Develop Bugs

[Q] Network Issue with rooted T-Mobile Galaxy S3

So I've had this phone for over two week now, and I rooted it and flashed it with FrostyJB v5. Everything was running well (excluding the battery life, which was better in v4 but that's a different topic). I was at my school connected to their wifi earlier tonight and when I left school, I can't make any phone calls (i have a circle with a slash through it where my signal bar would normally be). I think it has something to do with my APN or network or something? I'm honestly new to this. I would appreciate it if some one could help me solve this problem. The phone is a T-Mobile phone, which I bought from a T-Mobile dealership. The SIM was working properly until tonight. I tried removing the SIM and rebooting, putting the SIM back in, rebooting. etc.
TLDR: My 4G doesn't work, I'm not connected to any APN, my phone is rooted and flashed with FrostyJB v5 but I bought it from a T-mobile dealership with a T-mobile sim card. Help. Please.
I can provide addtional information if needed

Is your imei still there? Check it in settings/about phone. And are you sure airplane mode is not checked? Were you doing anything developement wise when it went out?
sent via galaxy s3 in boss mode @ 2.1ghz

tgamble160 said:
Is your imei still there? Check it in settings/about phone. And are you sure airplane mode is not checked? Were you doing anything developement wise when it went out?
sent via galaxy s3 in boss mode @ 2.1ghz
Click to expand...
Click to collapse
my imei is still there. it is not in airplane mode. I can't connect to my 4G or my T-Mobile network. I was not doing any development when it suddenly turned off. I was walking out of my school around 11:00pm CST (if it helps, I get no reception at my school's building). I turned my wifi off and turned my 4G on via drop down menu and it wouldnt connect. I tried rebooting my phone several times, using HOT BOOT and REBOOT.

Can an mod/admin close this thread out? I solved the issue. You need to turn off wifi calling for it to work. dur. sorry

AT&T Note II sporadic no signal and phone number

I appreciate any help I can get.
So I tried Cleanrom and now paranoid android. I also tried doing the T Mobile aws mod. I've reverted back to the backup I had because after doing the T mobile mod I was getting sporadic disconnects from the cell network. Now I'm on AT&T and it seems when the phone goes into sleep mode and I turn it on the signal shows no bars. Then a few minutes later its connected. I've researched and found some info regarding the imei and efs partition. I have no files in the efs folder on the sd card and my imei number is correct in the status in the phone settings. Funny thing is sometimes under status sometimes it says phone number unknown.
I have no idea what I should do at this point.
Thanks

Did you flash the phone back to stock with Odin and a stock tar file?
Sent from my Samsung Galaxy Note II via AT&T LTE

done12many2 said:
Did you flash the phone back to stock with Odin and a stock tar file?
Sent from my Samsung Galaxy Note II via AT&T LTE
Click to expand...
Click to collapse
Actually yes. I used the note II toolkit and downloaded the stock romantic from Odin. Problem I had was it wouldn't boot so I tried paranoid android. But even before this when I had the T mobile simple I was having the same issues.

There are times when I flash back to stock that I have to do another FULL wipe after the flash.
I flash the stock ROM via Odin. When and if it hangs during bootup, I simply pull the battery and reinstall it. I immediately boot into the stock recovery and do a full factory and cache wipe. Reboot and I'm back in the fight.
Sent from my Samsung Galaxy Note II via AT&T LTE

That worked. Thank you. But I still seem to be having trouble with the modem, or I'm assuming it's the modem. The signal jumps very sporadically from 4G to G to 3G then no cellular signal at all. It's weird and starting happening in the last week or so. My wife tried calling me 4 times throughout the day and they never came through. Funny thing is if I use the phone for a few minutes the signal will come back for a little bit then disappear.

Have you tried moving the SIM card around? shifting it slightly to the left or right and see if you get signal again?

amartins02 said:
That worked. Thank you. But I still seem to be having trouble with the modem, or I'm assuming it's the modem. The signal jumps very sporadically from 4G to G to 3G then no cellular signal at all. It's weird and starting happening in the last week or so. My wife tried calling me 4 times throughout the day and they never came through. Funny thing is if I use the phone for a few minutes the signal will come back for a little bit then disappear.
Click to expand...
Click to collapse
QwaarJet said:
Have you tried moving the SIM card around? shifting it slightly to the left or right and see if you get signal again?
Click to expand...
Click to collapse
Not the sim card. Seen this issue on SEVERAL Note 2`s... Its the NEWEST AT&T modem that caused this issue and usually flashing back to the old one still doesnt help. I got mine replaced and it fixed it!

