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[Q] Reverse Flashed Galaxy S3 from Cricket back to Verizon

I made the mistake of not meeting at the Verizon store and bought a Galaxy S3 off Craigslist. It has a clean esn but it won't read the 4G sim card. I found out it was flashed to Cricket so I used Odin to flash it back to the original rom that came with the version of the phone which changed it to Baseband version: I535VRLEC but this still won't work it still has the same problem reading the Verizon 4G Sim.
I guess my question is... if there is a different rom I should flash it too? Or is it that once it has been flashed from Verizon to Cricket it can't flashed back to be used on Verizon again?

I would just get a new sim card from Verizon, that may resolve your issues. A few questions:
1) Does it still make calls and texts? The main issue is it doesn't connect to LTE? Maybe I'm not understanding your issue entirely.
2) Does the phone have your phone number and matching IMEI (labeled on the retail box) listed in Settings/About Phone?
You could Odin the stock image VRALF2, VRALEC was a pre-release image. Do not accept the OTA then dial *2767*3855# to reprovision the sim card. Maybe see if this resolves your issues.
Sent from my SCH-I535 using xda app-developers app

SlimSnoopOS said:
I would just get a new sim card from Verizon, that may resolve your issues. A few questions:
1) Does it still make calls and texts? The main issue is it doesn't connect to LTE? Maybe I'm not understanding your issue entirely.
2) Does the phone have your phone number and matching IMEI (labeled on the retail box) listed in Settings/About Phone?
You could Odin the stock image VRALF2, VRALEC was a pre-release image. Do not accept the OTA then dial *2767*3855# to reprovision the sim card. Maybe see if this resolves your issues.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Well when I brought the phone in the first time to get it activated I was switching from a Droid X so they gave me a new 4G Sim card. But yeah it won't make calls or texts and it won't connect to there 4G data network or pick up the sim.
So are you saying changing it from VRALEC to VRALF2 might fix it?

SlimSnoopOS said:
I would just get a new sim card from Verizon, that may resolve your issues. A few questions:
1) Does it still make calls and texts? The main issue is it doesn't connect to LTE? Maybe I'm not understanding your issue entirely.
2) Does the phone have your phone number and matching IMEI (labeled on the retail box) listed in Settings/About Phone?
You could Odin the stock image VRALF2, VRALEC was a pre-release image. Do not accept the OTA then dial *2767*3855# to reprovision the sim card. Maybe see if this resolves your issues.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Oh yeah and I don't have the box it came in but my phone number did show up in the Settings/About Phone
And at the store they told me it was picking up the Verizon network it just wasn't connecting I guess? so it wouldn't get on the internet or make calls or texts

MR-OZ said:
Well when I brought the phone in the first time to get it activated I was switching from a Droid X so they gave me a new 4G Sim card. But yeah it won't make calls or texts and it won't connect to there 4G data network or pick up the sim.
So are you saying changing it from VRALEC to VRALF2 might fix it?
Oh yeah and I don't have the box it came in but my phone number did show up in the Settings/About Phone
And at the store they told me it was picking up the Verizon network it just wasn't connecting I guess? so it wouldn't get on the internet or make calls or texts
Click to expand...
Click to collapse
What I was saying is that normally people Odin to VRALF2 or VRALG1 then reprovision their sim card. That code will work on VRALEC but I was just trying to put you on a common starting point since we here don't really use the VRALEC stock tar in Odin. Primarily what you'll find in the stickies are VRALF2 and newer images. VRALF2 was the "store bought" earliest software version of the Verizon GSIII from the summer. Its worth a try but consider the following first.
Since you said it doesn't call/text then I think you lost your IMEI. Could you check for me under Settings/About Phone? It should be 15 random numerical digits if I'm not mistaken. If its not 15 digits, it will be 0 or several 0's. Don't post the exact number if it is 15 digits, but tell me what you see.

SlimSnoopOS said:
What I was saying is that normally people Odin to VRALF2 or VRALG1 then reprovision their sim card. That code will work on VRALEC but I was just trying to put you on a common starting point since we here don't really use the VRALEC stock tar in Odin. Primarily what you'll find in the stickies are VRALF2 and newer images. VRALF2 was the "store bought" earliest software version of the Verizon GSIII from the summer. Its worth a try but consider the following first.
Since you said it doesn't call/text then I think you lost your IMEI. Could you check for me under Settings/About Phone? It should be 15 random numerical digits if I'm not mistaken. If its not 15 digits, it will be 0 or several 0's. Don't post the exact number if it is 15 digits, but tell me what you see.
Click to expand...
Click to collapse
No I didn't lose the IMEI it's still there, all 15 digits.
So is it possible to flash a Galaxy S3 from Verizon to Cricket. Then back to Verizon? Is it just a matter of changing to the right software?

