Check the thread pages to see results from other users who have had much better results than the ones I got.
This solution was discovered while I was checking out the CDMA Hero forum, so I don't take credit for discovering the method.
http://forum.xda-developers.com/showthread.php?t=651848&highlight=cell+standby
Goto dialer and dial *#*#4636#*#* (DO NOT press send) wait a second and you will get the test menu.
In the test menu choose 'Phone Information'
scroll down and choose on the first drop down - GSM auto (PRL) (for high speed data) or GSM only (You may get 3g if not use GSM auto (PRL))
Back out to test menu then back into 'Phone information' to see if it sticks (if not try again) then back all the way out.
You might want to reboot, but I found the settings worked straight away.
Edit 3 - I don't take any responsibility for step 6 - 6) Try other settings on the dropdown if you are brave as I don't know the consequencies of using settings like "EvDo only" and "unknown" as they may be better depending on the way your provider provides information.
Edit 4 - can't seem to select the other settings like EvDo and unkown anyway.
Edit 3 - TBH - GSM auto (PRL) is working for me with HSDPA and I will try
(PRL) instead of GSM auto (PRL) <- edit - previously it mistakenly said GSM only
the CDMA and WCDMA settings later to see what other effects there are.
This way I managed to get 5½ hrs and only lose 10% battery (GSM Only)! (Edit 3-) Slightly more drain with GSM auto (PRL) but still better than before.
Previous to this I lost 35% in the same amount of time with the same use (sometimes even more when I didn't even use the phone all night).
Hope the devs can make use of this (maybe mess with other settings in there to improve battery more.). I did notice that the GSM auto (PRL) uses a bit more battery than GSM only, but that is to be expected.
Edit: Actually you might need to set it on each reboot, not sure, the settings stayed when I rebooted
Edit 2: When you change roms (or re-install a rom) you will need to do this again, but should stay after a normal reboot as it does for me.
============================
Results:
Your results will vary depending on the rom, but it should improve battery performance - some have had better results than me using this.
GSM only <---- If you don't get 3g with this it is the same as 2g setting then use GSM auto (PRL) if you want faster than 2g (as some people are getting 3g on GSM only - I will investigate. (if you don't use internet or don't need fast internet)
5½ Hrs - lost 5% Battery - This one is same as running 2g as you don't get HSDPA, but using Opera browser makes browsing fast even using this. If you want Higher speed data use the one below.
GSM auto (PRL) <---- Recommended if you want High speed Internet and save battery
1:40am to 2:00pm (12hrs 20 mins) - lost 40% battery with moderate use a bit of surfing at HSDPA speeds, a few calls and messing with a few apps. Other people have had even better results than me though, so I might change my rom and try again. (I would usually about this amount of time I would have lost about 70-75% - and yes it was that ridiculous - I had to find something to stop this).
" WCDMA Only"
2:06pm to 11:37pm - (9hrs 31mins) lost 46% battery again moderate use and a reboot
This one might be useful if you live in a place that has low GSM signal like the chap in post #10 as it does give HSDPA - but this is only a suggestion as I cannot test it in Iceland. Anyway
" WCDMA preferred"
6:02am to 2:51pm - (8hr 49mins) lost 41% battery this time with less use that the WCDMA use and no reboots.
=============================
Conclusion: (For me anyway)
SO my preference is GSM auto (PRL) some people have got some excellent results with this. You may, however, require one of the other options depending on your service provider signals.
===========================================
EXTRA OPTIONS :
Other settings you can change: (You may have tried this already)
If you don't get GSM auto (PRL) then if you press the menu button on your phone in the 'phone information' page and select 'radio band', you may be able to change it to Automatic or one of the other settings and then you might get GSM auto (PRL).
Available Radio Bands * You may get others depending on the radio you have installed, but I haven't confirmed this*
Automatic
EURO Band
USA Band
JAPAN Band
AUS Band
AUS2 Band
There are other settings there that I haven't messed with, maybe someone with more knowledge may be able to help
Thanks to those who found out what PRL stood for, I will try to update this info in the instructions soon.
========================
I think the reason this works is because it prevents the phone from constanly looking a round for various networks types as it I did notice that the Cell standby time is always high and using this method the cell can standby without constantly searching for a signal thereby wasting power. ALso using this method my "Awake time" is a LOT LOT lower than my "Up time" - about 1200% less (is that right 12 times lower (Up 12hrs - Awake 1hr) ?) - before this the two times were most of the time the same and some times slightly lower. - I'm sure someone will let me know if this theory is incorrect - and I'm open to and welcome that.