[Q] No data connection 4G/2G/E

Hey guys, I picked up a new Samsung Galaxy S II (T-Mobile) about a month ago from the retail store.
About a week ago I was using my phone as a hotspot for my xbox and then I got disconnected while playing. I wondered what was the problem and I saw the data icon was in the no connection state. Now I restarted the phone in case it was the simple loss of signal bug but it wasn't. My data wasn't coming back on. No matter what I did the connection wouldnt come back on. I called the tmobile tech support and they gave me rubbish things such as reboot phone, take out battery and wait 20 seconds, and all that jazz. I then noticed a pattern starting with my phone, the phone would connect to 4g then a second later disconnect. It would repeat this all day and not change to anything else. If anyone can help with this problem it would be greatly appreciated.
Android 4.04 NO ROOT/FLASH (stock)
Galaxy S2 T989 T-Mobile
Thanks -Frezno

ajajjaj
Call up t mobile and beg them to reconnect your data
Sounds like you was blocked

Freznosis said:
Hey guys, I picked up a new Samsung Galaxy S II (T-Mobile) about a month ago from the retail store.
About a week ago I was using my phone as a hotspot for my xbox and then I got disconnected while playing. I wondered what was the problem and I saw the data icon was in the no connection state. Now I restarted the phone in case it was the simple loss of signal bug but it wasn't. My data wasn't coming back on. No matter what I did the connection wouldnt come back on. I called the tmobile tech support and they gave me rubbish things such as reboot phone, take out battery and wait 20 seconds, and all that jazz. I then noticed a pattern starting with my phone, the phone would connect to 4g then a second later disconnect. It would repeat this all day and not change to anything else. If anyone can help with this problem it would be greatly appreciated.
Android 4.04 NO ROOT/FLASH (stock)
Galaxy S2 T989 T-Mobile
Thanks -Frezno
Click to expand...
Click to collapse
I had the same issue a few weeks ago. It was the SIM card. I only had the phone for 2 weeks and got a new sim card when I got the phone. It just went bad. Go to a corporate Tmo store and get a new card. They will give you one for free.

I have this same problem with my SGH-T989.
I'm running CM 10.1.3 (Android 4.2.2), and it's vendor unlocked (used to be a Rogers phone) now on the TELUS network.
Data will randomly disconnect, but I still have all signal bars in grey. A reboot will enable it again, or sometimes it just comes back on it's own. I've been to the cell booth in the mall and they've swapped out a SIM card for me, no change.
I also noted that when the data isn't working, my WIFI doesn't seem to either. Modem issue? How can I tell what modem I have and what would be best? I assume CM 10 comes with it's own modem for this phone and when I flash CM it writes the modem too?
thanks for any help.
Andrew

asutherland said:
I have this same problem with my SGH-T989.
I'm running CM 10.1.3 (Android 4.2.2), and it's vendor unlocked (used to be a Rogers phone) now on the TELUS network.
Data will randomly disconnect, but I still have all signal bars in grey. A reboot will enable it again, or sometimes it just comes back on it's own. I've been to the cell booth in the mall and they've swapped out a SIM card for me, no change.
I also noted that when the data isn't working, my WIFI doesn't seem to either. Modem issue? How can I tell what modem I have and what would be best? I assume CM 10 comes with it's own modem for this phone and when I flash CM it writes the modem too?
thanks for any help.
Andrew
Click to expand...
Click to collapse
Flashing a ROM usually does not touch the radio. Newer ROMs(4.2.2 and later) need either the UVMC6 or TLMC4 radio from here:
http://forum.xda-developers.com/showthread.php?t=1895400

