step go back to the dialer and dial ##3282#
4.2)Go to edit
4.3)Then type 000000
4.4)Then go to LTE
4.5)Then go to band 41 that is enabled and uncheck to disable.
4.6)Then go to band 25 that is enabled and uncheck to disable.
4.7)Then go to band 41PCII that is enabled and uncheck to disable.
5.)Reboot the phone don't expect full LTE service yet there are still some more steps...
6.)Go to settings find VOLTE and enable. Search VOLTE in the search bar to enable it.Swipe right on the button to turn it on. New icon will pop up at the top of the phone if done correctly.
7.)Then go back to the dialer and type ##3282#
7.2)Go to edit
7.3)Then type 000000 again
7.4)Then LTE again
7.5)Then go to band priority
7.6 & 7.7)Set both bands 41 and 25 to the bottom of the list by typing the number 17 on band 25 and 18 on band 41 and that pushes them down the list. Make sure band 26 is set to 1 on the priority list.
7.8)Then turn off your phone and turn it back on.
This fix is broken from a network reset or ##72786# update or Samsung software update. So reapply the fix after each update or network reset
Click to expand...
Click to collapse
Why are you telling people to put b26 as highest priority. And put b41 as the lowest? B26 is 5×5 for the lowest spectrum and up to 10x10 or maybe 15×15.
While b25 is lowest 10×10 and up.
B41 is maybe TDD 20mhz/40mhz/60mhz up to 160mhz
B41 is really fast.
Its better to let ##scrtn# do the reprogramming and activate the sprint service and leave everything the way it was.
Changing priority or disabling the lte bands do not help the signal fix.
Only power users would put the b41 as the highest priority to have the highest speed. I guess you dont like sprints b41?
sunmybun said:
Why are you telling people to put b26 as highest priority. And put b41 as the lowest? B26 is 5×5 for the lowest spectrum and up to 10x10 or maybe 15×15.
While b25 is lowest 10×10 and up.
B41 is maybe TDD 20mhz/40mhz/60mhz up to 160mhz
B41 is really fast.
Its better to let ##scrtn# do the reprogramming and activate the sprint service and leave everything the way it was.
Changing priority or disabling the lte bands do not help the signal fix.
Only power users would put the b41 as the highest priority to have the highest speed. I guess you dont like sprints b41?
Click to expand...
Click to collapse
Yeah i get 250mbs on 41 in my hood
sunmybun said:
Why are you telling people to put b26 as highest priority. And put b41 as the lowest? B26 is 5×5 for the lowest spectrum and up to 10x10 or maybe 15×15.
While b25 is lowest 10×10 and up.
B41 is maybe TDD 20mhz/40mhz/60mhz up to 160mhz
B41 is really fast.
Its better to let ##scrtn# do the reprogramming and activate the sprint service and leave everything the way it was.
Changing priority or disabling the lte bands do not help the signal fix.
Only power users would put the b41 as the highest priority to have the highest speed. I guess you dont like sprints b41?
Click to expand...
Click to collapse
There are some areas to where b41 and b25 does not work well in rural areas like in WV for example, if people have roaming issues this fix does work. This helps with battery life. That is why I said (IF NEEDED).
Howeitworks said:
There are some areas to where b41 and b25 does not work well in rural areas like in WV for example, if people have roaming issues this fix does work. This helps with battery life. That is why I said (IF NEEDED).
Click to expand...
Click to collapse
You didnt state this is for rural areas anywhere. It seemed like you meant for all sprint users. Because people like me that live in big cities can use it the wrong way.
Also the sprint phones already have #1 25 #2 26 #3 41 priority as default.
B25 is nationwide and is faster than b26 anyway. The phone and the towers will load balance the service accordingly. So its best to leave it as is.
I think where sprint doesnt have good coverage, im sure most people wont be with sprint at that area. There are smaller carriers that have better coverage for some areas.
For roaming, theres a limit of how much you can roam and it differs by each plan and to whom you roam to.
For me it is 300MB for all carriers except tmobile.
Ive been to rural areas in my state. If i dont have any sprint bands to connect to or have very weak signal, I roam to a diff carrier like US Cellular by itself. You may think itll save battery to change priorities but its the same because it will always want to connect to sprint first.
I just dont want sprint users to take this and lose some of the great benefits of B41.
And also there are some areas that do B25 + B25 carrier aggregation.
This was an issue with the S10 and S10+...I have permanent data loss on.my S10+..little to poor reception away from my wifi...got run around trying to replace it..but got greate deal on trade in for note 10 +...v
I hope I do not have the same issue like this..or will return the phone and go with something else..dare I say even an iphone if I have to
Howeitworks said:
1.)Remove third party potential threating apps just to be sure.
2.)Always make sure the phones up to date on the latest firmware.
3.)The next step is to go to the dialer ##72786# that forces the phone to reactivate
Click to expand...
Click to collapse
Stop here on my SM-N976N, dialing ##72786# nothing happens.
Maybe someone could help me: I'm on Vodafone, no more VoLTE calls since upgraded from Note 9 no brand to actual model.
VoLTE is active, no doubt.
