Needed Cspire users, especially SG2 SCH-R760 - General Questions and Answers

I am of need of some information. 3 days of bits and pieces here is where I'm at.
I rooted this phone with droids kernel and installed a few different roms only to find that I had a non locking GPS. So after several threads I found I needed to return to stock and get a lock. Here is where the problem started. I have never found a Cspire stock file for the SCH-R760 the best match I could find was a USC easy upgrade tool on samsung. Flashed the util and got a stock lock. After several buil.prop edits apn edits never could get data to work. SO I found a generic carriers stock FF24 total tar package posted by Mcadder on the USC site flashed it with odin and checked the efs clear to wipe out all the USC stuff. When I came out of the flash all device information was gone and prl was gone. So then I went into ##3282## changed all the information that I had to get voice text and prl back. So I'm now rooted with no data.
I need someone who is on Cspire to go into ##3282## and give me some information so hopefully I can get data back.
Also if anyone has a default build.prop for this phone Please post. I have asked in other post but not finding to many people with a Cspire SG2 that can help.

I can help
jasonc331 said:
I am of need of some information. 3 days of bits and pieces here is where I'm at.
I rooted this phone with droids kernel and installed a few different roms only to find that I had a non locking GPS. So after several threads I found I needed to return to stock and get a lock. Here is where the problem started. I have never found a Cspire stock file for the SCH-R760 the best match I could find was a USC easy upgrade tool on samsung. Flashed the util and got a stock lock. After several buil.prop edits apn edits never could get data to work. SO I found a generic carriers stock FF24 total tar package posted by Mcadder on the USC site flashed it with odin and checked the efs clear to wipe out all the USC stuff. When I came out of the flash all device information was gone and prl was gone. So then I went into ##3282## changed all the information that I had to get voice text and prl back. So I'm now rooted with no data.
I need someone who is on Cspire to go into ##3282## and give me some information so hopefully I can get data back.
Also if anyone has a default build.prop for this phone Please post. I have asked in other post but not finding to many people with a Cspire SG2 that can help.
Click to expand...
Click to collapse
What specifics do you need from there. I see lots of information?
If you have this fixed already. Are you staying with the original load for this phone or did you find a ROM that works? I am wanting to flash my CSpire S2 and hope to find a jellybean load to work. I remember having trouble with the data on my S1 after flashing and went back to the original load.

Needed to close this. I got it all fixed and yes ,Using CodeName Android that was ported to USC then reported back to cspire.

need help
jasonc331 said:
Needed to close this. I got it all fixed and yes ,Using CodeName Android that was ported to USC then reported back to cspire.
Click to expand...
Click to collapse
Hey, I'm suffering from the same problem. Accidentally flashed a US Cellular ROM and now i have no data.
Can you post the steps you took to fix this?

jasonc331 said:
Needed to close this. I got it all fixed and yes ,Using CodeName Android that was ported to USC then reported back to cspire.[/QUOTe
Did flashing a us cellular custom ROM to your cspire Samsung galaxy s2 do this or did you lose your data by updating the firmware through us cellular? What I am asking is if it is safe to flash a custom ROM made for a us cellular galaxy s2 to my cspire galaxy s2??
Click to expand...
Click to collapse

tvaughn1 said:
jasonc331 said:
Needed to close this. I got it all fixed and yes ,Using CodeName Android that was ported to USC then reported back to cspire.[/QUOTe
Did flashing a us cellular custom ROM to your cspire Samsung galaxy s2 do this or did you lose your data by updating the firmware through us cellular? What I am asking is if it is safe to flash a custom ROM made for a us cellular galaxy s2 to my cspire galaxy s2??
Click to expand...
Click to collapse
It was caused by running the easy upgrade tool from Samsung, designed for US cellular . I personally run stuff for the Epic4g posted here.Some say it is not wise to do so because they aren't exactly the same,but I have had little issue running CM10,PA,AOKP,AOSP.
Click to expand...
Click to collapse