This is my experience you can read other peoples who have achieved a lot better than me, and I'm glad I spotted this and let you guys know. (Those who are saying that you've known about this test menu thanks for letting me know that you knew about it before, but a lot of other people didn't know about it. ALso I don't think people have used this as a tool for increasing battery in the GSM section of the forum. As I mentioned at the top of this post I noticed it in the CDMA section as a way of increasing battery performance. - credits to them for thinking it up in the first place.) -
All I am saying though, is to test it out yourself.
.
.
Just tried this. If it works i'll kiss you.
petsasj said:
Just tried this. If it works i'll kiss you.
Click to expand...
Click to collapse
Well in that case I don't know whether I want it to work now, LOL, unless you're a fit babe.
I went back to 1.5 for battery problems, let me know if it works so i can go to 2.1 roms
This is just using 2g instead of 3g, isn't it?
xangma said:
This is just using 2g instead of 3g, isn't it?
Click to expand...
Click to collapse
Like I said in the first post GSM (auto) PRL gives you 3g/hdspa but not as brilliant battery as GSM only, but is better than before.
I am now unplugged from fully charged. Will report back in the morning and throughout the day to let you know if this works.
About PRL, here's what some telecom website says:
The term PRL actually refers to file stored in your phone. This file directs the phone to find alternative networks to operate on when the primary operator cannot be reached. Updating the PRL will store in the phone which are the most up to date, current networks to operate on. In order to operate on another carrier’s network your primary service provider must have a roaming agreement with other carriers.
Almost all phone carriers, such as Oxygen, Locus, Cingular, Verizon, etc. have roaming agreements with other major service providers.
Click to expand...
Click to collapse
So I guess it's useful?
Suppose so.
I am on a fairly small operator in Iceland and my phone started roaming when I did this.
I lost 3G connection and went over to Edge...
Switched back to the WCDMA Preferred.... My provider has a little limited coverage but has no roaming charges on the GSM network.
Any ideas what setting I should use for my phone other then WCDMA preferred
Yea mine is on Wcdma preferred when i go into it. Im on t-mobile uk. Ive left it for now as dont really know how long this battery is lasting. Going to give it a few days to see an average
skimminstones said:
Yea mine is on Wcdma preferred when i go into it. Im on t-mobile uk. Ive left it for now as dont really know how long this battery is lasting. Going to give it a few days to see an average
Click to expand...
Click to collapse
I'm on T-Mobile UK and GSM auto (PRL) gives me 3g/H and GSM only gives me gprs. Like I said, both give me loads of battery time (GSM auto PRL is a bit less than GSM only though).
Interesting, I may have done this accidentally a few days ago...
I just checked and it was already on GSM auto PRL, I'd changed this in my build.prop last time i was fiddling:
ro.telephony.default_network = 0
I thought that would give me wcdma preferred but apparently not...
I'll have done your tutorial ... will wait till end of day what happens
Definitely helped battery life.
Thumbs up!
In fact i can be wrong, but this tip only disable 3G access... only GSM and Edga.. so it save some battery for sure.. but you will navigate slower if you have a real 3G or 3G+ access.. am i wrong ?
Ciao
Fred
Surely this does the same as the button in the options to just use 2G?
frederikk said:
In fact i can be wrong, but this tip only disable 3G access... only GSM and Edga.. so it save some battery for sure.. but you will navigate slower if you have a real 3G or 3G+ access.. am i wrong ?
Ciao
Fred
Click to expand...
Click to collapse
Correct me if I am wrong, but isn't HSDPA faster than 3G?
source: http://en.wikipedia.org/wiki/High-Speed_Downlink_Packet_Access
in which case you would get your faster browsing using GSM auto (PRL) - giving you HSDPA. I certainly get a H showing at the top of the screen while browsing and it isn't constantly connected when I'm not browsing, which it was doing (connecting and disconnecting all the time) before I chose this setting, and thereby my battery life was extended a lot.
Edit: Just try it - if it doesn't work just put it back to your original setting, it has worked for me - There are other settings in there but I have not tested them out yet.
btdag said:
Surely this does the same as the button in the options to just use 2G?