Tried with another SIM from other carrier: VoLTE logo appeared and eveything works fine.
Any suggest?
vysus said:
Stop here on my SM-N976N, dialing ##72786# nothing happens.
Maybe someone could help me: I'm on Vodafone, no more VoLTE calls since upgraded from Note 9 no brand to actual model.
VoLTE is active, no doubt.
Tried with another SIM from other carrier: VoLTE logo appeared and eveything works fine.
Any suggest?
Click to expand...
Click to collapse
lol.. this thread is clearly for sprint users or ppl using their device on sprint with sprint csc..
if the dialer code doesnt work for u then its not allowed by ur carrier/csc.. that or u can enable it after rooting or by changing ur csc
Yep, I can read since I was a child, but this is a forum so it's normal to ask.
Thanx for your answer, the SM-N978N must be NOT bought, definitely.
vysus said:
Yep, I can read since I was a child, but this is a forum so it's normal to ask.
Thanx for your answer, the SM-N978N must be NOT bought, definitely.
Click to expand...
Click to collapse
i am glad u can read lol.. its ok tho, ppl try to hijack threads since the beginning of the internet lol
vysus said:
Stop here on my SM-N976N, dialing ##72786# nothing happens.
Maybe someone could help me: I'm on Vodafone, no more VoLTE calls since upgraded from Note 9 no brand to actual model.
VoLTE is active, no doubt.
Tried with another SIM from other carrier: VoLTE logo appeared and eveything works fine.
Any suggest?
Click to expand...
Click to collapse
Well let me tell ya my situation that I'm dealing with maybe we can help each other! Okay so I also have a note 9 N960U that I also can not get VOLTE, the issue is that Sprint never integrated a APK that gives me the VOLTE feature in the Pie Update, but in Oreo they DID. So I wonder if its because of the Android Update and the Vodafone doesnt support VOLTE on the current Android Build that you are on. Its like when Microsoft took DVD Maker of Windows 7 out when you updated to Windows 8 8,1 or 10. I'm trying to get more information and if I come across some more information on XDA to help your cause I will let you know.
I am on sprint. Followed this to the T and got the screenshot of the slow speeds. Followed steps 1-3 to reset the data and got the fast speeds. Not sure about your priority but I guess it can't hurt to try and see if it works for you. You can always reset if it is slow.
Sent from my SM-N975U1 using Tapatalk
View attachment 4881121View attachment 4881125
i think OP should change the threads' titles reared towards rural people. people take your advice and use it for other ways.
you are spreading wrong info. do you know that you can roam on tmobile lte? it is better than having no lte or just ehrpd.
stop spreading nonsense
Related
I have read that you can change your APN settings to turn off LTE. However, I found another way (with the help of carefreelife). Use at your own risk! I am not responsible for any harm you may do though it seems fairly safe to me!:
UPDATE: THERE IS NOW AN EASIER METHOD TO DO THIS WITHOUT PULLING THE SIM AND REBOOTING (check out post #47 below or use this link)
http://forum.xda-developers.com/showpost.php?p=37310325&postcount=47
[OLD METHOD]1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.[/OLD METHOD]
I was attempting to follow this procedure for the S2:
{Trick} Get Around "RAT SELECTION RESTRICTED" on i897 modems! - xda-developers
...but I couldn't get the SIM out easily so I left it in...and followed the steps. It wouldn't recognize that the SIM had been reinserted so I gave up and rebooted...and it worked! No need to mess with airplane mode or anything just follow the steps above.
I was then able to follow the same procedure and turn back on the default setting which was "1) Automatic". After a reboot I am again connected to LTE.
Reason I'm using this: I'm testing a major battery drain issue that might be related to LTE/HSPA+ switching.
Reason you might want this: If you have poor LTE signal or even poor HSPA+ signal and want your phone to stop trying to connect to that network, this will stop it.
UPDATE:
A little bit of bad news here:
I have been on "WCDMA All" (HSPA+ aka 3G4/G, with LTE disabled) for 10 days now with ZERO problems whatsoever.
However, I am pretty sure that whichever you choose, if not "Automatic", you will be locked to ONLY that band:
i.e. if you choose "WCDMA All" you will not only be disabling LTE, but also 2G (EDGE) as well. You may not need it (and if so, it will not effect you) - but if your phone loses the HSPA+ signal, it will not fall back to 2G unless you change the setting.
I tested this theory by setting my phone to "LTE all" and trying to call myself from another phone. The call went straight to my voicemail. LTE is data only (for now) and when you receive a call, it switches to HSPA+. Unfortunately, since I had set my phone to "LTE All", it stayed on LTE and could not receive the call.
This may not be a deal-breaker but it's something to be aware of, for sure. I only tested "LTE All" because it was easy to do so, but I am assuming the same applies for the other settings...only "Automatic" would seem to pick the best available network.
Click to expand...
Click to collapse
Edited OP and changed thread title. Please help me test this. Thanks!
Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.
fortesquieu said:
Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.
Click to expand...
Click to collapse
Yes, it is disabled on AT&T versions. If you try the method I listed above without removing the SIM card, it will be blocked as well.