Related

is it dangerous to install firmware for other carriers to my unlocked phone

Hello, i want to update my Samsung Galaxy S Plus from 2.3.5 (xxkpf) to 2.3.6 (xxkq7) but it says its for DTB (another carrier)? i have a Norwegian phone (unlocked) but is it dangerous to update, will it destroy my phone or something?
Or can i just go ahead and download. And how du i update with Odin?
-Thanks guys.
As long as you have and know how to use odin/heimdall you should be fine. I was experimenting a while back when I had my Verizon Fascinate on Sprint and I flashed the Sprint Samsung epic modem. It completely borked the entire radio, however I was able to re-flash the original modem and it was fine. Read up on the recovery options for your phone first and check the specific forum for your phone. Also in the future please ask device specific question in the proper forum.'
http://forum.xda-developers.com/forumdisplay.php?f=656
Your section is here.

[SM-G920R7] S6 Thread

My goal would be to install Cyanogenmod on my SM-G920R7, but haven't been able to find too much help. Any of the rooting methods that seem to work on rest of the S6 variants, doesn't seem to work on this one. There is no TWRP available that I know of.
I would really appreciate any possible help. Thanks in advance.
i have the same problem
I think that this version of the s6 (the cspire version) isn't widely available enough and no one has bothered to make a root for it - ive been searching for a long time and still haven't found anything
I'd like to at least be able to root this thing.. On 5.1.1 now.
I have a rooted cellphone of this version (I purchased it rooted), is there any workaround to unlock GSM/LTE bands on this device?
----
Edit... Okay, so I went back to fresh stock with SmartSwitch, then flashed twrp-3.0.0-0-zerofltespr and Unikernel-v9b-BOH1-920P-100815 via odin 3.10.7, and rooted again... any method to enable gsm on this device yet?
jfarreola said:
I have a rooted cellphone of this version (I purchased it rooted), is there any workaround to unlock GSM/LTE bands on this device?
----
Edit... Okay, so I went back to fresh stock with SmartSwitch, then flashed twrp-3.0.0-0-zerofltespr and Unikernel-v9b-BOH1-920P-100815 via odin 3.10.7, and rooted again... any method to enable gsm on this device yet?
Click to expand...
Click to collapse
How exactly did you root it again? Was it SM-G920R7?
phreak311 said:
How exactly did you root it again? Was it SM-G920R7?
Click to expand...
Click to collapse
Yes, it was SM-G920R7... first, I flashed twrp-3.0.0-0-zerofltespr , then Unikernel-v9b-BOH1-920P-100815 , both via ODIN (you can google both files), note these files are NOT for r7 version (they're for sprint version *g920p*) but they'll root the phone.
I ended up getting rid of the phone as there's afaik no way to enable gsm on it
jfarreola said:
Yes, it was SM-G920R7... first, I flashed twrp-3.0.0-0-zerofltespr , then Unikernel-v9b-BOH1-920P-100815 , both via ODIN (you can google both files), note these files are NOT for r7 version (they're for sprint version *g920p*) but they'll root the phone.
I ended up getting rid of the phone as there's afaik no way to enable gsm on it
Click to expand...
Click to collapse
That's not true. I finally rooted that model and got TWRP installed, and followed the steps to get the Sprint Galaxy S4 domestic SIM unlocked. I finally got data and texting working last night, but I can't get calls to work for some reason on an AT&T SIM card. It even shows up at AT&T as my provider. AFIK it is now SIM unlocked, the only thing not working is calls like I said. I'm sooooo close to getting this working. I need people with this phone that are doing the same thing i'm doing! I only paid $50 for it! lol
Can u help me get mine unlocked , ive already rooted the phone.
shykidd said:
Can u help me get mine unlocked , ive already rooted the phone.
Click to expand...
Click to collapse
How did you root the phone thanks for any help
phreak311 said:
That's not true. I finally rooted that model and got TWRP installed, and followed the steps to get the Sprint Galaxy S4 domestic SIM unlocked. I finally got data and texting working last night, but I can't get calls to work for some reason on an AT&T SIM card. It even shows up at AT&T as my provider. AFIK it is now SIM unlocked, the only thing not working is calls like I said. I'm sooooo close to getting this working. I need people with this phone that are doing the same thing i'm doing! I only paid $50 for it! lol