MR-OZ said:
No I didn't lose the IMEI it's still there, all 15 digits.
So is it possible to flash a Galaxy S3 from Verizon to Cricket. Then back to Verizon? Is it just a matter of changing to the right software?
Click to expand...
Click to collapse
Honestly I know nothing about flashing to another carrier. It's not something that I have a reason to research so I'm not knowledgeable in that area. My suggestion still is to run that reprovision code since you've already Odin flashed to VRALEC.
EDIT: To clarify, my suggestion is Odin VRALF2 then run the dialer code.
Just as a precaution, you should write down your IMEI, ERI, and maybe even your MIN and PRL version and store them somewhere on your computer. Since you don't actually have the retail box, this should be kept safe if we can't get this current situation straightened out. My reasoning is if you do somehow lose these before you're 100% fixed, having them written down may help you if you need to use one of the IMEI or ERI tools in the dev section.

Did you try flashing a Verizon radio?

HHF2 said:
Did you try flashing a Verizon radio?
Click to expand...
Click to collapse
Yeah I did it switched my Baseband version from VRBLK3 to VRLEC

MR-OZ said:
Yeah I did it switched my Baseband version from VRBLK3 to VRLEC
Click to expand...
Click to collapse
Let's see what happens when you follow section 5 of this thread:
http://forum.xda-developers.com/showthread.php?t=1762709
Use the official VRALG1 4.0.4 firmware, don't accept the OTA prompt, then try the reprovision code.

SlimSnoopOS said:
Let's see what happens when you follow section 5 of this thread:
http://forum.xda-developers.com/showthread.php?t=1762709
Use the official VRALG1 4.0.4 firmware, don't accept the OTA prompt, then try the reprovision code.
Click to expand...
Click to collapse
Hey that did the trick problem solved!
Thank you for taking the time to help me!

MR-OZ said:
Hey that did the trick problem solved!
Thank you for taking the time to help me!
Click to expand...
Click to collapse
Great, I'm happy to help! So calls, texts, and data work? And are you staying stock or are you rooting/unlocking?

SlimSnoopOS said:
Great, I'm happy to help! So calls, texts, and data work? And are you staying stock or are you rooting/unlocking?
Click to expand...
Click to collapse
Yeah.. Data, calls, text it's all working..
And yeah I planned on rooting it I'm just looking at what the best rom would be to flash it to.. any suggestions?

MR-OZ said:
Yeah.. Data, calls, text it's all working..
And yeah I planned on rooting it I'm just looking at what the best rom would be to flash it to.. any suggestions?
Click to expand...
Click to collapse
Ahh, great! When you do just make sure to root, unlock your bootloader, make a nandroid backup in CWM or TWRP recovery, then use the "Comprehensive IMEI /EFS Backup" thread to properly backup your IMEI.
I encourage you to flash roms until you find something you like. I'll suggest that you stay with touchwiz roms then see whether sticking with Samsung's software in its various forms is good enough for you. If not, there's plenty of AOSP to go around!

So you just followed step 5 on the link above and it worked? (flashing with 4.0.4 ROM)
I'm going through a similar issue and been having a hell of a time getting mine to work. Mine was flashed to work on nTelos which is a CDMA provider in my area. I have flashed to just about everything possible (except 4.0.4) and haven't had any luck.
I went to the Verizon store and they tried to activate the phone but they couldn't but game me a sim to use and told me to call back if and when I could get it flashed back.
I tried at one point to take a working sim from another phone but it will not activate..... will not make calls, will not get data etc etc. when I dial 611 it still goes to ntelos.
Someone suggested putting Phone info on and setting the Phone to RUIM but I could not find that setting in Phone Info (even on the correct phone info, after time I found out the original phone info was pulled from the play store and I had to manually download it.
Anyway with the SIM I have and following section 5 as suggested mine does not give the option to accept or deny the OTA so I can try to enter the re-provision code. Should I get hold of the known working SIM to attempt this?

THANK YOU SO MUCH!!
The key to this however is to have a working SIM (the only one in our workplace was from an iPhone 5), I fashioned a nano SIM to mini SIM adapter and got the info on to the phone then my phone could finally be activated however the nano SIM I used got tied to my phone and couldn't be put back to the iPhone 5 it came from lmao... so I had to run to the Verizon store to get my co-workers phone re-activated.
But going down to the 4.0.4 and VRLEC modem then inserting the active sim, reprovision once it activates (it didnt give me the option to not allow it to do anything), then insert the mini sim, call Verizon they got it activated, I just now updated back to 4.1.1 (need to get 4.1.2) and everything is working wonderfully!!