AT&T does not want us to have any control over which network we connect to. It's been speculated that they want us forced on to LTE to take strain off the HSPA network. Honestly I think that's fine - though I prefer to have a choice - except that I suspect LTE switching is causing my battery drain issue and I need to turn it off in order to test that theory.
http://forum.xda-developers.com/showthread.php?t=1811182
carefreelife at Android Central forums showed me that WCDMA All is the proper setting to disable LTE and stay on HSPA. It's working for me and seems to be perfect!
Curious,why dont u want LTE?
Sent from my SAMSUNG-SGH-I747 using xda premium
bbgt2 said:
Curious,why dont u want LTE?
Click to expand...
Click to collapse
Testing to see if it's causing the battery drain issue described in this thread:
http://forum.xda-developers.com/showthread.php?t=1811182
Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Sent from my SAMSUNG-SGH-I747 using xda premium
bbgt2 said:
Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Click to expand...
Click to collapse
My battery life is great too - there just seems to be a bug that causes it to suddenly become terrible and drain fast until it's rebooted. This is just a method I'm using to test it.
It's possible that disabling LTE can increase battery life but I'm not sure there's any evidence that LTE uses more battery than HSPA+. On older phones the LTE was not integrated into the SoC and thus was a power hog...but it's integrated on the S3.
For users who are on fringe areas and receive poor LTE or HSPA+ coverage...the phone will use extra battery trying to connect and stay connected to those...even if it's [mostly] unsuccessful. Using this method would be a good idea for people who would rather just stay on the bands with strong signal and stop wasting battery trying to get on LTE or HSPA+ fruitlessly.
Thanks a lot for this I've been wanting to switch to 2g only THANKS
Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
Sent from my GSIII
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Sent from my GSIII
I can't get into the screen.. Always get some error after entering *#2263#
DudeWatsThat said:
Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Click to expand...
Click to collapse
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
X10D3 said:
I can't get into the screen.. Always get some error after entering *#2263#
Click to expand...
Click to collapse
What's the error you get? Are you using an AT&T Galaxy S3?
jeffreii said:
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
What's the error you get? Are you using an AT&T Galaxy S3?
Click to expand...
Click to collapse
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Sent from my GSIII
Does nothing. When I hit send it just says invalid mmi code.
Sent from my SAMSUNG-SGH-I747 using xda premium
DudeWatsThat said:
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Click to expand...
Click to collapse
I can't say anything for sure until I get about 1 week of uptime with no plummet. It's been stable (battery and signal) since I enabled it, though.
X10D3 said:
Does nothing. When I hit send it just says invalid mmi code.
Click to expand...
Click to collapse
You shouldn't even have to hit send...as soon as you hit the second # it should go straight to the menu.
*#2263#
I can't guarantee this works with any modifications to stock as I have only done it on my unrooted stock AT&T S3.
CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?
Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.
X10D3 said:
CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?
Click to expand...
Click to collapse
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
ComradeNF said:
Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.
Click to expand...
Click to collapse
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!
jeffreii said:
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!
Click to expand...
Click to collapse
I'd also love to know if 2G works, but I can't while in North California. There isn't a single place within a 20 mile radius of where I live that doesn't have full LTE and HSPA+ coverage since so many people live here. I go to college in a fairly rural area in California though so in late September I'll be able to confirm if we can get 2G with the WCDMA method.
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
could you explain what "RAT restriction" is and what removing it will provide?
kirkgbr said:
could you explain what "RAT restriction" is and what removing it will provide?
Click to expand...
Click to collapse
Here is a thread that talks about RAT restrictions. It appears to have to do with restricting access to certain bands, but I am swimming in waters that are deeper than my skills will allow.
http://forum.xda-developers.com/showthread.php?t=1189241
norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Units->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
I gonna do a run for this later today to see if it will actually work for allowing band selection and sticking.
It seemed to work for me, but it's only been a couple of minutes so far after turning off LTE. BTW, the first menu is "UMTS", not "Units".
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Any suggestions on how to make these changes permanent without rooting?
Since there is now a known code to lift restrictions until reboot, I hope some dev will figure out a way on stock based roms (both stock and mods), as well as AOSP based, to make it permanent. I have tried AOKP and CM10 in hopes the LTE and 2G toggles would work but no dice with AT&T SGS3.
Anonymously_Unknown said:
Any suggestions on how to make these changes permanent without rooting?
Click to expand...
Click to collapse
Given the issue at hand, it is most likely a deeply embedded setting that will not be available to standard user base (non rooted), henceforth root access or even on a programming level will be needed to make the necessary changes. How the changes will be made available, if it is done, will depend on what was needed to make it permanent. This raises the question of where is this restriction coded into the AT&T SGS3. Is it firmware, ROM, SIM related, Radio? Seriously doubt it is hardware itself since there are ways to get around the restriction.
larryka said:
It seemed to work for me, but it's only been a couple of minutes so far after turning off LTE. BTW, the first menu is "UMTS", not "Units".
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Yes you are corect. I make correction in OP.
Testing RAT unlock now.
norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
Testing this method now. So far I am running on 2G. I will give it at least a couple of hours and will update this post accordingly.