[Q] ace 2 network problems

Hello
I've just bought a new galaxy ace 2 and I am experiencing some problems.
When I'm using only gsm network type (i think, now I'm testing HDSPA), typically, when I'm logged on icq, mobile sometimes loosses signal and displays there is no service. After few seconds is everything OK and network is back at full singal. This can be seen also in battery usage view, when I'm having always yellow line with thin red places.
I'm now using it with mixed mode on HDSPA and there are no problems with network.
The phone is under warranty, so there is no problem, but I dont have much time and first I would try other solution. I tried to flash it with odin to same fw, but no change. I tried to google it but I didnt find any solution. Could you give me advice?
Thanks for answers

Odp: [Q] ace 2 network problems
Check phone with another sim card (another operator, wipe phone - go back to stock settings)
Sent from my Ace 2 using xda premium

Thanks for reply, I'll try
Today I was all time on HDSPA a there was no problem

Had this problem before I updated to 4.1.2. Use to happen on trains for some reason as well.

Yeah I've same paroblem with a specific operator.(stock GB rom)

still experiencing that problem, any more ideas?
no problems when 3g or data connection off
thinking about installing mc8 but I'm not sure, because I've a 8160P version

I also have problems with mobile data. I have done everything :factory reset, flashed roms, and finally fid solution yesterday but i have problem again . My mobile data doesnt work no any type of network and do icon
Please somebody help !

Stevk said:
Had this problem before I updated to 4.1.2. Use to happen on trains for some reason as well.
Click to expand...
Click to collapse
Well the "train" issue is due to the train being like a faraday cage, blocking the various microwave signals, the reason you get a signal on a train is because they have amplifiers to retransmit the signal into the train and vice versa.

...what network?

I have problem with mobile data. Apn: ERONET START (gprs.eronet.ba) i can acess with other phone on my sim card. Problem is in my phone but i dont know how to solve it. I can send messages and call but no any sign of data
Sent from my GT-I8160

Calling issues

Just wanted to see if anyone else has been experiencing this or maybe knows a way to fix this. I have 2 issues with the phone calling on this phone. I had the 925T since launch and never had an issue with it. ever since i sent it in for repair, I've had a strange issue. Fist one is dialing out. When attemting to make a call, it takes anywhere from 3 seconds to 40 seconds before the call actually gets connected. this is highly annoying as i dial a number and it feels like forever before the call actually connects. my other issue is after the phon ehas been one for a few hours, I dont get any incoming calls. the phone will not show me any incoming calls at all so I don't even know when someone calls me. Ive tried everything i can. tried changing sim cards, updated the bootloader and modem, tried different roms, kernels, stock odin, everything. and its the same story no matter what I do. Anyone Have an idea of what it could be? It only works well after a fresh reboot. calls works without issues. hours later, problem comes back

I've had the same exact problem but I attributed it to using an AT&T Sim card on an unlocked T Mobile phone.
I've now rooted and installed Xtrostolite Rom with latest modem and bootloader. I've yet to have any issues. Good luck.

Anyone else have this issue?

I have this issue. It seems if i leave wifi off i do not ever have this issue. I live in a crappy coverage area so i have to have wifi on at home. I just reboot when i leave. I hate this phone....

btothec said:
I have this issue. It seems if i leave wifi off i do not ever have this issue. I live in a crappy coverage area so i have to have wifi on at home. I just reboot when i leave. I hate this phone....
Click to expand...
Click to collapse
You think the problem is WiFi related?

Yes. If i leave wifi off i never have the issue.

Still is happening. whether I have wifi on or off it always happens. It seem,s to be an issue related to VoLTE. When I turn LTE off, the issue dissapears. Updated baseband and bootloader to latest version and issue is still there. Have a custom rom and the issue is still there. go back to the tmobile rom and the issue is still there. thinkiing of going back to a tmobile firmware and turning off VoLTE in the firware then reflashing back to custom rom and seeing if that helps. if not, im selling the phone and getting the F version of the regular S6 and calling it a day. im done with carrier branded phones.

Interesting enough I haven't had this issue in the last 3 to 4 days. I wonder if it is AT&T related.

I have this issue. All the time. Unlocked from tmo, using straight talk at&t. This phone is the worst.

