LTE and 3G not working anymore on G930T - General Questions and Answers

Hello guys,
I got a Samsung Galaxy S7-G930T T-Mobile, and since yesterday, 4g and 3g aren't working anymore and my phone is showing 2g only...
I have already checked the settings and it is on LTE/3G/2G, and I have also checked the APN settings and they are good..
I have done a factory reset = didn't work
I have reinstalled the firmware = didn't work either..
I have checked if it was the SIM card problem by testing it on another 4g phone, and 4g worked perfectly..
The problem on my phone is that when i'm trying to force 3g only or 4g only, I lose all the signal (i can't even make phone calls) until I use 2g again..
So the problem is that my phone isn't supporting 3g or 4g anymore but only 2g..
Phone model number: SM-G930T
Android version : 7.0
Baseband version: G930TUVU4BQG5
Build Number : NRD90M.G930TUVU4BQG5
Thank you guys for helping me..

were u able to resolve it. i'm in a similar situation
penaimr said:
Hello guys,
I got a Samsung Galaxy S7-G930T T-Mobile, and since yesterday, 4g and 3g aren't working anymore and my phone is showing 2g only...
I have already checked the settings and it is on LTE/3G/2G, and I have also checked the APN settings and they are good..
I have done a factory reset = didn't work
I have reinstalled the firmware = didn't work either..
I have checked if it was the SIM card problem by testing it on another 4g phone, and 4g worked perfectly..
The problem on my phone is that when i'm trying to force 3g only or 4g only, I lose all the signal (i can't even make phone calls) until I use 2g again..
So the problem is that my phone isn't supporting 3g or 4g anymore but only 2g..
Phone model number: SM-G930T
Android version : 7.0
Baseband version: G930TUVU4BQG5
Build Number : NRD90M.G930TUVU4BQG5
Thank you guys for helping me..
Click to expand...
Click to collapse

Related

[q] telus update 2.3.6 (no service)

Hey there,
I'm with TELUS (Canadian provider) and I have the nexus s, there was an update on my android and then after that... my phone didnt have any service! It wouldnt let me find TELUS network selection or manual selection and no service wouldnt able to show except wifi works... so I'm guessing google gave me the wrong update for my phone or what? I tried to research for HOURS and nothing.. its really annoying..
Android Version 2.3.6
Baseband Version NO DGSXXXKF1
BUILD # GRK39F
its not rooted or anthing... just a stock software... hope someone can help me out there... really appericate it
keegygti said:
Hey there,
I'm with TELUS (Canadian provider) and I have the nexus s, there was an update on my android and then after that... my phone didnt have any service! It wouldnt let me find TELUS network selection or manual selection and no service wouldnt able to show except wifi works... so I'm guessing google gave me the wrong update for my phone or what? I tried to research for HOURS and nothing.. its really annoying..
Android Version 2.3.6
Baseband Version NO DGSXXXKF1
BUILD # GRK39F
its not rooted or anthing... just a stock software... hope someone can help me out there... really appericate it
Click to expand...
Click to collapse
This worked for me, at least as far as data goes - in the same place where you choose network operators, choose the option for "access point names" then, when there, if there is no option for Telus, try pressing the menu button and clicking the option for "new APN" then in the fields enter the following:
- Name : TELUS
- APN: sp.telus.com
- Proxy: 74.49.0.18
- Port: 80
And then press the menu button again, hit save, and click the APN out of the list to connect.
That helped when I couldn't connect to Koodo, and they're the same network.
Hope this helps!
keegygti said:
Hey there,
I'm with TELUS (Canadian provider) and I have the nexus s, there was an update on my android and then after that... my phone didnt have any service! It wouldnt let me find TELUS network selection or manual selection and no service wouldnt able to show except wifi works... so I'm guessing google gave me the wrong update for my phone or what? I tried to research for HOURS and nothing.. its really annoying..
Android Version 2.3.6
Baseband Version NO DGSXXXKF1
BUILD # GRK39F
its not rooted or anthing... just a stock software... hope someone can help me out there... really appericate it
Click to expand...
Click to collapse
Hi, Did you manage to find a solution. I have a Nexus S 9020T and been using it fine under Fido/Rogers (WIthout 3G). Now that I moved swapped SIM to TELUS. it won't detect the TELUS network or connect to any. Any help would be appreciated.
Seeing how it says no radio you probably have to flash a radio for the i9020a, most likely UCKF1.
Sent from my Nexus S using XDA App
Provider: TELUS
version: 4.0.3
Baseband: I9020XXKI1
Build: IML74K
Phone was working perfectly fine before the switch to Telus. Even after reinserting the Fido SIM, phone will not connect to network.
Please assist.
My dads with telus... put his sim in my phone and no service but my rogers sum is still working fine... weird :S
Sent from my Nexus S using XDA App