Update: I was messing around and decided to save this USSD (the official name of these secret dialer codes) in my contacts. From dialer you can start pressing *#1 and when it appears just press it. This gives quick access should you need to change radios often. I also want to add that instead of going back into *#2263# you can also select the band from *#197328640#. If you want to change it immediately, then once you get the confirmation "Now RAT Free Supporting" press the menu key on the left of the Home button. Select back and repeat again to go back again. Then, instead of choosing Network Lock choose Network Control-->Band Selection. This takes you to the same menu that *#2263# does and you can select accordingly.
@norbarb...perhaps you can update your OP to reflect that you can stay within the original selection instead of *#2263# and just go back twice to access the band selection. It is just one more way of doing things.
I also did the test of rebooting my phone. As mentioned by norbarb, if you have rebooted the RAT restriction is back in place. Regardless of which option you take to the band selection it will show RAT restriction until you follow the OPs steps again to remove restriction. Have not found a way for permanent removal of the restriction yet (I am optimistic and really want this permanent so I will look very hard to find a solution.). Also when I rebooted I had GSM 2G only selected prior and I kept the option upon reboot so only the RAT restriction is reset...not the network band settings.
Update 2: After 4 hours I am still on 2G Edge. I am in a very good LTE location so this is definitely the most promising outlook. I have found that I despite my love for the look of AOSP roms, the inability to turn on 2G at all will keep me with TW for now. Thankfully I do not mind the look of TW and with root, I can kill the Bloatware. I will look at all of the options in the *#197328640# menus and see if there is anything that may can be applied for permanent access. I also wonder if the secret to overriding the lack of options for network choices in *#*#4636#*#* will be here as well as this would more preferable to shut down LTE only.
aybarrap1 said:
I also did the test of rebooting my phone. As mentioned by norbarb, if you have rebooted the RAT restriction is back in place. Regardless of which option you take to the band selection it will show RAT restriction until you follow the OPs steps again to remove restriction. Have not found a way for permanent removal of the restriction yet (I am optimistic and really want this permanent so I will look very hard to find a solution.). Also when I rebooted I had GSM 2G only selected prior and I kept the option upon reboot so only the RAT restriction is reset...not the network band settings.
Click to expand...
Click to collapse
Same here.
Sent from my SAMSUNG-SGH-I747 using xda premium
Isn't the problem with doing this, say if you disable LTE and only select HSPA, it wont go to any 2G networks if you are out of coverage. Because its not on 'automatic', its on HSPA. So if you are out of a service zone of HSPA, then you dont have anything to fall back to.
If only there was a way to disable LTE, and use the other networks 'automatically'.
geoldr said:
Isn't the problem with doing this, say if you disable LTE and only select HSPA, it wont go to any 2G networks if you are out of coverage. Because its not on 'automatic', its on HSPA. So if you are out of a service zone of HSPA, then you dont have anything to fall back to.
If only there was a way to disable LTE, and use the other networks 'automatically'.
Click to expand...
Click to collapse
That is the problem. However, AT&T in their infinite focus on trying to force users to their networks of choice has purposely had the ability to do network selections disabled. Under normal circumstances in android devices the option of network selection is under settings and mobile networks option. This is removed I am sure at AT&T's request. The other way to access this is to use USSD *#*#4636#*#* in dialer and select "Device Information" which will give you an option to choose a network preference. While the USSD works the option to select network preference does not work.
At least with the option to unlock RAT and using USSD *#2263#, it gives some sort of ability to choose a network. For me this is perfect since I want the 2G only due to poor 3G and LTE signals at work. However you are right that it is not convenient if you just want LTE off. For the moment there is no known way to obtain this option on the AT&T SGS3.
aybarrap1 said:
That is the problem. However, AT&T in their infinite focus on trying to force users to their networks of choice has purposely had the ability to do network selections disabled. Under normal circumstances in android devices the option of network selection is under settings and mobile networks option. This is removed I am sure at AT&T's request. The other way to access this is to use USSD *#*#4636#*#* in dialer and select "Device Information" which will give you an option to choose a network preference. While the USSD works the option to select network preference does not work.
At least with the option to unlock RAT and using USSD *#2263#, it gives some sort of ability to choose a network. For me this is perfect since I want the 2G only due to poor 3G and LTE signals at work. However you are right that it is not convenient if you just want LTE off. For the moment there is no known way to obtain this option on the AT&T SGS3.
Click to expand...
Click to collapse
Yep. I also think it's something to do with AT&T network setup. Because on AOSP ROM's we can't toggle LTE either. But the same ROM on a Canadian model phone will work just fine.
Even though the iphone has an LTE toggle. At least I read somewhere that it does.
geoldr said:
Yep. I also think it's something to do with AT&T network setup. Because on AOSP ROM's we can't toggle LTE either. But the same ROM on a Canadian model phone will work just fine.
Even though the iphone has an LTE toggle. At least I read somewhere that it does.
Click to expand...
