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I recently bought a new "Samsung Galaxy S III 16GB SGH-T999L 4G LTE White - T-Mobile" from Oakland Wireless via Amazon. This is for my fiancé, to replace her broken iPhone 4s. After popping in her T-Mobile sim card, the phone seems to work fine. However, the WiFi calling feature seems to be missing and when we try to perform a software update it ends with "process failed". The installed Android version is 4.1.1.
She went to a T-Mobile store to see if they could help. They were also unable to get the phone to update, and eventually told her that it would never work simply because we didn't buy the phone from T-Mobile. They also told her it would only be a talk and text phone, and wouldn't get data service. However, this last part is clearly false, as she has been using data without any problem.
Does anybody have experience with this issue? Were the folks at the T-Mobile store correct or mistaken?
Also, assuming they are correct and the phone can't be updated over the air, can I just download and install a stock ROM with the latest version and WiFi calling? I have a custom ROM installed on my Galaxy Exhibit, so I am familiar with installing ROMs, but my fiancé doesn't want a custom ROM, she wants stock.
Look in the t mobile s3 section there should be a Odin file you can flash (stock firmware)
Sent from my SM-N900A using XDA Free mobile app
Well first of all the T999L released with 4.1.2 so something doesn't seem right, and it may be why its not updating. To get a better idea of the phone model, can you post a screenshot of the about device section? And I assume you are not rooted correct? Download this app https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo scroll to firmware info and post it here as well
Thanks for the replies!
ryant100 said:
Look in the t mobile s3 section there should be a Odin file you can flash (stock firmware)
Click to expand...
Click to collapse
I didn't see any stock stuff in the tmobile s3 ROM list, but I did a little more searching and found this thread with stock firmware and OTA's:
http://forum.xda-developers.com/showthread.php?t=1949687
Not sure if I should try to do the OTA update or one of the complete firmwares. Any idea why there is no OTA update for 4.3?
serio22 said:
Well first of all the T999L released with 4.1.2 so something doesn't seem right, and it may be why its not updating. To get a better idea of the phone model, can you post a screenshot of the about device section? And I assume you are not rooted correct? Download this app https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo scroll to firmware info and post it here as well
Click to expand...
Click to collapse
Hmmm. Maybe I got the version wrong or maybe it's not really a T999L? She isn't here with the phone right now, so I'll have to get back to you.
I stopped posting the OTA's simply because they're next to useless for us. Fladhing the firmware via Odin has a much greater success rate snd OTA's are notorious for causing all sorts of problems. Just wasn't worth the trouble to post them anymore.
I attached the screenshots from the phone info app. Looks like maybe it's not the LTE model after all? I looked behind the battery, and it also says SGH-T999 with no "L" on the end.
The strange thing is that it shows an LTE mode in the network settings. However, I've never seen it actually use LTE mode, even though T-mobile says it should work at our location (Seattle). Using the Ookla speed test app, I get ~4 Mbps down (the same speed as my Galaxy Exhibit).
I'm thinking about returning the phone if it is not the correct model. I'm curious though, if I try updating the firmware and it doesn't work, can I restore everything exactly to it's current state before I return it? I don't want them to refuse the return because I messed with the firmware.
Ok looks like you got a Frankenstein phone.. That's an at&t bootloader with a Canadian product/model name & T999 build that I've never heard of.. I would just return it or ask for an exchange, not worth it to keep messing with it
Yup. Another one! And its got a csc from the I9300! The LEM build, if I remember right, was the original stock 4.0.4 firmware. But there is way too much conflicting info there for me to be comfortable recommending much of anything.
I just installed that app to make sure it wasn't giving bad info, and it is showing everything correctly for mine.
As for the LTE showing up in the menu, that isnt too uncommon. If you want to know what you are really connected to, check Settings, About Device, Status, Network Type. Best to do this during a large download.
But aside from it being a franken-phone, everything that is related to the T-Mobile model points to it being a non-LTE T999.
DocHoliday77 said:
Yup. Another one! And its got a csc from the I9300!
Click to expand...
Click to collapse
Yeah I noticed that too but guess I forgot to mention it ? so odd how out of nowhere there this wave of franken-phones going around
Thanks for everyone's advice. I'm going to return the phone.