Help needed for CDMA data service (downgrading from 4.4.2 to lower version)

I have a Samsung Galaxy S3 SCH-I535 CDMA Verizon & GSM phone. Originally it was on android 4.1.2 and working fine for both CDMA and GSM (one at a time). CDMA EVDO Rev A data service was working fine.
I am using this phone in Nepal (not in USA). It was carrier unlocked for both CDMA & GSM when I purchased from Amazon. (so, I guess, Originally it may had some customized firmware/ROM for International use, I don’t have much idea).
I was asked for firmware upgrade every time when I run Samsung Kies. One day I clicked to upgrade the firmware. The upgrade was over successfully. But the new android version I found on my phone was 4.4.2.
In this version /new upgrade, I was unable to use CDMA data (EVDO-rev A). So I wanted to reverse back to old version. I search the process in Google and tried to load firmware with the help of Odin3 using this file:- “I535VRBMF1_I535VZWBMF1_VZW.zip”, but it was not successful. Result: Fail(Auth)
Then I loaded firmware for 4.4.2 using Odin3.09 (AP: “I535VRUDNE1_I535VZWDNE1_I535VRUDNE1_HOME.tar.md5”) and now the phone is working.
• If I use GSM SIM I can make call and use HSPA data service as well by adding new APN.
• If I use CDMA RUIM I can make call, BUT DATA SEVRICE using CDMA EVDO Rev A is NOT WORKING!! (I can not save APN in this case).
Now my issue is how to make CDMA EVDO data service working in my phone, because my basic requirement is to use this phone for CDMA service (voice + data).
I can edit the APN but when I click “Save”, nothing was saved. So I can not select APN for my carrier. I tried using APN Manager Pro too, here I can enter & enable the APN, but did not work. The phone is not able to dial the data access code #777 (verified from CDMA service provider side trace).
Can someone help me what I should do to make my phone working for CDMA data. My phone is rooted.
I guess it may work for CDMA data if I downgrade it to 4.3 or 4.1.2,
Can I do that. If so what are the procedures / steps. Any help in this regard would be highly appreciable.
My data worked this way
kkafle said:
I have a Samsung Galaxy S3 SCH-I535 CDMA Verizon & GSM phone. Originally it was on android 4.1.2 and working fine for both CDMA and GSM (one at a time). CDMA EVDO Rev A data service was working fine.
I am using this phone in Nepal (not in USA). It was carrier unlocked for both CDMA & GSM when I purchased from Amazon. (so, I guess, Originally it may had some customized firmware/ROM for International use, I don’t have much idea).
I was asked for firmware upgrade every time when I run Samsung Kies. One day I clicked to upgrade the firmware. The upgrade was over successfully. But the new android version I found on my phone was 4.4.2.
In this version /new upgrade, I was unable to use CDMA data (EVDO-rev A). So I wanted to reverse back to old version. I search the process in Google and tried to load firmware with the help of Odin3 using this file:- “I535VRBMF1_I535VZWBMF1_VZW.zip”, but it was not successful. Result: Fail(Auth)
Then I loaded firmware for 4.4.2 using Odin3.09 (AP: “I535VRUDNE1_I535VZWDNE1_I535VRUDNE1_HOME.tar.md5”) and now the phone is working.
• If I use GSM SIM I can make call and use HSPA data service as well by adding new APN.
• If I use CDMA RUIM I can make call, BUT DATA SEVRICE using CDMA EVDO Rev A is NOT WORKING!! (I can not save APN in this case).
Now my issue is how to make CDMA EVDO data service working in my phone, because my basic requirement is to use this phone for CDMA service (voice + data).
I can edit the APN but when I click “Save”, nothing was saved. So I can not select APN for my carrier. I tried using APN Manager Pro too, here I can enter & enable the APN, but did not work. The phone is not able to dial the data access code #777 (verified from CDMA service provider side trace).
Can someone help me what I should do to make my phone working for CDMA data. My phone is rooted.
I guess it may work for CDMA data if I downgrade it to 4.3 or 4.1.2,
Can I do that. If so what are the procedures / steps. Any help in this regard would be highly appreciable.
Click to expand...
Click to collapse