Click to collapse
It has nothing to do with the network setup...it is the carrier forcing restrictions on their customers. I have had three other android phones (including my wifes) in the last three years. All of them were restricted from choosing the network from stock rom. The moment I uploaded a ROM such as CM or other AOSP Roms I was magically able to do a network select. I even had to Windows phones (6.1 and 6.5) and both of them were stripped but with some registry edits I was able to add the option back to select between 3G/2G and 2g only. It is AT&T's way and they are notorious for it.
On a side note, I would not be surprised if AT&T is the primary corporate network that pushed for this network SIM lock ruling by the Congressional Librarian. Of all the carriers they have the most to lose.
If you want to select multiple bands and still turn lte off..
http://forum.xda-developers.com/showthread.php?p=37334232
Galaxy S III I747
fmllc said:
If you want to select multiple bands and still turn lte off..
http://forum.xda-developers.com/showthread.php?p=37334232
Galaxy S III I747
Click to expand...
Click to collapse
I have been testing this for the last 4 hours and it does seem to work. Went to 2g only area and it switched perfectly to 2G and reverted back to 3g when I left the area. However I am not able to do GSM ONLY (2G only) using this method. You will have to follow the instructions on this thread for that.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click back button and try setting radio by pressing *#2263#.
norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
How to set radio by pressing *#2263#?
And what is RTA will lock back after restarting?
So what is the benefit of the ability to change bands?
OKAstro said:
So what is the benefit of the ability to change bands?
Click to expand...
Click to collapse
It could result in battery savings and reduced dropped calls. For instance, I am often in and out of areas with little to no bandwidths under LTE. At default, my phone would always looking for an LTE signal which means my battery takes a pounding. By having my phone only look for 2G/3G, I do not take as large of a battery hit. Besides that, LTE does consume more power. For the most part I leave my phone with LTE off because the data speed is not crucial for me. At home I have a really fast WiFi network so it is better to be on it anyway while at home.
aybarrap1 said:
It could result in battery savings and reduced dropped calls. For instance, I am often in and out of areas with little to no bandwidths under LTE. At default, my phone would always looking for an LTE signal which means my battery takes a pounding. By having my phone only look for 2G/3G, I do not take as large of a battery hit. Besides that, LTE does consume more power. For the most part I leave my phone with LTE off because the data speed is not crucial for me. At home I have a really fast WiFi network so it is better to be on it anyway while at home.
Click to expand...
Click to collapse
OK Thanks. But under Settings/More Networks/Mobile Networks/Network Mode there are 13 "band" combination choices. Do those choices not provide what you''re looking for (i.e.2G/3G)?
I've never changed mine, so I'm curious
So I have always had Lte on my Galaxy but now under mobile network type it says I have UMTS:3. Can anyone tell me what that even means. Also my moms house as well as my dads house both have LTE coverage, yet I can longer get LTE. When I put data on my network changes to HSpAP:15 which I also dont know what means, and yet it says 4G on the status bar. Has anyone ever had any of these problems or could enlighten me on what all of these mean?
Need a little more info, please. What ROM are you using, any mods made to your phone, stuff like that.
Yea, need more info.
I'm going to leave the book here for someone else to write, but when not on LTE, it's not unusual for your phone to read UTMS3 or HPSAP15 and for your phone to read as 4G when on HPSAP15. It's technically still 3G, more like 3G and 1/2, but ATT choose to call it 4G. You will usually see this on ATT stock ROMS and some custom ROMS, but will find it correctly reading as 3G on other custom ROMS.
Sorry for having little info there. But Im on stock rom with stock kernel. Im rooted and have done a few mods to it but thats about it. Its just weird because on ATT LTE map I am clearly surrounded by LTE coverage but am not getting it. Im going to try and put my SIM card in my sisters phone and see if I get LTE on that.
Pikezer1337 said:
Sorry for having little info there. But Im on stock rom with stock kernel. Im rooted and have done a few mods to it but thats about it. Its just weird because on ATT LTE map I am clearly surrounded by LTE coverage but am not getting it. Im going to try and put my SIM card in my sisters phone and see if I get LTE on that.
Click to expand...
Click to collapse
Is that going to be the first time you've removed the SIM card?
Search "how to bypass RAT restriction"on the s3 and bypass it. Then use dialer code *#2263#. Select lte, lte all. This could get your lte back. You could also do the same got gsm and wcdma while your in there. After you finish your selections, reboot.
mrhaley30705 said:
Search "how to bypass RAT restriction"on the s3 and bypass it. Then use dialer code *#2263#. Select lte, lte all. This could get your lte back. You could also do the same got gsm and wcdma while your in there. After you finish your selections, reboot.
Click to expand...
Click to collapse
That's the direction I was going when I asked about the SIM card. Removing the SIM can temporarily remove the RAT restrictions, which can allow the settings to be changed.
The RAT restrictions can be removed first by dialing *#197328640#, then hitting the numbers 11865.
Then you can dial the user code *#2263# then hit 1 for Automatic.
Please do not select lte. You cannot make calls on AT&T yet on LTE. The phone always switches back to 4G or whatever when there is a call, but never LTE). If you select LTE, then it will always be on LTE, and now you will have LTE and no phone calls. You need to select Automatic, so that the phone can dictate to you and call all the shots the way AT&T intended.