Probably the best choice. Its just more trouble than its worth imo.
Hi, I recently flashed the skydragon rom v 10 for my AT&T M8. Everything seems to be working fine except I cannot get incoming calls. I can send calls and texts but cannot get incoming calls. Anyone know a fix for this?
grrrdn said:
Hi, I recently flashed the skydragon rom v 10 for my AT&T M8. Everything seems to be working fine except I cannot get incoming calls. I can send calls and texts but cannot get incoming calls. Anyone know a fix for this?
Click to expand...
Click to collapse
Answered your question here: http://forum.xda-developers.com/att-htc-one-m8/help/skydragon-rom-getting-incoming-calls-t3166763
Please don't ask the same question in multiple places.
redpoint73 said:
Answered your question here: http://forum.xda-developers.com/att-htc-one-m8/help/skydragon-rom-getting-incoming-calls-t3166763
Please don't ask the same question in multiple places.
Click to expand...
Click to collapse
Sorry about posting it in multiple places. Do you know if the disable is right away or takes some time? I called AT&T and they told me it was disabled and would send me notification, but incoming calls still not working and no notification. I will be calling back later today to verify though
grrrdn said:
Sorry about posting it in multiple places. Do you know if the disable is right away or takes some time? I called AT&T and they told me it was disabled and would send me notification, but incoming calls still not working and no notification. I will be calling back later today to verify though
Click to expand...
Click to collapse
Don't know. I wouldn't think an account change like that would take long. I wonder if they just told you that to get you to hang up?
redpoint73 said:
Don't know. I wouldn't think an account change like that would take long. I wonder if they just told you that to get you to hang up?
Click to expand...
Click to collapse
Even with VoLTE off, no incoming calls. But did see that sky dragon team is working on it so I guess I'll be off LTE until then. Thanks!
Is there a way to return to stock? I know you can use RUU but I am getting confused with all the talk about S-Off and S-On. My M8 is S-On with skydragon v9.0 with the lollipop updates from April. Do I need S-Off to use the RUU or do I simply lock the bootloader then use the RUU as instructed??
grrrdn said:
Even with VoLTE off, no incoming calls. But did see that sky dragon team is working on it so I guess I'll be off LTE until then. Thanks!
Click to expand...
Click to collapse
Are you sure they turned off HD Voice for your account? Understanding of this feature by the first tier customer service reps seems dodgy, at best. One user here reported that one rep said it couldn't be disabled; so he just called again, and got a rep that could do it.
grrrdn said:
Is there a way to return to stock? I know you can use RUU but I am getting confused with all the talk about S-Off and S-On. My M8 is S-On with skydragon v9.0 with the lollipop updates from April. Do I need S-Off to use the RUU or do I simply lock the bootloader then use the RUU as instructed??
Click to expand...
Click to collapse
Of course there is a way to return to stock.
If you made a TWRP nandroid of the stock ROM (which is always recommended before modding the phone), just restore it in TWRP.
Alternately, you can restore to stock with RUU. RUU will run fine with s-on with the following conditions:
1) Must be equal or greater main version (in getvar all, or OS version on hboot screen), hboot, etc. that is installed on the phone. In other words, no "downgrading" by RUU is allowed with s-on. So if you are on Lollipop firmware, you can only run the 4.28 AT&T RUU (not any of the previous ones).
Speaking of firmware, are you on the latest AT&T Lollipop firmware?
2) As you have somewhat determined, you must relock the bootloader to RUU. Relock with the command: fastboot oem lock
3) You can only run an AT&T RUU, not a RUU for another carrier version (but you may already know that).
4) Additionally, the RUU will wipe the phone, including internal storage. So backup any personal data you want to keep accordingly before RUU.
Another option (although not quite stock) is to use the following custom ROM. Its based on AT&T software (just debloated, optimized, etc.) and should therefore work correctly on AT&T's network: http://forum.xda-developers.com/att-htc-one-m8/development/att-4-4-3-2-22-1540-3-debloated-sense-6-t2837365
I ended up going the second option with the Rom by WNC.