Click to expand...
Click to collapse
What model did you use and what recovery to root phone
makemesmile said:
What model did you use and what recovery to root phone
Click to expand...
Click to collapse
use root for sprint or us cellular
DEXEIL said:
use root for sprint or us cellular
Click to expand...
Click to collapse
What model will work with my phone I have my backup for if something goes wrong but if I charge the recovery and have some type of issue can I use the stock rom again thanks for your help I had a gs3 rooted and really like it now I got the sm-920r7 what model with sprint or us cellular will work
Root sm-g920r7
lazydude said:
my goal would be to install cyanogenmod on my sm-g920r7, but haven't been able to find too much help. Any of the rooting methods that seem to work on rest of the s6 variants, doesn't seem to work on this one. There is no twrp available that i know of.
I would really appreciate any possible help. Thanks in advance.
Click to expand...
Click to collapse
use the cf auto root download this use google to search first one that comes up use that link go to model sm-g920p cspire and sprint uses
the same network . Use odin to install i have same phone and have mine rooted in this way. So far tried using the sprint version custom rom it will work but you can make phone calls but not the data side for phone internet.
---------- Post added at 04:09 PM ---------- Previous post was at 03:57 PM ----------
makemesmile said:
how did you root the phone thanks for any help
Click to expand...
Click to collapse
use the cf auto root download this use google to search first one that comes up use that link go to model sm-g920p cspire and sprint uses
the same network . Use odin to install i have same phone and have mine rooted in this way. So far tried using the sprint version custom rom it will work but you can make phone calls but not the data side for phone internet. Make sure you go to phone settings under find my phone and turn off reactivation lock
Any way to get the G920P roms to work on this variant? I've had luck with them with other c-spire/ntelos/r7 phones in the past. I'd like to flash Renegade to it...
blazie151 said:
Any way to get the G920P roms to work on this variant? I've had luck with them with other c-spire/ntelos/r7 phones in the past. I'd like to flash Renegade to it...
Click to expand...
Click to collapse
It works but the phone data Internet won't work can make phone calls and sprints annoying activation keeps posing up and even tried the pit file for cspire no change on that
Sent from my SM-G920R7 using Tapatalk
Wonder if anyone has got calls working using GSM sim card? I have the cspire G920R7 rooted with LTE data working using AT&T sim.
Won't receive calls (straight to vmail) and when placing calls dialer says CALL ENDED immediatly after dialing.
hmmm.
TEC602 said:
Wonder if anyone has got calls working using GSM sim card? I have the cspire G920R7 rooted with LTE data working using AT&T sim.
Won't receive calls (straight to vmail) and when placing calls dialer says CALL ENDED immediatly after dialing.
hmmm.
Click to expand...
Click to collapse
I'm working on this too. So far I've got the same situation as you, Data works but no calls/text.
in a few weeks the person who wants me to unlock this phone for them is switching carriers and plans on buying a new phone to use until I can unlock the S6, so I'll have more time to mess with it then.
There's a few things I want to try, but I can't post links here (XDA rules).
One involves Rooting and using a service code to unlock the bands (google "TeamUSCellular GSM unlock S6")
The other also requires rooting and involves using "galaxy tools" to unlock the bands (not sure if this app works with marshmallow, though) (google "theandroidsoul how to sim unlock sprint galaxy S6")
My hopes are not high for getting this phone to work fully. I've also been trying to get custom ROMs to work, but I can't get the cell radio to work at all on custom ROMs. Even with the stock SM-G920R7 Kernel straight from the latest update .tar