I beg to partially differ. You should select all lte, to make sure those bands are active. If they aren't, automatic won't use them.
mrhaley30705 said:
I beg to partially differ. You should select all lte, to make sure those bands are active. If they aren't, automatic won't use them.
Click to expand...
Click to collapse
I'm not always right, but I think I am here. Try it on your phone. Then try making or receiving a call.
Not on Tw ROM atm. But i lost 4g data last week. Had to reselect All Lte. Also reselected All GSM and All WCDMA. Then selected Automatic. After that, everything worked right again. Lte was always lit up, until i made/received a phone call. After call, it went back up to lte.
mrhaley30705 said:
Not on Tw ROM atm. But i lost 4g data last week. Had to reselect All Lte. Also reselected All GSM and All WCDMA. Then selected Automatic. After that, everything worked right again. Lte was always lit up, until i made/received a phone call. After call, it went back up to lte.
Click to expand...
Click to collapse
I'm on touchwiz. I can make calls on everything but LTE. When I set my phone, GSM always stays on Edge, WCDMA always stays on 4G (what ATT calls it) and LTE always stays on 4G LTE. They never change unless its on Automatic.
Your directions.
shortydoggg said:
That's the direction I was going when I asked about the SIM card. Removing the SIM can temporarily remove the RAT restrictions, which can allow the settings to be changed.
The RAT restrictions can be removed first by dialing *#197328640#, then hitting the numbers 11865.
Then you can dial the user code *#2263# then hit 1 for Automatic.
Please do not select lte. You cannot make calls on AT&T yet on LTE. The phone always switches back to 4G or whatever when there is a call, but never LTE). If you select LTE, then it will always be on LTE, and now you will have LTE and no phone calls. You need to select Automatic, so that the phone can dictate to you and call all the shots the way AT&T intended.
Click to expand...
Click to collapse
Thanks for the directions shortydoggg, they were easy to follow. Unfortunately, I still only have Edge,.. I lost 4g after flashing 4.2.. Do you have any other suggestions?
4life2is0good said:
Thanks for the directions shortydoggg, they were easy to follow. Unfortunately, I still only have Edge,.. I lost 4g after flashing 4.2.. Do you have any other suggestions?
Click to expand...
Click to collapse
Check your imei in settings. If it's a zero, you'll need to inject it back in; there's a guide for that.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
I refer to my original instructions, with a little more detail. After bypassing RAT restrictions:
Dialer code *#2263#
Select WCDMA
Select Wcdma all
Back
Select LTE
Select LTE all
Back
Select Automatic
Back key on the phone
Reboot
You must be on a Touchwiz ROM and use the stock phone dialer.
mrhaley30705 said:
I refer to my original instructions, with a little more detail. After bypassing RAT restrictions:
Dialer code *#2263#
Select WCDMA
Select Wcdma all
Back
Select LTE
Select LTE all
Back
Select Automatic
Back key on the phone
Reboot
You must be on a Touchwiz ROM and use the stock phone dialer.
Click to expand...
Click to collapse
I have the same problem since i flashed a custom rom last week and i lost my imei too, i just inject it again but now my data and signal are always down i also fallowed ur instruction but the problem continuous, this phone is driving me crazy :silly:
For those of you have LTE connection issues when in the past LTE worked fine I want to share what I did and it worked. I am not in a Spark area and after getting the update from Sprint I lost LTE connection at work. I previously had LTE a 100% of the time at work. I noticed that a lot of folks on the Sprint forums were having the very same issue. After researching with Sprint to solve my problem (They were no help at all), and the combination of things I read here on xda (I can't find the forum So I take not credit for this) I want to share the solution that worked for me.
1. Call Sprint and obtain your MSL code
2. In the phone dialer enter ##3282#
3. press LTE and enter edit, Enter MSL code
4. Click on LTE, then bands 26 and 41 and disable both of them
5. Phone should reboot and LTE should work as it did before
If someone would be so kind if I can't find the threads on here I would like to link them and give credit were it is due.
I just wanted to share what worked for me.
HeckNoTechnO said:
For those of you have LTE connection issues when in the past LTE worked fine I want to share what I did and it worked. I am not in a Spark area and after getting the update from Sprint I lost LTE connection at work. I previously had LTE a 100% of the time at work. I noticed that a lot of folks on the Sprint forums were having the very same issue. After researching with Sprint to solve my problem (They were no help at all), and the combination of things I read here on xda (I can't find the forum So I take not credit for this) I want to share the solution that worked for me.
1. Call Sprint and obtain your MSL code
2. In the phone dialer enter ##3282#
3. press LTE and enter edit, Enter MSL code
4. Click on LTE, then bands 26 and 41 and disable both of them
5. Phone should reboot and LTE should work as it did before
If someone would be so kind if I can't find the threads on here I would like to link them and give credit were it is due.
I just wanted to share what worked for me.
Click to expand...
Click to collapse
not working on zvc Rom help me to fix these settings. i want to change to WCDMA
Reardon said:
not working on zvc Rom help me to fix these settings. i want to change to WCDMA
Click to expand...
Click to collapse
I am on a stock rooted zvc rom. Try updating prl and profile.