I'm not 100% sure about the HD calling. First customer care told me they turned it off then I called again and the second told me it was off. Anyway to check?
Again, thanks for the help!:good:
grrrdn said:
I'm not 100% sure about the HD calling. First customer care told me they turned it off then I called again and the second told me it was off. Anyway to check?
Click to expand...
Click to collapse
Not that I am aware. If you were told by 2 different reps that its off, then that is prob the best you can do.
The problem did not occur if you manually switched off LTE (HSPA and GSM only)?
Did switching to WNC's ROM solve the incoming call issue?
Also, you didn't answer my question on whether you are on the Lollipop AT&T firmware?
A slight feeling this may be a different issue than the HD Voice problem, since:
1) Disabling HD Voice on your account did not solve the issue
2) You mentioned in your OP that SMS worked fine. Other folks with the HD Voice issue had problems sending/receiving SMS.
redpoint73 said:
Not that I am aware. If you were told by 2 different reps that its off, then that is prob the best you can do.
The problem did not occur if you manually switched off LTE (HSPA and GSM only)?
Did switching to WNC's ROM solve the incoming call issue?
Also, you didn't answer my question on whether you are on the Lollipop AT&T firmware?
A slight feeling this may be a different issue than the HD Voice problem, since:
1) Disabling HD Voice on your account did not solve the issue
2) You mentioned in your OP that SMS worked fine. Other folks with the HD Voice issue had problems sending/receiving SMS.
Click to expand...
Click to collapse
I was able to get calls if I manually switched to HSPA and I am running the latest lollipop firmware. Flashing WNC's Rom made everything work again. I'm guessing HD voice was switched off because when I call out, I am switched to hspa if I'm on LTE.
Not sure why the work around didn't work for me, probably unlucky
Hi Guilds,
I just flashed T mobile firmware on S8 plus which was originally unlocked version. Found couple of glitches and I hope someone might had this issue before and can give some insight.
* After flashing full T mobile firmware and full reset from recovery I can see TMB/TMB/XAA. I am not sure why? Is there anyway to make
TMB/TMB/TMB ?
* I can not see VoLTE toggle in phone setting anymore . Anyone else?
Thanks in advance.
gotojanoo said:
Hi Guilds,
I just flashed T mobile firmware on S8 plus which was originally unlocked version. Found couple of glitches and I hope someone might had this issue before and can give some insight.
* After flashing full T mobile firmware and full reset from recovery I can see TMB/TMB/XAA. I am not sure why? Is there anyway to make
TMB/TMB/TMB ?
* I can not see VoLTE toggle in phone setting anymore . Anyone else?
Thanks in advance.
Click to expand...
Click to collapse
I just did the same. I can't see the VoLTE toggle anymore, but according to IMS Settings, it is turned on and activated. There's a thread here on how to verify it.
But where are you seeing TMB/TMB/XAA? I know those are the CSCs, but what app are you using to see them?
Mr. Orange 645 said:
I just did the same. I can't see the VoLTE toggle anymore, but according to IMS Settings, it is turned on and activated. There's a thread here on how to verify it.
But where are you seeing TMB/TMB/XAA? I know those are the CSCs, but what app are you using to see them?
Click to expand...
Click to collapse
It's in the setting and about phone.
Sent from my SM-G935T using Tapatalk
gotojanoo said:
It's in the setting and about phone.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Ok, I see it now. Yeah mine is the same way. Not sure how to change that.
Mr. Orange 645 said:
Ok, I see it now. Yeah mine is the same way. Not sure how to change that.
Click to expand...
Click to collapse
Lol. I wish last one is TMB . Oh well. Not a big deal
Sent from my SM-G935T using Tapatalk
Very possible
gotojanoo said:
Hi Guilds,
I just flashed T mobile firmware on S8 plus which was originally unlocked version. Found couple of glitches and I hope someone might had this issue before and can give some insight.
* After flashing full T mobile firmware and full reset from recovery I can see TMB/TMB/XAA. I am not sure why? Is there anyway to make
TMB/TMB/TMB ?
* I can not see VoLTE toggle in phone setting anymore . Anyone else?
Thanks in advance.
Click to expand...