Sean89us said:
I'm working on this too. So far I've got the same situation as you, Data works but no calls/text.
.......
Click to expand...
Click to collapse
Thanks for the suggestion, yeah I have tried galaxy tools (GT) to change the phone mode to LTE/GSM auto and tried different CSC values, and accessed the hidden menus through there. The sim unlock in GT asks for a code which I dont know, but the phone doesn't seem to be locked anyway since it doesn't care when I try different sim cards. Weird thing is the GT app doesn't work very well (most hidden menus not working) on the current rom i'm using but worked better on the stock cspire rom. Note, I tried using MSL 000000 in ##3282# data menu and it works but most the settings in there don't seem to be applicable to GSM networks.
Currently I'VE been messing with the build.prop file, also tried the CDMA to GSM flashable zip which edits the build.prop but nothing has gotten better. One time after editing the build.prop the phone would only turn on with a blank screen and vibrate every few seconds, that was SCARY. Also was planning on flashing other radio/modem but having trouble finding many of those files and pulling them from roms seems difficult to get the correct file to flash on odin.
TEC602 said:
Thanks for the suggestion, yeah I have tried galaxy tools (GT) to change the phone mode to LTE/GSM auto and tried different CSC values, and accessed the hidden menus through there. The sim unlock in GT asks for a code which I dont know, but the phone doesn't seem to be locked anyway since it doesn't care when I try different sim cards. Weird thing is the GT app doesn't work very well (most hidden menus not working) on the current rom i'm using but worked better on the stock cspire rom. Note, I tried using MSL 000000 in ##3282# data menu and it works but most the settings in there don't seem to be applicable to GSM networks.
Currently I'VE been messing with the build.prop file, also tried the CDMA to GSM flashable zip which edits the build.prop but nothing has gotten better. One time after editing the build.prop the phone would only turn on with a blank screen and vibrate every few seconds, that was SCARY. Also was planning on flashing other radio/modem but having trouble finding many of those files and pulling them from roms seems difficult to get the correct file to flash on odin.
Click to expand...
Click to collapse
I'm not sure you'll even be able to flash other models' modem..? I can't say I've ever tried.
Anyway, getting your hands on the firmware is easy. Just use SamFirm (http://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647)
To use it, just input the model number (SM-G920R7/R4/P/V/T/A) and the region code, then select "auto".
Region codes and model numbers:
C-Spire: ACG (SM-G920R7)
US-Cellular: USC (SM-G920R4)
Sprint: SPR (SM-G920P)
Verizon: VZW (Locked out from download, app can't download) (SM-G920V)
T-mobile: TMB (SM-G920T)
ATT: ATT (Locked out from download, app can't download) (SM-G920A)
This app downloads firmwares directly from Samsung servers, so the download is really fast and guaranteed to be perfect/stock.
**the SM-G920R7 is closest related to the SM-G920R4 (US Cellular) & SM-G920P (Sprint). The US Cellular one recently supports GSM Bands natively without any rooting/messing with hidden settings, so that's where i'd start. You may not even need the baseband/modem, just flash the rom? I'm not sure. Good luck dude It'd be awesome if you get it working
*** Also, make sure you have a backup of your EFS before messing with the modem. Apparently if you flash an incompatible modem you can erase/corrupt the EFS partition and lose your IMEI. Hell, make a FULL backup with TWRP, and make sure that backup is copied over to your computer before doing any flashing. You can't be too careful with this.
Haven't had any luck flashing stock firmware or modems from other models using Odin, errors with a security message or something, tried G920A and G920R4. Probably for the best I suppose. Flashing custom roms has not been a problem, even if the don't work properly. Wonder if there is a test mode or way to use logcat to see why calls don't proceed like normal. Never worked on going CDMA to GSM before, I always did CDMA to CDMA in the past.