Click to expand...
Click to collapse
It may be, but not if you choose GSM auto (PRL) - also make sure you have the correct APN settings from your service provider. I did notice that the standard APN's on the phone have always been a little different from the ones on the T-Mobile UK website.
This is not a fix for the battery issues in 2.1 roms, althought it may help as 3g doesn't use the same amount of battery as 2g. But i think everyone knows that anyway. Much easier having the 2g/3g toggle on the home screen and changing it to 2g only when you are not using the web browser etc
ps: before people say other wise this menu has been known for ages and every rom I use is always on GSM.
Related
I love 3g, but after one week on Edge only, and therefore with great battery life, I get off the plane in London and 4hrs later my battery is rub down.
I really do not need 3G, the speed difference for push email is irrelevant...
So any clues how to do this for those of us happy with good old gprs?
The search system is your friend... Check the main Hermes forum.
mikeycollins13 said:
I love 3g, but after one week on Edge only, and therefore with great battery life, I get off the plane in London and 4hrs later my battery is rub down.
I really do not need 3G, the speed difference for push email is irrelevant...
So any clues how to do this for those of us happy with good old gprs?
Click to expand...
Click to collapse
You can change the band the phone uses, its in phone>options>network(tab)
(i think)
just choose the appropriate band for GSM .
mikeycollins13 said:
I love 3g, but after one week on Edge only, and therefore with great battery life, I get off the plane in London and 4hrs later my battery is rub down.
Click to expand...
Click to collapse
Wow. You get four hours? I'm lucky to get three in 3G mode with instant push enabled. I finally decided that I can live with getting email every 15 minutes and having my battery last 10 hours.
mikeycollins13 said:
So any clues how to do this for those of us happy with good old gprs?
Click to expand...
Click to collapse
Search Google or the forums for "Hermes BandSwitch" -- click on the link for Comm Mgr Pro, then the link for BandSwitch (but check out Comm Mgr Pro, too).
BandSwitch is the easiest tool for switching between 3G and GSM. Some OS versions have a "Band" tab in the Phone Options screen, but most do not (a lot of operators don't want people screwing with that because they can charge more for 3G). If you have a Band tab, you can force it to GSM -- but only if you don't have an open data connection (it's kind of tricky to kill the connection and get into the options to change the settings -- and it won't let you change them while your radio is off).
What I did was to get the phone in an area where it gets no signal, then go into the phone, options, band, and take it off 3G or auto, and put it to GSM, should work.
AM
Bandswitch
For me, Bandswitch is an absolute no-brainer app to install on your phone. Very quick and easy switching your phone from GMS to 3G to Auto Select .. all from the today screen. It is always the first app install after every re-flash or hard reset of my phone ... as I tend to keep my phone on GSM most of the time to save battery life, and only if I am in a 3G area and know I will need to make tons of calls do I switch back to 3G (so I can send/receive email and chat at the same time).
If you have not checked out this app (see link above) I highly recommend it.
I have noticed in the past few weeks that my signal reception has gotten worse. Places where I usually get 3G and HSPDA, now I only get Edge. It's seldom I get 3G anymore anywhere.
I am currently using K's ROM v1.30b. I tried a bunch of different radios as well, but no affect.
I am wondering is there something that can cause the signal to drop like that? Is it ROM dependent?
BTW, I'm on at&t in the midwest.
No one knows what can cause this?
Unless you have handled your device badly then it sounds like a transmitter issue. What radio version are you using? Also go into: start>system>phone>band
tell us what settings are selected.
The reception and etc....is attributed to the radio stack version, nothing else.
mrvanx said:
Unless you have handled your device badly then it sounds like a transmitter issue. What radio version are you using? Also go into: start>system>phone>band
tell us what settings are selected.
The reception and etc....is attributed to the radio stack version, nothing else.
Click to expand...
Click to collapse
Thank you for your reply. I've used the following radios:
1.47, 1.48, 1.50, 1.54 all with approximately the same results. Meaning mostly Edge network everywhere and very very rarely 3G. Whereas it was 3G mostly before.
My settings are :
Select your network type: GSM (Should this be Auto?)
Select your GSM/UTMS band: Auto
Dont forget that sometimes the problem can be on AT&T's end...
