[Q] GSM Signal loss - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

My mobile loss gsm signal when left ideal, Im not able to make/receive call neither able to send/receive sms.
If I restart my mobile Im able to receive call/sms, but than after some time again signal are loss but strange
thing is that My phone showing full bar all the time.
The sim Im using is working perfectly fine on other mobiles. I also tried re-inseting SIM
I tried restoring my mobile but it didn't work.
Anyone please help me fixing this problem
Thanks
​Mobile Details
Samsung -sgh -I747
Android Version 4.3
Baseband version
I747UCUEMJB
Kernal version
3.0.31-2024954
[email protected]#1
build number
JSS15J.1747UCUEMJB

BUMP

Are you able to switch the network type to wcdma only?

There was no option of changing network type in Setting
So I used the code *#*#4636#*#* and change it to GSM only, WCDMA
But it some times work for 5 to 10 minutes and after that even though my mobile shows full signal bar but i'm neither im able to receive call/sms nor able to send.

BUMP

I'm not sure but maybe you could try to run an OTA update to update the ROM, bootloader, and modem to KK.

audit13 said:
I'm not sure but maybe you could try to run an OTA update to update the ROM, bootloader, and modem to KK.
Click to expand...
Click to collapse
Can u please guid me on how to do that.

If you are running a stock ROM, connect to wifi, go to settings about software updates.

audit13 said:
If you are running a stock ROM, connect to wifi, go to settings about software updates.
Click to expand...
Click to collapse
I dont know if Im running a stock ROM, but I tried to update software under setting but it says I have latest verison

Related

Galaxy Nexus ANDROID REVOLUTION ROM Virgin Austrlia

I have a Galaxy Nexus GSM on Virgin Australia network (optus).
I flashed the Android Revolution 2.1.2 GSM Rom onto my phone this afternoon and have lost data connection (ie hspa) but still have voice/sms connection.
is it because the baseband has been changed to the european one (kk6) and i need to change it to antoher one?
aurnob88 said:
I have a Galaxy Nexus GSM on Virgin Australia network (optus).
I flashed the Android Revolution 2.1.2 GSM Rom onto my phone this afternoon and have lost data connection (ie hspa) but still have voice/sms connection.
is it because the baseband has been changed to the european one (kk6) and i need to change it to antoher one?
Click to expand...
Click to collapse
Check your APNs and see if you have the correct ones listed.
My guess would be baseband but go to settings, mobile networks and try to reload the default APNs. Happened to me recently and reloading the default APNs did the trick. Hope you get it sorted.
Now the phone can't send sms or utilise data, this is after I realised I didn't use superwipe before flashing the rom.
Now I used superwipe and flashed again, and lost sms capability.
I flashed back to google rom but same issue.
Fixed the data issue.
Need to know how to fix the smsc ISSSUE NOW
XXKK6 baseband will not be the issue. Its a pentaband phone and the radio supports that. Search for Virgins APNs and also try playing with the radio network default. Dial *#*#4636#*#* and select Phone information then hit the 3 dots and select radio network
EDIT just read your last comment. Ignore my post
Sent from my Galaxy Nexus using xda premium

[Q] [HELP] Problem with network (R800i GSM)

Greetings!
I managed to get myself a used Xperia Play R800i (I'm from Bangalore, India).
It came with a Custom ROM and it didn't take my Vodafone IN SIM.
Hence I flashed 'R800i_4.0.2.A.0.62_phoenixvendor.ftf' using the Androxyde Flash toolkit.
It still didn't take Vodafone but it took Airtel IN.
Hence I started flashing other ftf's but obtained the same results.
I then decided to stick to Airtel for time being and look for a solution.
I currently run on Lupus JB kernel with SuperJB v7.
On this ROM I came across the baseband version in "About Phone".
It is as follows "8X5AA-AAABQMAZM-20302204-36"
I guess its running on baseband 36.
Also there is a weird thing that happens, at home I get no problem making voice calls (2G mode) but as soon as I take it out I randomly lose the ability to make outgoing calls even though the signal status shows full reception. I can though, send SMSs and establish EDGE connection.
Can the baseband be the cause?
If so, where do I find other Baseband files and how do I flash?
Any help in this regard is much appreciated!
Thanks in advance!

[Q] No cellular data after root, custom rom and recovery?