Anyone not on AT&T network having this issue?
I wonder if flashing the AT&T modem on TMO model will help.

cbutt said:
I have this issue. All the time. Unlocked from tmo, using straight talk at&t. This phone is the worst.
Click to expand...
Click to collapse
Maybe you should get a phone from att.
If att service is better than tmobile then maybe there phone is better than tmobile's phone.
Pp.

PanchoPlanet said:
Maybe you should get a phone from att.
If att service is better than tmobile then maybe there phone is better than tmobile's phone.
Pp.
Click to expand...
Click to collapse
I've been able to switch between carriers on any phone that has the supported bands since the galaxy s2. The issue is with this phone. My mistake in buying it.

Please help!

same thing here its unbearable, using latest unibase and xtrestolite

I have tried a few roms and a few kernels. I have tried differ apns but att Sim in this phone doesn't work like it should. I was going to get a TMOBILE note 5 to use on att but now I know it's not worth the risk.

@stu5797, yea man, I wish I had a solution. I'm happy it's not just me, but pretty bummed that there seems to be no answer other than it just doesn't work properly.

I've noticed the issue only happens during peak hours. Can anyone confirm?

I was having similar problems after the 5.1.1 update so after a few troubleshooting sessions with TMO, they sent me a new phone. 2 weeks now and no more problems. First phone that I have not rooted and flashed..... I was also told by a store rep that a lot of people were having issues since TMO is upgrading towers for 12 band.

osmosizzz said:
Just wanted to see if anyone else has been experiencing this or maybe knows a way to fix this. I have 2 issues with the phone calling on this phone. I had the 925T since launch and never had an issue with it. ever since i sent it in for repair, I've had a strange issue. Fist one is dialing out. When attemting to make a call, it takes anywhere from 3 seconds to 40 seconds before the call actually gets connected. this is highly annoying as i dial a number and it feels like forever before the call actually connects. my other issue is after the phon ehas been one for a few hours, I dont get any incoming calls. the phone will not show me any incoming calls at all so I don't even know when someone calls me. Ive tried everything i can. tried changing sim cards, updated the bootloader and modem, tried different roms, kernels, stock odin, everything. and its the same story no matter what I do. Anyone Have an idea of what it could be? It only works well after a fresh reboot. calls works without issues. hours later, problem comes back
Click to expand...
Click to collapse
Are you still having this issue? I have the same issue and the same phone but mine is unlocked and working on cricket network. So yeah same problem taking forever to connect a call and no receiving calls mos of the time. No ring no notification of missing call. I been doing some research and find a temporary fix. Try going to settings -mobile networks and switch from lte/wcdma/gsm to wcdma/gsm or gsm only. But before do a test. Turn off data and try to make a call see how fast it connects then have someone to call your phone. If it works then this trick will work for you. Of course you gotta sacrifices lte speed . Basically having 4g only but at least will fix your calls. These problems seem to ve related to volte i been trying to disable it but there is no such option under phone app setting. I just dont have it. (I cann show some screen shots) so if someone knows a secret code or app whatever to turn it off i will appreciate it. My phone is a t mobile galaxy s6 edge.
PHP:
---------- Post added at 11:00 PM ---------- Previous post was at 10:45 PM ----------
stu5797 said:
I have tried a few roms and a few kernels. I have tried differ apns but att Sim in this phone doesn't work like it should. I was going to get a TMOBILE note 5 to use on att but now I know it's not worth the risk.
Click to expand...
Click to collapse
Try this..
Are you still having this issue? I have the same issue and the same phone but mine is unlocked and working on cricket network. So yeah same problem taking forever to connect a call and no receiving calls mos of the time. No ring no notification of missing call. I been doing some research and find a temporary fix. Try going to settings -mobile networks and switch from lte/wcdma/gsm to wcdma/gsm or gsm only. But before do a test. Turn off data and try to make a call see how fast it connects then have someone to call your phone. If it works then this trick will work for you. Of course you gotta sacrifices lte speed . Basically having 4g only but at least will fix your calls. These problems seem to ve related to volte i been trying to disable it but there is no such option under phone app setting. I just dont have it. (I cann show some screen shots) so if someone knows a secret code or app whatever to turn it off i will appreciate it. My phone is a t mobile galaxy s6 edge

Didn't work for me. I turn off data and I still have to wait until the call goes through