The tower by my work has occasionally gone screwey for a day and all I can get is EDGE, or sometimes 3G with only 1 or 2 bars before switching to another tower on EDGE (normally full bars).
It's happened 4 times in the last year, each lasting only one day.
Go to a friends house or somewhere else and see if 3G comes back. If so then it might just be your local tower, esp. since you have tried so many radios without a difference.
EDIT: just read the above post..
Network type MUST be Auto or WCMDA for 3G to function!!
anubus12 said:
Thank you for your reply. I've used the following radios:
1.47, 1.48, 1.50, 1.54 all with approximately the same results. Meaning mostly Edge network everywhere and very very rarely 3G. Whereas it was 3G mostly before.
My settings are :
Select your network type: GSM (Should this be Auto?)
Select your GSM/UTMS band: Auto
Click to expand...
Click to collapse
Your troubles as shown in the post above this one....your mode is set to GSM....hence why your device will not work on UMTS/3G unless the mode is set to WCDMA or auto.
I have a problem with setting android to only use 2G networks. I can tick an option under settings "Use only 2G networks" but after i leave the settings menu it gets "unticked" again threfore i,m constantly on 3G which wouldn't be a problem but in the areas where there is no 3G signal android loses signal and wont connect to 2G network. I can turn off 3G under winmo tof orce android to only use 2G networks but it takes time. My question is can anyone successfully setup their android to use only 2G networks?
Same Problem
I´m having the same problem and for me it´s worse because it drain my battery really fast (don´t last more than 4 hours).
Could somebody please fix it as soon as possible because this way is really difficult to use android as main OS.
When I put a Sim Card that doesn´t have 3g I don´t have this battery problem.
I hope somebody could help me with this problem.
could someone please look into this? 3G kills my tilt realy fast too. this is the only thing stoping my from using android as my main os.
odz said:
could someone please look into this? 3G kills my tilt realy fast too. this is the only thing stoping my from using android as my main os.
Click to expand...
Click to collapse
Try this:
$ su
# rwsystem
# nano system/build.prop
Find the part that says something about default_network=0. Try changing it to 1. Save with dpad-center+x, then y and enter.
# rosystem
Restart your phone to have it take effect. I'm currently trying out the value 3 which is "use GSM or WCDMA, whichever provides the strongest signal" and it seems to work better for me. Before I often had switched to Roaming after calls and somethings loosing connection completely, but I have only tested it for a short time so I'm not 100% sure if it helped or not.
Next release will include scripts to change this and some other things easily.
Oh, and the value 1 is supposed to be "GSM only" so it might help.
kallt_kaffe said:
Try this:
$ su
# rwsystem
# nano system/build.prop
Find the part that says something about default_network=0. Try changing it to 1. Save with dpad-center+x, then y and enter.
# rosystem
Restart your phone to have it take effect. I'm currently trying out the value 3 which is "use GSM or WCDMA, whichever provides the strongest signal" and it seems to work better for me. Before I often had switched to Roaming after calls and somethings loosing connection completely, but I have only tested it for a short time so I'm not 100% sure if it helped or not.
Next release will include scripts to change this and some other things easily.
Oh, and the value 1 is supposed to be "GSM only" so it might help.
Click to expand...
Click to collapse
Kalt, should we change this "ro.telephony.default-network=0"? to "1"
If so, it didn't work for me . I'm still on 3G.
-Arturo- said:
Kalt, should we change this "ro.telephony.default-network=0"? to "1"
If so, it didn't work for me . I'm still on 3G.
Click to expand...
Click to collapse
Yes that's the one. Well, getting information about the settings in build.prop isn't easy. I'm don't know if the information I found was a fact or just a guess.
kallt_kaffe said:
Yes that's the one. Well, getting information about the settings in build.prop isn't easy. I'm don't know if the information I found was a fact or just a guess.
Click to expand...
Click to collapse
Kalt does this issue also occur while running Android from Nand?
HELP!!!
I have tried everything here and still no 2G. I love android but battery life sucks. There has to be a way to force 2G all the time. 3G is great but if batterylife will suffer so badly I want to turn it off perminently. Does anyone know how to do this? I'm using VaniljEclair RLS7c and I have been messing with the scrips in the update and still nothing after reeboot.