Click to collapse
Look for the right files, use this formula and you'll be able to change CSC Code to your preferred carrier. For your case you'll change it to TMB from XAA which will change it to fully TMB/TMB/TMB.
https://forum.xda-developers.com/galaxy-s8/how-to/switch-to-carrier-firmware-100-t3609487
@emrug Do u mean flash csc from thread u linked it?
Sent from my SM-G955U using Tapatalk
gotojanoo said:
@emrug Do u mean flash csc from thread u linked it?
Sent from my SM-G955U using Tapatalk
Click to expand...
Click to collapse
Read all from the first step, It is more than just flashing CSC file. The link has steps on how to convert to a carrier of your choice, yours is Unlocked which is XAA, if i got you right you're trying to convert it to fully T-Mobile (TMB) so you can have all TMO's features.
It sounds difficult but if you find the right files, then read and understand what to do it is as easy as 1 2 4.
I've tried this and you CAN'T change the last code. It's stored in the efs file, and it only signifies what the original firmware was. It has no effect on features or updates when you change carrier firmware. To change it, you'd have to root the device.
Mr. Orange 645 said:
I've tried this and you CAN'T change the last code. It's stored in the efs file, and it only signifies what the original firmware was. It has no effect on features or updates when you change carrier firmware. To change it, you'd have to root the device.
Click to expand...
Click to collapse
I flashed....using prince's Odin.....
1. XAA (all 4 files)
2. Booted, setup, then took the June 1st update.
3. Get into download mode again
4. Flashed TMO user data to get video calling and flashed TMO CP to get RCS messaging
(You can do it separately or together)
And I ended up with the screenshot attached.
You won't see the option for Volte but it's on by default. You won't be able to turn it off.
kcsevo said:
I flashed....using prince's Odin.....
1. XAA (all 4 files)
2. Booted, setup, then took the June 1st update.
3. Get into download mode again
4. Flashed TMO user data to get video calling and flashed TMO CP to get RCS messaging
(You can do it separately or together)
And I ended up with the screenshot attached.
You won't see the option for Volte but it's on by default. You won't be able to turn it off.
Click to expand...
Click to collapse
Your device was originally the US Unlocked version?
I'm calling BS. I've tried every method for switching carrier and flashing the carrier firmware. You CAN NOT change the last CSC code to TMB. If you started with a US unlocked version, it will always read XAA. Everything I've read states you need root to change the last characters to XAA, as they are stored in the EFS file and cannot be changed.
Mr. Orange 645 said:
Your device was originally the US Unlocked version?
Click to expand...
Click to collapse
No. I bought TMO S8+ from my local TMO store. I flash the unlock firmware to remove all the bloat. But I wanted the RCs and I wanted the native video calling. So after nearly two weeks (night and day) a flashing different combinations, I finally got everything to work, I have all T-Mobile features working.
kcsevo said:
No. I bought TMO S8+ from my local TMO store. I flash the unlock firmware to remove all the bloat. But I wanted the RCs and I wanted the native video calling. So after nearly two weeks (night and day) a flashing different combinations, I finally got everything to work, I have all T-Mobile features working.
Click to expand...
Click to collapse
Ok, that explains it. Then yes, your last CSC code will be TMB no matter what you flash. If you switch to VZW, it would read VZW/VZW/TMB. You probably didn't notice it with the unlocked firmware, because the unlocked firmware actually doesn't show any CSC in the About Screen.
Mr. Orange 645 said:
Ok, that explains it. Then yes, your last CSC code will be TMB no matter what you flash. If you switch to VZW, it would read VZW/VZW/TMB. You probably didn't notice it with the unlocked firmware, because the unlocked firmware actually doesn't show any CSC in the About Screen.
Click to expand...
Click to collapse
Oh I c.
Mr. Orange 645 said:
Ok, that explains it. Then yes, your last CSC code will be TMB no matter what you flash. If you switch to VZW, it would read VZW/VZW/TMB. You probably didn't notice it with the unlocked firmware, because the unlocked firmware actually doesn't show any CSC in the About Screen.
Click to expand...
Click to collapse
You're absolutely right. U Firmware doesn't show it. I just reflashed the XAA firmware. I didn't really care for video calling or RCS. But I do care about better battery management which the XAA does better than the TMO firmware.