Sent from my LG-LS980 using Tapatalk
HeckNoTechnO said:
I am on a stock rooted zvc rom. Try updating prl and profile.
Sent from my LG-LS980 using Tapatalk
Click to expand...
Click to collapse
there is no option provided by our networks of my prl and profile in my Country Pakistan
Reardon said:
there is no option provided by our networks of my prl and profile in my Country Pakistan
Click to expand...
Click to collapse
Then this mod doesn't really pertain to you. It just turns off those connections for Sprints Spark system.
Sent from my iPad using Tapatalk
KB112 said:
Then this mod doesn't really pertain to you. It just turns off those connections for Sprints Spark system.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
then can u please tell me which mode i should install? because i am on pakistan network and here is only 3g. i want to sel that up?
Reardon said:
then can u please tell me which mode i should install? because i am on pakistan network and here is only 3g. i want to sel that up?
Click to expand...
Click to collapse
Sorry partner I am in the USA can't help you.
This worked a charm! Thanks!
HeckNoTechnO said:
For those of you have LTE connection issues when in the past LTE worked fine I want to share what I did and it worked. I am not in a Spark area and after getting the update from Sprint I lost LTE connection at work. I previously had LTE a 100% of the time at work. I noticed that a lot of folks on the Sprint forums were having the very same issue. After researching with Sprint to solve my problem (They were no help at all), and the combination of things I read here on xda (I can't find the forum So I take not credit for this) I want to share the solution that worked for me.
1. Call Sprint and obtain your MSL code
2. In the phone dialer enter ##3282#
3. press LTE and enter edit, Enter MSL code
4. Click on LTE, then bands 26 and 41 and disable both of them
5. Phone should reboot and LTE should work as it did before
If someone would be so kind if I can't find the threads on here I would like to link them and give credit were it is due.
I just wanted to share what worked for me.
Click to expand...
Click to collapse
Just a note if you get a profile or prl update that you did not initiate you will have to turn off bands 26 and 41 again following the steps above.
Disabling bands 26 (800mhz) and 41 (2500mhz) seems counterproductive to the gains that Sprint Spark is supposed to bring. I'm guessing it's probably region specific to those having LTE issues where disabling these bands "fixes" whatever issues you're having (maybe Spark is not fully deployed, etc). I'm not having these LTE issues by the way, and LTE coverage here in NYC has improved to the point that i even get LTE in some underground subway stations.
LordLugard said:
Disabling bands 26 (800mhz) and 41 (2500mhz) seems counterproductive to the gains that Sprint Spark is supposed to bring. I'm guessing it's probably region specific to those having LTE issues where disabling these bands "fixes" whatever issues you're having (maybe Spark is not fully deployed, etc). I'm not having these LTE issues by the way, and LTE coverage here in NYC has improved to the point that i even get LTE in some underground subway stations.
Click to expand...
Click to collapse
That's the exact problem, the roll out is far from nation wide. So if you are in a non spark area, the phone constantly seems to search for it. My battery life significantly decreased on ZVC. Once I shut off those bands, my LTE was much more stable and battery life improved greatly.
Sent from my iPad using Tapatalk
I wanted to let everyone know that Wi-Fi calling works on the Galaxy S9 unlocked lock version with T-Mobile
thanks but how do you know... i have unlocked s9 that i got from samsung but i can not tell if wifi calling is working. i am with t-mobile.
bobwal70 said:
thanks but how do you know... i have unlocked s9 that i got from samsung but i can not tell if wifi calling is working. i am with t-mobile.
Click to expand...
Click to collapse
Because I turned it on after I put in m t mobile sim card and used it.
How do I turn it on/off. I havent found it yet, but it is fixed to my notifications bar, and I don't want it there.
Thank you for confirming. Are you able to confirm a couple of other things?
VoLTE?
RCS Messaging? (I think there should be an advanced setting to enable this).
Band 71 available?
I am trying to figure out if I buy and unlocked phone from Samsung, and flash the TMO ROM, or buy the carrier version and clean up the bloatware (I keep my phones so resale value doesn't matter so much for me)
aqj123 said:
Thank you for confirming. Are you able to confirm a couple of other things?
VoLTE?
RCS Messaging? (I think there should be an advanced setting to enable this).
Band 71 available?
I am trying to figure out if I buy and unlocked phone from Samsung, and flash the TMO ROM, or buy the carrier version and clean up the bloatware (I keep my phones so resale value doesn't matter so much for me)
Click to expand...
Click to collapse
I don't know about Volte,The phone does not let me select LTE alone. I can not tell RCS messaging don't know anything about that. Ban 71 is supported
tcabrino said:
How do I turn it on/off. I havent found it yet, but it is fixed to my notifications bar, and I don't want it there.
Click to expand...
Click to collapse
I have found the only way to turn it on or off is through the notification bar an then it opens the window to change wifi call settings, I am still looking.
This is what I also found: go into the dialer, top right hand corner are three buttons touch that go to settings, and you will see wifi calling listed and you can turn it on and off in there, too.
uzupan said:
I have found the only way to turn it on or off is through the notification bar an then it opens the window to change wifi call settings, I am still looking.