Takiyon said:
I have tried everything here and still no 2G. I love android but battery life sucks. There has to be a way to force 2G all the time. 3G is great but if batterylife will suffer so badly I want to turn it off perminently. Does anyone know how to do this? I'm using VaniljEclair RLS7c and I have been messing with the scrips in the update and still nothing after reeboot.
Click to expand...
Click to collapse
I have tried everything too with almost all builds (1.6 2.1 and 2.2). My opinion is that ro.telephony.default-network command do not work on Kaiser. If ro.telephony.default-network is removed from build.prop nothing happens. Maybe TelephonyPprovider.apk is something to do with 2G 3G switching.
Bump... Please someone help us!! There has to be some hack we can try.
Please help us!!!
I agree,
Would be great to be able to force certain networks. If you look at the power usage/ per network the faster the network the more power it consumes. I'd like to be able to by default use the low speed and switch it to fast when I'm really using the phone. My EVO has a 4G widget switch. If it didn't the phone would be worthless to me as 4G in my area is not great. 2hrs 4G on (with no 4g network) = -40% battery... Love to do the same for 3G as that would save "about" 20% more battery life alone. I might get a whole day of use without charging...
-Arturo- said:
I have a problem with setting android to only use 2G networks. I can tick an option under settings "Use only 2G networks" but after i leave the settings menu it gets "unticked" again threfore i,m constantly on 3G which wouldn't be a problem but in the areas where there is no 3G signal android loses signal and wont connect to 2G network. I can turn off 3G under winmo tof orce android to only use 2G networks but it takes time. My question is can anyone successfully setup their android to use only 2G networks?
Click to expand...
Click to collapse
Very simple. You use file follow. You install it,only mark or unmark for 3G or 2G. I'm from Vietnamese. I speak E not very well. I'm sr if you don't undertand
looks like this is only for 3g-2g data connection.Discussion is about GSM -CDMA network
pro_hvtc said:
Very simple. You use file follow. You install it,only mark or unmark for 3G or 2G. I'm from Vietnamese. I speak E not very well. I'm sr if you don't undertand
Click to expand...
Click to collapse
As far as i know apndroid disables both 2g/3g connections and we only need to block system from using 3g connections leaving 2g still connectable.
Has anybody seen this before?
http://www.android-cellphones.org/android-motorola-droid-tricks-disable-3g.html/
I get the settings, but the problem is that I can't choose any - no matter what I choose it stick to "Unknown" type..
milanche said:
Has anybody seen this before?
http://www.android-cellphones.org/android-motorola-droid-tricks-disable-3g.html/
I get the settings, but the problem is that I can't choose any - no matter what I choose it stick to "Unknown" type..
Click to expand...
Click to collapse
I've tried that a while ago and it didn't work for me.
I've bin going thru htcgeneric-ril.c (source of libhtcgeneric-ril.so), provided in another topic and noticed this lines:
Code:
switch (rat)
{
case 0: at_rat = "1,2"; break;/* Dual Mode - WCDMA preferred*/
case 1: at_rat = "0"; break; /* GSM only */
case 2: at_rat = "2"; break; /* WCDMA only */
}
Could there be a solution lurking in those lines to ongoing 2G/3G switching problem on Kaiser devices with Android?
Those look like the settings from the phone information screen in testing, it's certainly the right area to be looking in.
Question: who's gonna be brave enough to hack htcgeneric-ril.c and recompile that lib?
I already asked n2rjt to do it, if it's possible - still waiting for his reply.
Hey I just came from Galaxy S and there is a way to disable Hsdpa in there which improves battery life amazingly....
I was wondering if there is a way to do that in Desire? (for my city 3g speeds are faster than hspa for some reason)...
Also is there a way to select which band the phone is connecting by 850 vs 1900 ... or to see what it is using ?
any help would be appreciated
It's in the settings someone in network
There is also a widget to totally disable mobile internet which I use to save battery
Sent from my HTC Desire
Go to Settings > Wireless & Network Settings > Mobile Networks...
That's pretty much what you can do with the Desire as far as mobile networks are concerned. GSM phones normally switch to different frequency bands depending on where they are located and in the Desire I don't think you can select which one to go for (besides it's an unnecessary feature in my opinion)...it just does it on its own. Maybe there is an app around that let's you do this?...
As for viewing which band you are on....you can't do it on a standard ROM but there might be custom ROMs or an app that let's you do this.