Product Code: SM-G955UZSATMB
PDA: G955USQS2BQL1
CSC: G955UOYN2BQL1
Baseband: G955USQS2BQL1
Bootloader: G955USQS2BQL1
How close to stock am I
Sent from my Samsung SM-G955U using XDA Labs
spasecowboi77 said:
Product Code: SM-G955UZSATMB
PDA: G955USQS2BQL1
CSC: G955UOYN2BQL1
Baseband: G955USQS2BQL1
Bootloader: G955USQS2BQL1
How close to stock am I
Sent from my Samsung SM-G955U using XDA Labs
Click to expand...
Click to collapse
I don't understand the question
So on my T-Mobile s8+ it shows TMB/XAA/TMB, how can I get it back to TMB/TMB/TMB?
So I discovered that when I put my metro sim card in my S8+ the CSC turns from TMB/TMB/TMB to TMB/XAA/TMB, how can I get it to stay all T-Mobile, this is what is causing me to not be able to use Wi-Fi calling etc.
Hello, I'm currently using a Galaxy s9+ on ATT and plan on switching to Tmobile this week. Besides unlocking the phone do I have to do anything else for the phone to take advantage of TMobile? Do I have to flash TMobile firmware or anything like that in order for the phone to work properly and if so how, I've been out of the flashing game for a LONG time .
No you don't have to flash t mobile rom as I know when you put a new sim the phone reboots and sets the phone up for that carrier that's what it does on my s9 but mine the unlocked one so I got wifi calling with t mobile sim card in my phone
T mobile
The screen shots should show up
same boat but need to flash TMB image
okay hear's the deal, i am in the same boat moved to T-Mobile few days back and i have a Vzw branded S9+. i was of the opinion that things would workout great, but my area has poor t-Mobile network and i have been unsuccessfully attempted to flash TMB firmware on this phone. I have tried just about all combinations, and every-time the flash is done it boots back as a brand new Vzw phone and looks for a Vzw sim. I insert the TMB SIM and things work but not WIFI calling. Any leads?
riyengarxda said:
okay hear's the deal, i am in the same boat moved to T-Mobile few days back and i have a Vzw branded S9+. i was of the opinion that things would workout great, but my area has poor t-Mobile network and i have been unsuccessfully attempted to flash TMB firmware on this phone. I have tried just about all combinations, and every-time the flash is done it boots back as a brand new Vzw phone and looks for a Vzw sim. I insert the TMB SIM and things work but not WIFI calling. Any leads?
Click to expand...
Click to collapse
What odin you use??
1.13.1 patched.
---------- Post added at 02:54 AM ---------- Previous post was at 02:51 AM ----------
Some more details if that helps..
Paid $24 to Sammobil, went through the flashing process and nothing changed. Did this almost 5 times but seems VZW keeps haunting me. Am I doing something wrong? I downloaded the latest firmware RB8 from Aug 2018 for TMB via sammobile flashed the 4 files AP, BT,CP and CSC. Everything went perfect but when it boots back Damn the same old VZW and the OS says u have a non vzw sim. I even flashed the userdata with the other four and separately but no luck. Do we have any success stories and how we dis this correctly? Using Odin 1.13.3 patched version. Tried to downgrade but that failed.
Use 3.13 I believe
Rally517 said:
Use 3.13 I believe
Click to expand...
Click to collapse
Yes sorry typo error, 3.13.1_3B
Not trying to start a new thread with something similar so I'm just gonna post underneath this one. I have an AT&T S9 that is sim unlocked and all but, for the life of me I can't get it to work on Verizon. I've tried changing the bands in the *#*#3696#*#* menu and all I get is, is data. I tried flashing ARG7 unlocked I believe and it still booted with all the AT&T stuff loaded. The build number now shows ARG7 instead of ARG8. I don't know if there's a specific odin / firmware I need to flash in order to be able to get it right. I've been hunting for hours and flashing and I'm at a loss. Thank you guys in advance.
riyengarxda said:
okay hear's the deal, i am in the same boat moved to T-Mobile few days back and i have a Vzw branded S9+. i was of the opinion that things would workout great, but my area has poor t-Mobile network and i have been unsuccessfully attempted to flash TMB firmware on this phone. I have tried just about all combinations, and every-time the flash is done it boots back as a brand new Vzw phone and looks for a Vzw sim. I insert the TMB SIM and things work but not WIFI calling. Any leads?