I think your problem is the region is not set Nepal...I installed dark jb rom in my phone and data was gone since then. Then I manually downloaded stock firmware and flashed through odin but still data wasnt working,nd while in recovery mode i saw region INS ie India. then something came in my mind and.. .I changed it to NPL and now i can use data in only sim 1 only not in both sims. So i also may need some help.
For you *#272*IMEI# . Use your phones IMEI number there (*#06#) . Select NPL region.
NOTE: It will hard format your phone installing required carrier apps, aps, bla bla and hope work on your phone
Pujan Shrestha said:
I think your problem is the region is not set Nepal...I installed dark jb rom in my phone and data was gone since then. Then I manually downloaded stock firmware and flashed through odin but still data wasnt working,nd while in recovery mode i saw region INS ie India. then something came in my mind and.. .I changed it to NPL and now i can use data in only sim 1 only not in both sims. So i also may need some help.
For you *#272*IMEI# . Use your phones IMEI number there (*#06#) . Select NPL region.
NOTE: It will hard format your phone installing required carrier apps, aps, bla bla and hope work on your phone
Click to expand...
Click to collapse
I found that the hidden menu (& hence secret code dialing) was disabled in my phone. Following guides from Google search I enabled it. Now codes likes "*#06#",*#1111#", "*#0228#" etc are working, but "*#272*IMEI#" is not working. Any idea, why it is not working?
kkafle said:
I have a Samsung Galaxy S3 SCH-I535 CDMA Verizon & GSM phone. Originally it was on android 4.1.2 and working fine for both CDMA and GSM (one at a time). CDMA EVDO Rev A data service was working fine.
I am using this phone in Nepal (not in USA). It was carrier unlocked for both CDMA & GSM when I purchased from Amazon. (so, I guess, Originally it may had some customized firmware/ROM for International use, I don’t have much idea).
I was asked for firmware upgrade every time when I run Samsung Kies. One day I clicked to upgrade the firmware. The upgrade was over successfully. But the new android version I found on my phone was 4.4.2.
In this version /new upgrade, I was unable to use CDMA data (EVDO-rev A). So I wanted to reverse back to old version. I search the process in Google and tried to load firmware with the help of Odin3 using this file:- “I535VRBMF1_I535VZWBMF1_VZW.zip”, but it was not successful. Result: Fail(Auth)
Then I loaded firmware for 4.4.2 using Odin3.09 (AP: “I535VRUDNE1_I535VZWDNE1_I535VRUDNE1_HOME.tar.md5”) and now the phone is working.
• If I use GSM SIM I can make call and use HSPA data service as well by adding new APN.
• If I use CDMA RUIM I can make call, BUT DATA SEVRICE using CDMA EVDO Rev A is NOT WORKING!! (I can not save APN in this case).
Now my issue is how to make CDMA EVDO data service working in my phone, because my basic requirement is to use this phone for CDMA service (voice + data).
I can edit the APN but when I click “Save”, nothing was saved. So I can not select APN for my carrier. I tried using APN Manager Pro too, here I can enter & enable the APN, but did not work. The phone is not able to dial the data access code #777 (verified from CDMA service provider side trace).
Can someone help me what I should do to make my phone working for CDMA data. My phone is rooted.
I guess it may work for CDMA data if I downgrade it to 4.3 or 4.1.2,
Can I do that. If so what are the procedures / steps. Any help in this regard would be highly appreciable.
Click to expand...
Click to collapse
Well, it looks to me as though you've locked your bootloader and are now stuck on 4.4.2. For some reason, Verizon forces Samsung to lock their bootloaders, which means we (the consumers) cannot install "custom" firmware on our devices (or downgrade).
Once you're on 4.4.2 NE1 your stuck with it. No downgrade possible at least not without a Jtag service
Sent from my SCH-I535 using Xparent ICS Tapatalk 2
I have faced similar problem I can't create apn I am using it in India . So my data i not working on any sim card but i can make and receive calls . My android version is also 4.3 . So please help me i want to use both hspa and evdo .
Sent from my iPhone using Tapatalk