Update: Some apps that might interest you => 4G, CDMA, GSM & Wifi Map Viewer from Sensorly.com
=> Open Signal Maps Beta from Staircase 3, Inc.
=> Antennas from mpoly
=> Quick Settings (maybe..)
mmm none of those do anything like it...
all those either just shut off data or turn it on... im not sure if anyone has used the galaxy s
http://forum.xda-developers.com/showthread.php?t=837716
this is what im talking about... saves the phone a LOT of battery by just forcing it to use 3g instead of hspa ...
i think developers can prolly make more sense of it.. i mean if they have a way.. there has to be one in other devices ...no?
danial.aw said:
mmm none of those do anything like it...
all those either just shut off data or turn it on... im not sure if anyone has used the galaxy s
http://forum.xda-developers.com/showthread.php?t=837716
this is what im talking about... saves the phone a LOT of battery by just forcing it to use 3g instead of hspa ...
i think developers can prolly make more sense of it.. i mean if they have a way.. there has to be one in other devices ...no?
Click to expand...
Click to collapse
Ah, so you have a Galaxy S.....unfortunately, this is a HTC Desire forum, so it would be better if you posted this in the Galaxy S forums. You may not find the answers you are looking for here as this forum mainly handles a different device to the Galaxy S.
What I said before is only applicable to the HTC DESIRE. I thought you switched to a Desire when you mentioned you came from a Galaxy S, but I was mistaken. The apps I mentioned as mainly for monitoring the 4G, 3.5G & 3G (i think 2G too) coverage. If you are looking to switch between them (i.e. turn HSDPA off and turn 2G on) I am sure there is a way to do so...on the Desire this can be done through the Mobile Networks settings...
And no, I'm not familiar with the Galaxy S....
no i had the galaxy s... (i posted that for reference as to how its done on that)...
and ya those apps just toggle just 2g vs 3g...
im looking for a umts vs hspa toggle... (3g vs 3.5g).... because umts takes way less battery than hspa does...
tried to mess around in the band setting screen but couldnt find anything
SOLUTION
what you need is to edit /system/build.prop file
here are my settings:
ro.ril.hsxpa=0
ro.ril.gprsclass=12
ro.ril.hsdpa.category=1
ro.ril.hsupa.category=1
after doing the and couple?... of restarts H icon changed to 3G and it really does save battery significantly and speed is pretty much enough for browsing or email
would have thought if battery life was vital then you'd disable data completely tbh
This is somewhat network dependent. Here in Sweden I know of one network that will have you at HSXPA (H) as soon as it is possible. My network on the other hand will set to 3G when WCDMA is detected and set to H only during data traffic.
And then G if only GSM is detected.
I disable data via widget if I want to save power even further. Not that it has that much impact. There is a setting under wireless and network > mobile network at the bottom : ativate mobile data (this is translated). This setting will force the data connection to be active even if unused. You have to experiment here what setting is best for your network. On my network, if I remove the tick here (data connection will let go if not used and reconnect when needed) my battery will drain quicker. Providers with other policies might give different result.
found something good http://forum.xda-developers.com/showthread.php?t=909458
apparently xda is very strict on my posting etc. my fourth try trying to post something to help out..
liquidribs said:
found something good http://forum.xda-developers.com/showthread.php?t=909458
apparently xda is very strict on my posting etc. my fourth try trying to post something to help out..
Click to expand...
Click to collapse
Thank you! thank you! thank you! For bringing thing thread back from the grave.
heyjoe66 said:
SOLUTION
what you need is to edit /system/build.prop file
here are my settings:
ro.ril.hsxpa=0
ro.ril.gprsclass=12
ro.ril.hsdpa.category=1
ro.ril.hsupa.category=1
after doing the and couple?... of restarts H icon changed to 3G and it really does save battery significantly and speed is pretty much enough for browsing or email
Click to expand...
Click to collapse
Thanks! Very useful! For me it was only necessary to change the "ro.ril.hsxpa=0" line, then do a couple of restarts (to make it clear, a single restart wasn't enough, HSDPA was disabled only after the second restart for me).
Is it possible to disable LTE on AT&T using an AOSP ROM?
I've tried the rat restriction method and the wap.cingular apn and neither worked.
Sent from my SAMSUNG-SGH-I747
phositadc said:
Is it possible to disable LTE on AT&T using an AOSP ROM?