I received a used s3 which had stock 4.3 , modem/bootloader mjb, and knox. I rooted, removed knox and installed slim 4.4.4 rom, lean 4.4.4 kernel and latest philz. All running ok
including cell calls to/from, mms, apps and wifi data. Same modem/bootloader (MJB), IMEI available However cellular data will not connect and or transmit/receive using att, phone or lte APN.
Any help/thoughts appreciated?
Have you updated the bootloader and modem to kk?
audit13 said:
Have you updated the bootloader and modem to kk?
Click to expand...
Click to collapse
My research suggested that the modem mjb and bootloader mjb did not have to be updated if cell calls and sms were working. Also I have an older S3 with modem mjb and bootloader mg2 and the same rom and kernel
that was working fine.
??
Can you manually add the APN? Have you tried other KK custom ROMs?
audit13 said:
Can you manually add the APN? Have you tried other KK custom ROMs?
Click to expand...
Click to collapse
I just added an APN, tested and deleted it. I was holding off changing roms because it seems to me that this might be an ATT cell data network registration problem in which the choice of ROM is
irrelevant.
When you added the APN, were you able to connect to ATT?
audit13 said:
When you added the APN, were you able to connect to ATT?
Click to expand...
Click to collapse
Not for data, cell calls and sms work.
Are any APNs present in the phone? With every custom ROM I have installed on a phone (i747m, Atrix HD, Nexus 4, Galaxy Nexus, LG Optimus G), the APN was always automatically added.
audit13 said:
Are any APNs present in the phone? With every custom ROM I have installed on a phone (i747m, Atrix HD, Nexus 4, Galaxy Nexus, LG Optimus G), the APN was always automatically added.
Click to expand...
Click to collapse
Yes, there were att based apns labeled phone, att, lte, broadband, attactivate and two for smarttalk. I have tried the phone, lte and att apns and they all fail.
This is strange that it can't connect the ATT data network. Is ATT's data network functioning properly in your area? Are you able to try your sim in another phone?
audit13 said:
This is strange that it can't connect the ATT data network. Is ATT's data network functioning properly in your area? Are you able to try your sim in another phone?
Click to expand...
Click to collapse
I just tested the ATT data network with another sim and phone. AOK. Unable to easily test with the same sim due to a std/micro sim card mismatch. Will be able to
do that after 6p cdt today.
Weird, I would suggest creating a nandroid backup of your current ROM and try another ROM.
Do you have a link to the ROM you installed?
audit13 said:
Weird, I would suggest creating a nandroid backup of your current ROM and try another ROM.
Do you have a link to the ROM you installed?
Click to expand...
Click to collapse
Here is a link to the main d2lte download page. I downloaded the 7.0 version as my searches showed some instability in later releases .
http://slimroms.net/index.php/downloads/dlsearch/viewcategory/1183-d2lte
kwmike said:
Here is a link to the main d2lte download page. I downloaded the 7.0 version as my searches showed some instability in later releases .
http://slimroms.net/index.php/downloads/dlsearch/viewcategory/1183-d2lte
Click to expand...
Click to collapse
Will have to hold for now on another rom install due to external issues.
I don't see any assert lines in the ROM's updater-script file. I also noticed that it has been updated since Aug 5.
audit13 said:
I don't see any assert lines in the ROM's updater-script file. I also noticed that it has been updated since Aug 5.
Click to expand...
Click to collapse
Not knowledgeable enough to understand assert impact. Also held off on later version due to thread discussion about instability.
The only thing left to do seems to be trying another ROM. If that doesn't solve the issue, it may be a defective sim card or possible hardware issue.
audit13 said:
The only thing left to do seems to be trying another ROM. If that doesn't solve the issue, it may be a defective sim card or possible hardware issue.
Click to expand...
Click to collapse
Have to go on hold for a while now.
Thanks for the efforts
Any other thoughts/help appreciated!!
If you get it solved, let us know how you did it.
Sorry I couldn't solve the problem for you.
Cheers
Resolved. By removal of lean kernel and extensive correction of ATT registration data. Thanks for the help
Sent from my SGH-I777 using XDA Free mobile app

NOT Registered to network after upgrade / cannot call and cannot send sms

good morning! can someone really help me? i have upgraded the firmware of my Gt-N7100 from 4.1 to 4.4 but after flasing, my mobile cannot register on the network anymore. Then i tried downgrading, from 4.4 to 4.3 but its still cannot I connect to the network. Just now i tried to upgrade it again to 4.4 but still doesnt work. it has signal on but everytime i call it says not registered on the network. It also has signal even i remove my battery. I am really bothered. does my phone broken already? i am from the Philippines and the firmware i have now is N7100XXUFNG4_N7100OLBFHG1_SMA, all the firmware i used came here from sammobile. can someone please help me...
flegisma08 said:
good morning! can someone really help me? i have upgraded the firmware of my Gt-N7100 from 4.1 to 4.4 but after flasing, my mobile cannot register on the network anymore. Then i tried downgrading, from 4.4 to 4.3 but its still cannot I connect to the network. Just now i tried to upgrade it again to 4.4 but still doesnt work. it has signal on but everytime i call it says not registered on the network. It also has signal even i remove my battery. I am really bothered. does my phone broken already? i am from the Philippines and the firmware i have now is N7100XXUFNG4_N7100OLBFHG1_SMA, all the firmware i used came here from sammobile. can someone please help me...
Click to expand...
Click to collapse
How did you flash the firmware? Using ODIN or recovery?
Do you have a nandroid backup? If yes, restore that backup & see where you go.
Ravi.

Need some advice and help...

Hello. I hope you can help me resolve some issues...
I have the samsung sgh-i747m version. I originally had it rooted on stock 4.4.2 and working with a knowroaming sim. The knowroaming sim would either connect to Rogers, Telus or Bell depending on the signal strength. Mainly Bell in my case. Anyways, I use the sim for whatsapp and it was giving me issues. Namely, notifications would stop working after the phone sits for a while. I read that it might be a problem with 4.4.2 so I decided to update it to 6.0.1. Reason I chose 6.0.1 is because the guide uses the same recovery as I do (CWM) and I'm guessing that since most development has moved on to 7.1, 6.0.1 should be stable?
Anyway, I flashed the ROM and everything seems to work fine except my knowroaming sim no longer works. In other words, it doesn't connect to any network Rogers, Telus, or Bell. For some reason, when I go search for networks, it always says no networks found. So I popped in my Telus sim from my other phone and it connected to the network fine but again, searching for networks shows no networks. I think knowroaming doesn't connect because it can't find any networks either. So I spent some hours looking to see what the problem is and some of the jargon is starting to confuse me and making me hate Samsung for the things they do.
I managed to download an app called Phone Info *Samsung* and I will list the information here and maybe you can tell me what is going on:
If you have any suggestions on what I should do to get the network providers showing up, then I'm all ears. If updating to a 7.1.2 rom will fix this issue, I'll gladly do it.
Thanks.
Nobody?
Replace Cwm with twrp and try a different custom ROM?
I tried the octa-m rom 7.1.2 and still the same thing. I'm going to go back to stock and try again.

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