Screwed up my SM-G930VL, please help!!

Hi,
I bought a SM-G930VL (tracphone branded, but verizon compatible) galaxy s7 for a pretty good price, however the advanced and wifi calling were not options (even though verizon told me they were before I purchased). I decided I would try to flash the VZW firmware from sammobile through odin, but it did not work. It originally gave me the ext4 error, but then flashing the csc fixed that. I then flashed the AP file, but it finished very quickly (about 3.5 min) and now will only boot into recovery when powered up.
Is there anything I can do to save my phone, or have I permanently screwed it up?
Thanks
holy sh*t got it working. Flashed the BL, AP, CP, and CSC files and it booted to welcome screen!!
Thanks all (and hopefully this helps anyone in the future who runs into this predicament)
It is currently checking wifi connection so hopefully all is well!
Edit: Is there a way to edit the title? That way this could be maybe help the next person rather than getting ignored.
whatnow275 said:
holy sh*t got it working. Flashed the BL, AP, CP, and CSC files and it booted to welcome screen!!
Thanks all (and hopefully this helps anyone in the future who runs into this predicament)
It is currently checking wifi connection so hopefully all is well!
Edit: Is there a way to edit the title? That way this could be maybe help the next person rather than getting ignored.
Click to expand...
Click to collapse
Hi, want to ask a few questions. were you able to fully flash the Verizon firmware to this model with no issues? The phone is also supposed to be factory unlocked per my connections with reps.
Did the phone fully change to a SM-G930V, showing in settings and in Odin mode?
Yes I was able to fully flash Verizon and I have working wifi calling and advanced calling. In settings it shows up as V not VL as well. As far as I understand it is the exact same hardware just different software running on it
Sent from my iPhone using Tapatalk
whatnow275 said:
Yes I was able to fully flash Verizon and I have working wifi calling and advanced calling. In settings it shows up as V not VL as well. As far as I understand it is the exact same hardware just different software running on it
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Great, i flashed one yesterday for a friend via teamviewer and even changed the model as SM-G930V in odin mode. So I guess due to this the phone has now a locked bootloader and ended up being converted to a full Verizon galaxy S7. Only thing it did not take his Metro PCS sim card. Unsure it would take any other carrier sim cards.
aromerblz said:
Great, i flashed one yesterday for a friend via teamviewer and even changed the model as SM-G930V in odin mode. So I guess due to this the phone has now a locked bootloader and ended up being converted to a full Verizon galaxy S7. Only thing it did not take his Metro PCS sim card. Unsure it would take any other carrier sim cards.
Click to expand...
Click to collapse
Was the boot loader originally unlockable? I was under the impression that all SD versions were locked down right. That's great that you got it to work also!
Sent from my iPhone using Tapatalk
whatnow275 said:
Was the boot loader originally unlockable? I was under the impression that all SD versions were locked down right. That's great that you got it to work also!
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
It seems it was as it allowed me to flash the verizon bootloader and full firmware. Normally tracfones only allow to flash part of a firmware and rejects all bootloader partitions.
Is bootloader locked after flash g930v firmware. Or can I flash back to straight talk?
Cherb1990 said:
Is bootloader locked after flash g930v firmware. Or can I flash back to straight talk?
Click to expand...
Click to collapse
haven't tried flashing back as have no reason for that. To top it off the firmware has not been released yet.
aromerblz said:
haven't tried flashing back as have no reason for that. To top it off the firmware has not been released yet.
Click to expand...
Click to collapse
I'm currently on Verizon switching to T-Mobile this week. Is it possible to flash to G930T? I flashed g930VL to G930V. But wasnt sure if I could. If of the phone would be compatible with T-Mobile
Cherb1990 said:
I'm currently on Verizon switching to T-Mobile this week. Is it possible to flash to G930T? I flashed g930VL to G930V. But wasnt sure if I could. If of the phone would be compatible with T-Mobile