I've tried the rat restriction method and the wap.cingular apn and neither worked.
Sent from my SAMSUNG-SGH-I747
Click to expand...
Click to collapse
No. Not yet anyway. So far the rat restriction works only on stock TW. As far as wap.cingular, I have noticed that it no longer works either. I think AT&T did something that seemed to disable it.
aybarrap1 said:
No. Not yet anyway. So far the rat restriction works only on stock TW. As far as wap.cingular, I have noticed that it no longer works either. I think AT&T did something that seemed to disable it.
Click to expand...
Click to collapse
AT&T effing sucks. They let iPhone disable LTE but not us? Makes no sense.
Sent from my SAMSUNG-SGH-I747
aybarrap1 said:
No. Not yet anyway. So far the rat restriction works only on stock TW. As far as wap.cingular, I have noticed that it no longer works either. I think AT&T did something that seemed to disable it.
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My LTE toggle on CM10 works fine using the UCDLK3 modem (or whatever it is). The settings update from "WCDMA only" to "LTE/WCDMA/GSM" when I toggle it (just to confirm). I haven't updated to CM10.1 yet, but last I tested it the LTE toggle did not work.
On CM10, I did have to go into Settings and find the Mobile Networks option (its on the same page you enable Data Roaming) and select an AT&T network once. The toggle would not work if I selected "Select automatically". My phone is also unlocked using the dialer code that was posted for ICS 4.0 ROMs - not sure if this matters.
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
AacidusX said:
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
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Click to collapse
Interesting so you just have to do the network operator thing? I've gone into that menu before and tried to check 2g and it never let's me, but I've never gone into network operators section. Will try tomorrow!
Sent from my Nexus 7
AacidusX said:
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
Click to expand...
Click to collapse
Good to know. Question though...does the wap.cingular APN still drop connections?
AacidusX said:
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
Click to expand...
Click to collapse
Holy cow it worked broseph! I went into Network Operators. It took about 2 minutes to load the list, then showed three AT&Ts and a T-Mobile. I picked the first AT&T.
Then I tested 2g by putting a check mark in the force 2g box, and sure enough, it worked. I then chose GSM/WCDMA preferred, and sure enough, it forced HSPA+ without even having to choose the wap.cingular APN (in fact, I am using the "phone" APN).
Any downsides to selecting the network operator that way? I'm pretty sure AT&T does not roam onto T-Mobile in any event, so off the top of my head, I can't think of any downside. Would be curious if anybody can think of any downsides to forcing HSPA+ this way.
I personally will probably leave it on LTE most of the time anyways... I just wanted a method to force 2g or HSPA for the few times that I am in a location with weak LTE and the phone kills its battery by switching back and forth between LTE and HSPA. Awesome to finally have one.
AacidusX said:
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
Click to expand...
Click to collapse
Isn't that what I said just above? Except you don't need to change APNs. Thanks for clarifying some of the menu options though.
phositadc said:
Holy cow it worked broseph! I went into Network Operators. It took about 2 minutes to load the list, then showed three AT&Ts and a T-Mobile. I picked the first AT&T.
Then I tested 2g by putting a check mark in the force 2g box, and sure enough, it worked. I then chose GSM/WCDMA preferred, and sure enough, it forced HSPA+ without even having to choose the wap.cingular APN (in fact, I am using the "phone" APN).
Any downsides to selecting the network operator that way? I'm pretty sure AT&T does not roam onto T-Mobile in any event, so off the top of my head, I can't think of any downside. Would be curious if anybody can think of any downsides to forcing HSPA+ this way.
I personally will probably leave it on LTE most of the time anyways... I just wanted a method to force 2g or HSPA for the few times that I am in a location with weak LTE and the phone kills its battery by switching back and forth between LTE and HSPA. Awesome to finally have one.
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Click to collapse
Yes, it works. I use this all the time. No need to change APNs either. I've never noticed any problems with this. Once in a blue moon I have to go and redo the network operator part but I've never figured out the exact reason. I have a MicroCell due to poor coverage so I often elect to turn off LTE at home and re-enable when I'm out and about. I've also traveled all over the country and never had an issue I would equate to me manually selecting the network operator.
romracer said:
Isn't that what I said just above? Except you don't need to change APNs. Thanks for clarifying some of the menu options though.