S6 Edge At&t unlocked No update and LTE signal

Sir I purchased a new unlocked S6 Edge ( 925A) at&t device from abroad to use in india.
The guy told it's fully unlocked and it support any sim card. Buy when I checked with Indian Sims I am getting only 2g signals .. I am not getting 3G and 4g signals..
When I checked for network selection mode settings it's missing in the settings.
No software OTA update is available. . I think it's also disabled.. when I checked the device status it is in "custom"..
So if I flash a stock ROM with Odin will it lock again ?
Do I need to unlock it again.. ??
First check the model from bootloader, if its actually a att variant then you can flash a stock rom too make it work as normal, but if its some other variant then get back to this thread again.
Its surely an at&t Variant of Samsung Galaxy S6 EDGE.. its model number is 925A.. which is only available for ATT..
Its baseband version is G925AUCU1AOCE
I purchased this phone as fully unlocked from UAE but in india when i start to use it i came to know that its not taking 3G and 4G signals .. but 2g Signal and Data services are working fine..
I got the phone in rooted condition without any Boot animation of At&t. Since its rooted i am not getting any official updates.
I am also facing many software bugs.. from different apps..
So really want to flash the phone with a new stock rom for using it..
I have some doubts about it please clear it..
1) if i flash it with an official att stock rom will it lock again for att network ?
2) can i remove the att boot animation after flashing with stock rom ?
Sent from my SM-925A using XDA Free mobile app
Providers in India use bands 3, 40, and 41 for LTE. The AT&T S6 Edge is only compatible with band 3.
I doubt you'd be able to flash a different ROM, and even if you could, you still wouldn't have compatibility with bands 40 or 41.
Firstly Thanks for your reply.. i know that S6 Edge at&t only support Band 3 LTE cuz it's a FDD LTE supported device.. in my country here providers are using both TDD & FDD LTE bands for LTE..
In my region "Kerala" at presently all the providers are using Band 3 which is compatible will my phone. But i am not receiving any LTE and 3G signals..
My friends have different unlocked phones from T-Mobile they are not facing any problem..
I am still doubt the flashing ROM.. i am going to flash the stock rom for at&t.. it's the only official rom available for my device.
It could be an APN issue. Make sure the settings are the same as your friends are using. Beyond that, I have no idea.
Nothing Wrong with the APN.. cuz i am using 2G data without any problems.
We have same APN for all 2G ,3G & 4G..
I think its the problem with my software..
I can't switch between LTE/WCDMA/2G because that network mode selection option is disabled or not available..
I am compelled to flash a new Rom..
I don't have any other options.
I own a good phone but i can't use it . Really sad about it..
for sure people here can help you more on this
http://forum.xda-developers.com/galaxy-s6-edge
I have my s6 Edge in Fully unlocked condition with Root Access also..i purchased it as unlocked from Dubai. But i cant find any Network Selection mode in my settings. Itz a ATT variant with model number 925A. The device is not taking 4G signals in india. Also there is no Network selection option in the settings to toggle between 3g & 4G..
Please help me?