Click to expand...
Click to collapse
All the carrier stuff is located in the CSC from the flash.
Side note: from what I've read, Verizon locks down the bands and whatnots that stop TMobile stuff from functioning, like WiFi calling.
I've seen people get it working but not the video calls.
thegreatkazoo said:
All the carrier stuff is located in the CSC from the flash.
Side note: from what I've read, Verizon locks down the bands and whatnots that stop TMobile stuff from functioning, like WiFi calling.
I've seen people get it working but not the video calls.
Click to expand...
Click to collapse
Thanks, I really don't care about video calls but WIFI calling is a real need.. any leads?
thegreatkazoo said:
All the carrier stuff is located in the CSC from the flash.
Side note: from what I've read, Verizon locks down the bands and whatnots that stop TMobile stuff from functioning, like WiFi calling.
I've seen people get it working but not the video calls.
Click to expand...
Click to collapse
All my functions work. Video calling etc etc. Unlocked s9. First I az on Boost mobile. Switched to metro. Flashed tmb everything works.
riyengarxda said:
Thanks, I really don't care about video calls but WIFI calling is a real need.. any leads?
Click to expand...
Click to collapse
There a thread around here that talks about how to get the TMobile services but WiFi calling is all they could get to work. You have to flash the CSC (home partition) from TMobile is what I've heard. I've also heard, you can put in a TMobile Sim and it'll just work. But, I think that might be limited to "factory unlocked" phones.
thegreatkazoo said:
There a thread around here that talks about how to get the TMobile services but WiFi calling is all they could get to work. You have to flash the CSC (home partition) from TMobile is what I've heard. I've also heard, you can put in a TMobile Sim and it'll just work. But, I think that might be limited to "factory unlocked" phones.
Click to expand...
Click to collapse
Do you have the thread link? I tried just about as many I could read up..
riyengarxda said:
Do you have the thread link? I tried just about as many I could read up..
Click to expand...
Click to collapse
I'm at work but I'll be off in a bit and I'll hunt it down once I get home.
If I'm not mistaking, it's the one that talks about flashing the u fw to the u1.
riyengarxda said:
Do you have the thread link? I tried just about as many I could read up..
Click to expand...
Click to collapse
https://forum.xda-developers.com/ga...n8-s8x-s9x-oreo-usa-t-mobile-efs-csc-t3772385
Here you go. There's a version 3 on OP web site. Look up my posts there.
Docmjldds said:
https://forum.xda-developers.com/ga...n8-s8x-s9x-oreo-usa-t-mobile-efs-csc-t3772385
Here you go. There's a version 3 on OP web site. Look up my posts there.
Click to expand...
Click to collapse
Read through all the 16 page thread and found very useful comments from you on usage of V3 detonator and Csc changer. I stand confused over just 2 questions;
1. Do I have to root my s9+ which is from vzw
2. It talks about F and FD variant while I have a u variant running snapdragon.
Show me some light .:angel:
riyengarxda said:
Read through all the 16 page thread and found very useful comments from you on usage of V3 detonator and Csc changer. I stand confused over just 2 questions;
1. Do I have to root my s9+ which is from vzw
2. It talks about F and FD variant while I have a u variant running snapdragon.
Show me some light .:angel:
Click to expand...
Click to collapse
I'm on Exynos S9 and rooted. Doubt this will work on a Snapdragon device. Sorry
Docmjldds said:
I'm on Exynos S9 and rooted. Doubt this will work on a Snapdragon device. Sorry
Click to expand...
Click to collapse
Yup exactly my taught... thank you for all the insights..
Have a very weird problem, and think it is because of any app...
I use a galaxy tab s4 lte as a phone, it is a fully functional phone oversized... it is great, and im using tablets as phone 3 or 4 years ago... first was galaxy tab s2 lte, then s3, and now s4
S2 worked great... S3 worked great but from march of this year, randomly phone disconects fron network just to receive calls.... sms, 4g and wifi always work, but canr receive calls till i make a call... it is like it disconnects from network... i notice that, because i have (from the times of s2) my phone forwarding calls to my wife's phone when my phone is turned off or im in a plane for example...