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Haha yes reading back to your original post that is basically what you said. But since you didn't say "network operator" it didn't register for me even though it's now clear that's what you meant =P
Thanks for the help.
romracer said:
Isn't that what I said just above? Except you don't need to change APNs. Thanks for clarifying some of the menu options though.
Yes, it works. I use this all the time. No need to change APNs either. I've never noticed any problems with this. Once in a blue moon I have to go and redo the network operator part but I've never figured out the exact reason. I have a MicroCell due to poor coverage so I often elect to turn off LTE at home and re-enable when I'm out and about. I've also traveled all over the country and never had an issue I would equate to me manually selecting the network operator.
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Thank you. Now I can finally have my "cake and eat it too". Did not even think to try these methods. Thank you for your information. This is so much easier than on stock rom...with the goodness of all that is AOSP.
I just did a test to see idle drain overnight on HSPA and it was actually worse than LTE. On LTE I drop about 7% overnight. Last night on HSPA I dropped 12% in 9 hours. Better battery stats showed 98% deep sleep, too, which is about the same as on LTE.
Anybody else ever try this? Curtis if those results are normal-i would have expected less drain on HSPA.
Sent from my SAMSUNG-SGH-I747
phositadc said:
I just did a test to see idle drain overnight on HSPA and it was actually worse than LTE. On LTE I drop about 7% overnight. Last night on HSPA I dropped 12% in 9 hours. Better battery stats showed 98% deep sleep, too, which is about the same as on LTE.
Anybody else ever try this? Curtis if those results are normal-i would have expected less drain on HSPA.
Sent from my SAMSUNG-SGH-I747
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It actually depends on so much more than your data, there can be apps running in the background, bad signal, etc.
BWolf56 said:
It actually depends on so much more than your data, there can be apps running in the background, bad signal, etc.
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My signal was about -70 dBm (ie, very good) and better battery stats showed 98% deep sleep.
In any event, it was running the same apps as it was the night before when it lost only 7% on LTE. I'm just surprised LTE idle drain was less than HSPA under identical circumstances and was wondering if anybody else experienced the same?
Sent from my SAMSUNG-SGH-I747
phositadc said:
My signal was about -70 dBm (ie, very good) and better battery stats showed 98% deep sleep.
In any event, it was running the same apps as it was the night before when it lost only 7% on LTE. I'm just surprised LTE idle drain was less than HSPA under identical circumstances and was wondering if anybody else experienced the same?
Sent from my SAMSUNG-SGH-I747
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It could be coming from your carrier and their towers. If you really wanna save battery, set it to 2G overnight. Also, 4G is only a battery drainer when it's being used, which it isn't much overnight.
BWolf56 said:
It could be coming from your carrier and their towers. If you really wanna save battery, set it to 2G overnight. Also, 4G is only a battery drainer when it's being used, which it isn't much overnight.
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+1. I set to 2G every night. Of course I also always have switched off data and wifi because I don't care about emails and other misc stuff while I sleep. I have slightly better 2G reception in my home than 3G or 4G so this helps even more on battery savings. Cut my battery drain nearly in half (6-8 hours I may get a 3% drain or an absolute max of 4% if I keep snoozing my alarm).
This doesn't work on my AOSP device, I cannot change Network Type or check the "Use 2G Networks only" box. What am I doing wrong?
AacidusX said:
You can on AOSP.
System Settings> More> Mobile Networks
Now go to Network Operators, Might take a couple of minutes to scan, once a list shows up. Select the first option.
Now go back and choose the wap.cingular APN.
Also, if you want to get on 2G, the "Use only 2G Networks" is now able to be checked as well.
These options will reset after a reboot and toggling between Airplane mode.
Click to expand...
Click to collapse
Wow this works
I think I've always been too impatient to wait 60 seconds for the network operators to load lol
But props im not sure if this is recently discovered but I've spent a lot of time searching for how to disable lte and could never figure it out.
Actually, got it to work. Picking the second "AT&T" from the network operator list allowed me to toggle the other settings. This is a big deal for me because my area has "partial" 4G coverage and my phone prefers a poor, slow 1 bar LTE signal over 5 bar HSPA+, thanks a lot!
wap.cingular will go in and out every 5 minutes and when i enable wifi and turn it off, it takes a good 1-2 minutes to regain connection. (On TW)