Click to expand...
Click to collapse
There were reports of someone flashing the phone to an SM-G930U (Unlocked US S7). So apparently they are interflashable. I however have not gone to that extent as am yet to get my one to thinker with. I flashed previously to a SM-G930V via teamviewer for a friend. You can search the threads and verify.
Read here:
http://forum.xda-developers.com/tmo...0t1-metro-pcs-flashed-g930t-firmware-t3358941
aromerblz said:
Great, i flashed one yesterday for a friend via teamviewer and even changed the model as SM-G930V in odin mode. So I guess due to this the phone has now a locked bootloader and ended up being converted to a full Verizon galaxy S7. Only thing it did not take his Metro PCS sim card. Unsure it would take any other carrier sim cards.
Click to expand...
Click to collapse
You probably figured it by now, but MetroPCS is the only retarded carrier that locks SIM to IMEI. So if you want to use MetroPCS on any other phone than the one you currently have it on, you need to call customer service and give them your new phone's IMEI. Then your new phone will start working. If you want to switch back to your old MetroPCS phone you need to call them again and give them that IMEI, which is retarded. I don't know why they do that but it's really annoying if you frequently switch phones.
I have a 935V (S7 Edge Verizon) and now have 935U ROM on it using Tracfone. Initially I have Tracfone's Verizon service but I wanted the freedom to easily move from one phone to another so I converted it to a Tracfone-GSM(ATT) and been using it in my Verizon S7 Edge (with 935U ROM) and iPhone SE without any problem.
whatnow275 said:
Hi,
I bought a SM-G930VL (tracphone branded, but verizon compatible) galaxy s7 for a pretty good price, however the advanced and wifi calling were not options (even though verizon told me they were before I purchased). I decided I would try to flash the VZW firmware from sammobile through odin, but it did not work. It originally gave me the ext4 error, but then flashing the csc fixed that. I then flashed the AP file, but it finished very quickly (about 3.5 min) and now will only boot into recovery when powered up.
Is there anything I can do to save my phone, or have I permanently screwed it up?
Thanks
Click to expand...
Click to collapse
Could you add links to everything you used? I have the same model using straight talk and I want to be able to have a backup firmware to flash in case I ever mess up my phone (which seems to be a trend). And have you had any issues at all? Like, does everything work okay?
whatnow275 said:
Hi,
I bought a SM-G930VL (tracphone branded, but verizon compatible) galaxy s7 for a pretty good price, however the advanced and wifi calling were not options (even though verizon told me they were before I purchased). I decided I would try to flash the VZW firmware from sammobile through odin, but it did not work. It originally gave me the ext4 error, but then flashing the csc fixed that. I then flashed the AP file, but it finished very quickly (about 3.5 min) and now will only boot into recovery when powered up.
Is there anything I can do to save my phone, or have I permanently screwed it up?
Thanks
Click to expand...
Click to collapse
I too would like to know if you could please provide links. Im rather new to this, the only other phone ive ever flashed rooted and put custom rom on was a Evo. But alls im looking to do is get my s7 rooted and it would be nice to have it flashed to Verizon first seeing as there root guide is for verison phone and firmware.
Dano5674 said:
I too would like to know if you could please provide links. Im rather new to this, the only other phone ive ever flashed rooted and put custom rom on was a Evo. But alls im looking to do is get my s7 rooted and it would be nice to have it flashed to Verizon first seeing as there root guide is for verison phone and firmware.
Click to expand...
Click to collapse
It's been a very long time but I'll try to remember lol. Been in iPhone land for about a year (now I'm back with the good guys tho )
Help lol
whatnow275 said:
It's been a very long time but I'll try to remember lol. Been in iPhone land for about a year (now I'm back with the good guys tho )
Click to expand...
Click to collapse
I bricked my SM-930VL too and it's not letting me flash anything back to stock. No clue what to do