But with tab s3, from march, i was in home with my wife and someone that call me ringed directly to my wife phone... as if my phone was turned off...a lot of times saw that... but when i place a call... it start receiving calls again...
Went to tmobile, changed the sim and same problem...
Bought a new S4 lte ($1000) and from the day 1 same problem...
Any help? Im pretty sure it could be any app... but dont know where to start
Factory reset, then install your apps, one at the time until it happens again. It's long process but unless someone came across it it's the only way to find out which app causes it. Perhaps not the only way. Have you tried to replicate it? Reboot your tablet, then ring it to check if it receives it. If not, you can uninstall one app, reboot, call, uninstall , repeat until you find which app it is. It's likely quicker this way but you need to be able to replicate it.
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
I haven't thought about that. Try that first. I mean locking to 3G.
Too51oll said:
Factory reset, then install your apps, one at the time until it happens again. It's long process but unless someone came across it it's the only way to find out which app causes it. Perhaps not the only way. Have you tried to replicate it? Reboot your tablet, then ring it to check if it receives it. If not, you can uninstall one app, reboot, call, uninstall , repeat until you find which app it is. It's likely quicker this way but you need to be able to replicate it.
Click to expand...
Click to collapse
I have factory reset 3 times... same problem... when reset it works just fine... for a while....
1eStar said:
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
Click to expand...
Click to collapse
Sounds good... but would hate if this was the problem, dont want to root phone... anyway... s3 was working ok till march... one year worked great! Because of that i think it can be a setting or app... there is any way yo change volte? I have seen something like that in any menu but cant find now
Seeing about volte... i remember on s2, and on s3 im not quiete sure, the hd call icon, related to volte, bit now have not that option in phone app settings
Thanks
I don't think the tabs4 t835n makes calls over lte, only 3g as per the specs on the samsung site. Mine always reverts to 3g when making voice calls. It still sounds great but this is the way it makes or receives calls.
Continuous Talk Time (3G WCDMA) (Hours)
Up to 50
That being said, it would be great to find out if it is capable and since there is root now, take the settings from the note9 and push it to the tabs4 T835n.
Have you tried if it receives calls after reboot?
Too51oll said:
Have you tried if it receives calls after reboot?
Click to expand...
Click to collapse
yes it does... it receives calls after reboot, and after placing a call
1eStar said:
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
Click to expand...
Click to collapse
Friend... switching to 3g works great... this problem is on lte... it is possible to edit or flash csc without rooting? Would be possible to edit with s9 parameters? I mean, dont know if it has 10 lines of code or 10000! Just asking
Would like to fix it without rooting
wallyhenderson said:
Friend... switching to 3g works great... this problem is on lte... it is possible to edit or flash csc without rooting? Would be possible to edit with s9 parameters? I mean, dont know if it has 10 lines of code or 10000! Just asking
Would like to fix it without rooting
Click to expand...
Click to collapse
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
1eStar said:
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
Click to expand...
Click to collapse
Thanks for your quick reply friend... you mean i could flash s9 csc without any modification? Its safe to do that? Can i backup my actual csc just in case with odin? Thanks!
1eStar said:
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
Click to expand...
Click to collapse
that in the screenshot of the app you send me is exactly what i need to turn off i think...
wallyhenderson said:
that in the screenshot of the app you send me is exactly what i need to turn off i think...
Click to expand...
Click to collapse
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
3 Great ideas!... ask your carrier seem to be the best if they cooperate... flash csc is the second best because have not to reset phone.... and flashing a complete firmware from a different country is a great idea too but have to reinstall everything...
I think this was what happened with my S3... everything worked fine till i flashed a complete firmware from a different country when oreo update came...
Friend.. you help me a lot... really appreciate your help
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
F***... there is only one firmware for the T835N (i own a T835N)on Sammobile but 3 for T835C... will download all 4 firmwares and try to figure out if i can get the CSC file form a T835C...