Nexus 5 cellular network issue on 2G only

Hello everyone,
One month ago my device had a problem of rebooting again and again and again. . . , I give my mobile phone to service center, they said you need to change motherboard to solve rebooting problem.
But I didn't change mother board, my rebooting problem solved when I pressed power button hardly.
In service center they disassembled my phone to checkup. after then when I got my mobile phone back my new problem started.
My problem is with cellular network, my build number is MMB29K my radio is radio-hammerhead-m8974a-2.0.50.2.28 my device bootloader is unlocked. my bootloader is bootloader-hammerhead-hhz12k
My device is unable to find cellular network when I set preferred network type to 2G, my device can only find network on LTE and 3G.
I tried this different radios too radio-hammerhead-m8974a-1.0.25.0.23.img, radio-hammerhead-m8974a-2.0.50.2.26.img, radio-hammerhead-m8974a-2.0.50.2.27.img But nothing works,
This is a hardware problem?
Anyone have idea how to fix it?
Please help!!!
Sorry for my bad English.
Does your carrier support 2g? In Canada, there is only 1 carrier that has 2g.
audit13 said:
Does your carrier support 2g? In Canada, there is only 1 carrier that has 2g.
Click to expand...
Click to collapse
Yes my carrier supports 2G I live in India
Hmm, possible loose connections inside the phone?
I have the same problem, im from indonesia and im using D821, after upgrade to marshmallow, my phone only have 2g, no 3g/4g. i have solved the problem.
- first i downgrade my n5 to 4.4.4
- flash modem using recovery NEXUS5_KRT16M_RADIO.zip
- Reboot your phone
- flash again modem using recovery NEXUS5_KTU84M_RADIO.zip
- reboot your phone
- go to setting, more - mobile network - APN
- reset all APN on the list than create new apn of you mobile carrier.
- and the problem solved.
nb: bootloader must unlocked
( i dont know why should flashing the modem twice, i have try only flashed NEXUS5_KTU84M_RADIO.zip from the stock of 4.4.4 but the problem still on my phone)
sorry for my bad english.
Sent from my Nexus 5 using Tapatalk

Help ! G930FD Exynos can not detect 4G networks after installing 4G volte patch

I was using light rom oreo but on it volte was not working.So i found one patch to enable volte and WiFi calls but it didn't work.
After wards I flashed([TeamExyKings][G930/G935_F/FD][9.0][Note FE Port][10-April-2019][v3]LightROM) .After falshing this rom no 4G networks are being connected.
Then I tried flashing stock firmware but still the issue remain same(Notification drawer shows emergency calls only)
Currently I am using [TeamExyKings][G930/G935_F/FD][9.0][Note FE Port][10-April-2019][v3]LightROM...I too flashed bootloader..But nothing work please help
Rana Digvijaysinh_8 said:
I was using light rom oreo but on it volte was not working.So i found one patch to enable volte and WiFi calls but it didn't work.
After wards I flashed([TeamExyKings][G930/G935_F/FD][9.0][Note FE Port][10-April-2019][v3]LightROM) .After falshing this rom no 4G networks are being connected.
Then I tried flashing stock firmware but still the issue remain same(Notification drawer shows emergency calls only)
Currently I am using [TeamExyKings][G930/G935_F/FD][9.0][Note FE Port][10-April-2019][v3]LightROM...I too flashed bootloader..But nothing work please help
Click to expand...
Click to collapse
Is there an IMEI number showing in settings?
Yes It Shows IMEI number and 2G and 3G networks can able to connect ,but the problem is only with 4G ..so 4G networks are not detected if I do manual search of network then also same problem remains..Device only detect 2G and 3G network

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