N920P issue to work in UK, upgraded to MM from china firmware N920F help!

Ok im really hoping someone can help me.
Bought a N920F (yup doesnt exist but N920p's have taken a trip to China to be turned into this strange model)
Now the phone was working fine on Lollipop, and model used to show N920V and baseband Sprint it was like a hybrid custom firmware probably hacked up to be used in UK, but download mode etc. showed it was a N920P originally. Now I wanted to upgrade to Marshmellow, before this I made a nandroid backup and also backed up Radio & Efs using app.
Upgraded succesfully with stock N920P and now no network, tried everything. Then thought I could downgrade via flash to Lollipop to no avail as I think its now locked to do so. Nandroid restore not happening as I believe its locked to restore also unless maybe I was on lollipop.
So now im stuck on stock N920p firmware thats not working in UK networks. Im about to give up, is there any solution. Would unlocking the phone in its current state unlock it to UK networks. I hope there is a solution.
Any help to the right direction is much appreciated.
Things ive tried
Downgrade-unsuccessful
Restore Partitions-unsuccessful
Flash N920V-unsuccessful
Full restores etc-unsuccessful
nandroid restore-unsuccesful
Kind Regards
oneshot12 said:
Ok im really hoping someone can help me.
Bought a N920F (yup doesnt exist but N920p's have taken a trip to China to be turned into this strange model)
Now the phone was working fine on Lollipop, and model used to show N920V and baseband Sprint it was like a hybrid custom firmware probably hacked up to be used in UK, but download mode etc. showed it was a N920P originally. Now I wanted to upgrade to Marshmellow, before this I made a nandroid backup and also backed up Radio & Efs using app.
Upgraded succesfully with stock N920P and now no network, tried everything. Then thought I could downgrade via flash to Lollipop to no avail as I think its now locked to do so. Nandroid restore not happening as I believe its locked to restore also unless maybe I was on lollipop.
So now im stuck on stock N920p firmware thats not working in UK networks. Im about to give up, is there any solution. Would unlocking the phone in its current state unlock it to UK networks. I hope there is a solution.
Any help to the right direction is much appreciated.
Things ive tried
Downgrade-unsuccessful
Restore Partitions-unsuccessful
Flash N920V-unsuccessful
Full restores etc-unsuccessful
nandroid restore-unsuccesful
Kind Regards
Click to expand...
Click to collapse
Check if there is a service menu in your settings
It should be named "activate this device"
oneshot12 said:
Ok im really hoping someone can help me.
Bought a N920F (yup doesnt exist but N920p's have taken a trip to China to be turned into this strange model)
Now the phone was working fine on Lollipop, and model used to show N920V and baseband Sprint it was like a hybrid custom firmware probably hacked up to be used in UK, but download mode etc. showed it was a N920P originally. Now I wanted to upgrade to Marshmellow, before this I made a nandroid backup and also backed up Radio & Efs using app.
Upgraded succesfully with stock N920P and now no network, tried everything. Then thought I could downgrade via flash to Lollipop to no avail as I think its now locked to do so. Nandroid restore not happening as I believe its locked to restore also unless maybe I was on lollipop.
So now im stuck on stock N920p firmware thats not working in UK networks. Im about to give up, is there any solution. Would unlocking the phone in its current state unlock it to UK networks. I hope there is a solution.
Any help to the right direction is much appreciated.
Things ive tried
Downgrade-unsuccessful
Restore Partitions-unsuccessful
Flash N920V-unsuccessful
Full restores etc-unsuccessful
nandroid restore-unsuccesful
Kind Regards
Click to expand...
Click to collapse
now the 920p firmware is locked out of the box if it was unlocked sometimes certain rom flashes will relock
as prev poster said activate device is for sprint users only will never work
have you tried to goto network settings and making sure its set for global or automatic.
also is it saying invalid sim or anything like that normally first signs of being relocked.
i paid 34.99 for a unlock from the idone app worked great.

Convert SM-G930T to SM-G930A so I can use AT&T LTE bands.