PD: Do you know what is the difference between T835N and T835C?
Thanks again friend
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
One question... do i need to root before flashing CSC? or can flash it just as a complete firmware just using CSC slot?
Thanks
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
Its me again friend... sorry for bothering you so much!
Look... here is the think...
I have downloaded two full firmwares...
the T835NKOU1ARGH_T835NKOO1ARGH_KOO for the T835N (the only firmware sammobile has for T835N)
the T835CZHU1ARH3_T835CTGY1ARH3_TGY.zip for the T835C (the latest firmware sammobile has for T835N)
When i extracted the CSC from that two firmwares i saw they are differents sizes! T835C is more than double than T835N...
Look at the picture attached...
T835N CSC File
CSC_OMC_KOO_T835NKOO1ARGH_CL13953229_QB19044239_REV00_user_low_ship_MULTI_CERT.tar.md5
47MB
T835C CSC File
CSC_OMC_TGY_T835CTGY1ARH3_CL14074605_QB19357398_REV00_user_low_ship_MULTI_CERT.tar.md5
112MB
What do you think about this? would be safe to flash a file, from other device with double the size...
It is the only thing i can do (talking about flashing other CSC) because on Sammobile there is only one complete firmware for the T835N... is not like other phones that you can choose country... the only country is korea
Thanks in advance....
wallyhenderson said:
One question... do i need to root before flashing CSC? or can flash it just as a complete firmware just using CSC slot?
Thanks
Click to expand...
Click to collapse
I believe if you flash only the HOME_CSC it will preserve your data.
You don't need root
First up though, I would strongly recommend you try to back up your data using Samsung Smartswitch (back up to SD card). And try to back up to Samsung Cloud (not sure if this still is a thing). So you can restore when things go pear shaped
I believe the chances of getting VoLTE working faultlessly on your Korean tab are pretty close to 0. But if that's what you want, I would first try flashing a known working CSC from a device with same android version on YOUR carrier (Note 9 maybe?). This is unlikely to work, I think Samsung has been encrypting CSC files recently. You may need to flash Korean firmware at this point.
Secondly, I'd try flashing an alternate csc_home package from another country. Try the one you've downloaded. If you search T835 on sammobile there are many countries listed. I'd try XSA Australia if the first one doesn't do what you want.
You're on your own my friend.
If all this is getting too hard, just leave your tab locked to 3g in it's current state.
1eStar said:
I believe the chances of getting VoLTE working faultlessly on your Korean tab are pretty close to 0.
Click to expand...
Click to collapse
I dont want to getting work VoLTE... i want to switch off buttt... not setting phone in 3G... setting it in 3G implies i will not be able to make good whatsapp video calls... skype calls... stream tv... ando... or at least nos to foas as stayong in LTE but with VoLTE turned off
1eStar said:
But if that's what you want, I would first try flashing a known working CSC from a device with same android version on YOUR carrier (Note 9 maybe?). This is unlikely to work, I think Samsung has been encrypting CSC files recently. You may need to flash Korean firmware at this point.
Click to expand...
Click to collapse
You mean that a Note 9 CSC should work? I mean is better for you i try a Note9 CSC than a T835C one?
1eStar said:
If you search T835 on sammobile there are many countries listed. I'd try XSA Australia if the first one doesn't do what you want.
Click to expand...
Click to collapse
Friend for the T835N (the phone i own) on Sammobile there are only 1 firmware... for th T835C there are 3... these two devices are LTE... but for the T835 you see a lot... but they are only wifi... do you say a wifi device from XSA australia will have CSC file? Im confused
1eStar said:
You're on your own my friend.
Click to expand...
Click to collapse
I know dont worry... really appreciate your help but dont worry i didnt blame you if anything goes wrong...
1eStar said:
If all this is getting too hard, just leave your tab locked to 3g in it's current state.
Click to expand...
Click to collapse
Would hate have a great 4G device stuck in 3G... in the last case will root it and edit the CSC with the app you send me but im not sure root is working ok because had not time to read the tutorial and will be a pain in the a** start from zero with more tha 200 apps... a lot of passwords and more than 70gb of data (i own the 256gb model)
Again friend thanks for your help is really helpfull