This is what I also found: go into the dialer, top right hand corner are three buttons touch that go to settings, and you will see wifi calling listed and you can turn it on and off in there, too.
Click to expand...
Click to collapse
Thanks! Was just trying to find something like this as now that I turned it off so it's not on the notification bar, I still know how to turn it on.
Is there any chance you could post a screen snaps of your unlocked S9 with T-Mo SIM on the *#2263# band support screen? On the T-Mo phone at least they turn down LTE Band 28 and UMTS Band 8 whenever you pop in a T-Mo SIM but open it up when you insert another carrier SIM. Since I can flash the unlocked firmware on my T-Mo device, this would be a great work around if those two bands persist!!
Apparently without those bands, roaming sucks in AUS and NZ, and without B8 UMTS parts of Europe (esp. South France) loses coverage.
Thanks in advance, as well as for the Intel! I do know you lose native digits support and video calling from the dialer, but those features don't matter to me as long as WiFi calling works which you proved.
Attaching my band list, as you can see no B28 or B8 UMTS
Regards,
PaulView attachment 4451000
Sent from my SM-G965U using Tapatalk
hofopds said:
Is there any chance you could post a screen snaps of your unlocked S9 with T-Mo SIM on the *#2263# band support screen? On the T-Mo phone at least they turn down LTE Band 28 and UMTS Band 8 whenever you pop in a T-Mo SIM but open it up when you insert another carrier SIM. Since I can flash the unlocked firmware on my T-Mo device, this would be a great work around if those two bands persist!!
Apparently without those bands, roaming sucks in AUS and NZ, and without B8 UMTS parts of Europe (esp. South France) loses coverage.
Thanks in advance, as well as for the Intel! I do know you lose native digits support and video calling from the dialer, but those features don't matter to me as long as WiFi calling works which you proved.
Attaching my band list, as you can see no B28 or B8 UMTS
Regards,
PaulView attachment 4451000
Sent from my SM-G965U using Tapatalk
Click to expand...
Click to collapse
Attached is the screen shot of my hidden menu on my unlocked Galaxy s9 with the TMobile sim card inserted, hope this helps.
uzupan said:
Attached is the screen shot of my hidden menu on my unlocked Galaxy s9 with the TMobile sim card inserted, hope this helps.
Click to expand...
Click to collapse
That's strange--the unlocked model is showing one less band than T-Mobile, LTE 46 which is for LTE LAA on the unlicensed 5GHz band. Thank you for the snap, much appreciated!
Sent from my SM-G965U using Tapatalk
Are you able to enable "Cellular calling preferred" in the wifi calling options? After enabling this option while on wifi instead of "Wifi Calling Preferred" the phone reverts back to wifi calling turned on even though I had chosen "Cellular calling preferred".
Does this happen to you? It still happens to my S9 unlocked and also the Note 8. Called Samsung about it but doesn't seem like anyone bothered to fix this.
hofopds said:
That's strange--the unlocked model is showing one less band than T-Mobile, LTE 46 which is for LTE LAA on the unlicensed 5GHz band. Thank you for the snap, much appreciated!
Sent from my SM-G965U using Tapatalk
Click to expand...
Click to collapse
Yes, there are a few bands not showing that the unlocked version supports. Samasung tech told me it is SIM specific, if I had an attitude SIM in the phone it should show the bands that ATT uses such as band 30.
The unfortunate thing is that TMobile SIM is disabling B28 and UMTS/WCDMA band 8 which are valid roaming bands for other carriers that TMobile can roam on. The AT&T SIM actually enables those bands, as do international SIMs. It seems like a strange oversight / mistake?
Sent from my SM-G965U using Tapatalk
ihaveabu said:
Are you able to enable "Cellular calling preferred" in the wifi calling options? After enabling this option while on wifi instead of "Wifi Calling Preferred" the phone reverts back to wifi calling turned on even though I had chosen "Cellular calling preferred".
Does this happen to you? It still happens to my S9 unlocked and also the Note 8. Called Samsung about it but doesn't seem like anyone bothered to fix this.[/n .
I do have that option and I just tried it and it turned my Wi-Fi calling off.
Click to expand...
Click to collapse
uzupan said:
I do have that option and I just tried it and it turned my Wi-Fi calling off.
Click to expand...
Click to collapse
Yea let me know in 10-15 minutes if it goes back to Wifi calling. My phone will do the same. It'll switch to cellular calling but switch back to wifi calling in a few minutes on its own
It has not switched back yet.
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ihaveabu said:
I just turned mine on 5 minutes ago. My notifications now shows Calls will be made over Wi-Fi.
If I toggle wifi calling on and off again it'll go away and go back to cellular calling.
Do you have Keep Cell Data on enabled in developer settings? I don't have developer settings enabled at all so maybe that has something to do with it?
---------- Post added at 01:11 AM ---------- Previous post was at 01:07 AM ----------
Just tried again same thing. Wifi calling gets enabled on its own, this time 3 min after I retoggled it to Cellular preferred
Click to expand...
Click to collapse
Wow, that is weird. I just rebooted my phone, wifi calling is still turned off. I did not change it in developer settings.
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