Hi All, I want to continue using my AT&T prepaid plan but I recently bought a locked T-Mobile Galaxy S7 SM-G930T (I'm going to try to unlock it - if that doesn't work this is all moot). I would like to flash AT&T firmware so I can use the AT&T LTE bands. Can I follow the instructions in the link below once I've unlocked a T-Mobile SM-G930T and turn it into a SM-G930A?
http://www.droidviews.com/nougat-firmware-on-att-galaxy-s7s7-edge-sm-g930a-g935a/
I've read the link below... but it seems to be only if you want to continue using T-Mobile service which I don't.
https://forum.xda-developers.com/tm...w-to-flash-att-nougat-to-t-mobile-s7-t3553610
Changing firmware doesn't have anything to do with what bands the hardware supports. Unlock it and throw the ATT SIM in. Only difference is carrier supported features and software (wifi calling, etc). Flashing ATT modem might improve coverage but all S7 support the same bands.
Thanks buddy for the reply. I'm used to using a custom ROM on my Android phones so this is new. Mostly CyanogenMod.
That's good to know I don't need to flash in order to get the bands but I understand I need to if I want OTA updates from at&t. It seems relatively simple that you just flash the AT&T ROM over the T-Mobile with Odin and then use some update file. It doesn't even effect Samsung pay and Knox which is great.
Stupid question: is the AT&T modem included with the AT&T rom? Also, with regards to the 2nd link in the OP what is the update file that you put on the sdcard to use in recovery - is that an OTA update because your ROM is different from your carrier?
madadhd said:
Thanks buddy for the reply. I'm used to using a custom ROM on my Android phones so this is new. Mostly CyanogenMod.
That's good to know I don't need to flash in order to get the bands but I understand I need to if I want OTA updates from at&t. It seems relatively simple that you just flash the AT&T ROM over the T-Mobile with Odin and then use some update file. It doesn't even effect Samsung pay and Knox which is great.
Stupid question: is the AT&T modem included with the AT&T rom? Also, with regards to the 2nd link in the OP what is the update file that you put on the sdcard to use in recovery - is that an OTA update because your ROM is different from your carrier?
Click to expand...
Click to collapse
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
i have METROPCS Phone SM-G930T1 Nougat, already unlocked since i live in mexico...is there a international rom to flash?? i wanna convert my s7 to a non carrier rom IN ADVANCE THANKS 4 YOUR HELP!
muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
I don't get why you would do this other than to have ATT bloat over TMO bloat (IMHO TMO has less bloat than ATT). There's no technical advantage. Am I missing something?
A0425A said:
I don't get why you would do this other than to have ATT bloat over TMO bloat (IMHO TMO has less bloat than ATT). There's no technical advantage. Am I missing something?
Click to expand...
Click to collapse
The amount of bloatware is irrelevant since you can freeze all bloatware on either build. I experienced many issues on the TMo version including issues with Android Auto, Google Assistant, and Tasker. I thought these apps were buggy but all of those issues were resolved on the AT&T version. The AT&T version seems to be a better, bug-free build.
muniz_ri said:
The amount of bloatware is irrelevant since you can freeze all bloatware on either build. I experienced many issues on the TMo version including issues with Android Auto, Google Assistant, and Tasker. I thought these apps were buggy but all of those issues were resolved on the AT&T version. The AT&T version seems to be a better, bug-free build.
Click to expand...
Click to collapse
Read that in a different thread you posted to after I responded. I think it's very YMMV though. But if you saw improvement then ??
Hi, did anyone ever complete this flash from SM-G930T to SM-G930A? I'd like to do this solely to try and get the wifi calling feature since my workplace has poor cell service but great wifi. I bought the T-Mobile phone, unlocked it, put the ATT sim in and everything but wifi calling works fine. I appreciate the reply!
This is much later in the year (11-8-2021) and ATT has posted the list of phone they say will work and it only shows G930A. It seems their test of working means it must have been sold by ATT. They say My G930T won't work. So Will ATT continue to use customer's unlocked phones it they were not orginally sold by ATT. They have the records. Will ATT refuse to use one of their SIMs even if the phone is Flashed to ATT logo. I do not want to throw away my G930T phone.
muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
Hello and thank you. You posted this information and link back in 2017 and so much has changed. Mostly ATT is now working hard to get rid of all 3G towers and firing up 5G. They said my Galaxy S7-GM930T would not work so I think they link you posted will help me convert the phone back to a GM930A or U or U1. My question is,..Has anything in your post changed since 2017 and if so could you please advise me of what I need to do. Thanks very much.
trigger1937 said:
Hello and thank you. You posted this information and link back in 2017 and so much has changed. Mostly ATT is now working hard to get rid of all 3G towers and firing up 5G. They said my Galaxy S7-GM930T would not work so I think they link you posted will help me convert the phone back to a GM930A or U or U1. My question is,..Has anything in your post changed since 2017 and if so could you please advise me of what I need to do. Thanks very much.
Click to expand...
Click to collapse
They sent you a message saying the phone won't work?

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