All of this info is extremely refreshing to hear since I have the same problem with one exception. My s3 has a bad charger port. Sent it in for warranty repair and Samsung said it was moisture damaged and corroded and is not covered under warranty (lies). But that is beside the point and another subject.
My question is, can all of this stuff be done through the sd card and not through the USB? I know it is a long shot but any help would be greatly appreciated.
Thanks!

I know this thread is a little old but I just wanted to say thanks, the exact same thing happened to me (phone was previously flashed to cricket but i was unaware until AFTER purchasing and trying to activate)
ODIN Flashing the OMBINATION_I535VRALG1_I535VZWALG1_743127_REV09_user_low_ship.tar.zip package then reprovisioning with the *2767*3855# worked like a charm, I was sweating for a while as the deal was from craigslist
So far as i can tell to do this you NEED to use the VRAL as I tried a few other (newer) stock files and this was the only one that worked
THANKS AGAIN!
Keywords to help other people find this post:
fix radio
verizon from cricket
flash back to verizon
reprovision sim
odin flah back to stock

[Q] Cannot Send Text Messages on new carrier

So here's my situation.
I have a Verizon Galaxy S3 I535 I have been using on Verizon's network for about 2 years. I am switching to a local carrier that shares towers with Verizon. I am trying to use my I535 on the local carrier. I got a SIM card from the local carrier, put that in my phone and I can make calls and receive text messages but not send them.
In order to attempt to resolve this issue I planned to Wipe the phone and put a custom ROM on to ensure that none of Verizon's software or settings is preventing the texting from working. Problem is I am running KitKat version 4.4.2 that has Verizon's bootloader lock.
I got the phone rooted via Towelroot and CW ROM Manager installed. (rebooted into recovery mode got the "Verizon found unauthorized software yada yada." Got the phone back to a "normal" state with 4.4.2 rooted.)
My questions are:
1. Do you think putting a custom ROM on the phone will resolve my ability to send text messages?
2. Texting works on these same towers using Verizon. Can the backend hardware at Verizon allow the phone to work properly, but not the local carrier? (I have verified Local carrier Galaxy S3 is a different model number)
3. Is it possible to overwrite the bootloader/rom via ODIN
4. Is it possible to brick a phone so bad that you cant even reload the default OS via ODIN

admc6 said:
So here's my situation.
I have a Verizon Galaxy S3 I535 I have been using on Verizon's network for about 2 years. I am switching to a local carrier that shares towers with Verizon. I am trying to use my I535 on the local carrier. I got a SIM card from the local carrier, put that in my phone and I can make calls and receive text messages but not send them.
In order to attempt to resolve this issue I planned to Wipe the phone and put a custom ROM on to ensure that none of Verizon's software or settings is preventing the texting from working. Problem is I am running KitKat version 4.4.2 that has Verizon's bootloader lock.
I got the phone rooted via Towelroot and CW ROM Manager installed. (rebooted into recovery mode got the "Verizon found unauthorized software yada yada." Got the phone back to a "normal" state with 4.4.2 rooted.)
My questions are:
1. Do you think putting a custom ROM on the phone will resolve my ability to send text messages?
2. Texting works on these same towers using Verizon. Can the backend hardware at Verizon allow the phone to work properly, but not the local carrier? (I have verified Local carrier Galaxy S3 is a different model number)
3. Is it possible to overwrite the bootloader/rom via ODIN
4. Is it possible to brick a phone so bad that you cant even reload the default OS via ODIN
Click to expand...
Click to collapse
1. Sounds to me like it's not sim unlocked.
2. A custom rom may or may not work in this case, if your on the 4.4.2 OTA your limited to two current roms other than stock using safestrap, disregard the custom rom part
3. The bootloader is locked so once again your limited
4. And yes you could very well hard brick the phone while not doing something correctly
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

ShapesBlue said:
1. Sounds to me like it's not sim unlocked.
2. A custom rom may or may not work in this case, if your on the 4.4.2 OTA your limited to two current roms other than stock using safestrap, disregard the custom rom part
3. The bootloader is locked so once again your limited
4. And yes you could very well hard brick the phone while not doing something correctly
Sent from my SCH-I535 using Xparent ICS Tapatalk 2
Click to expand...
Click to collapse
Thanks for the Reply
1. I called Verizon when I was planning to switch. They told me my phone is unlocked to use on any carrier. They also gave me the code '000000' if it isn't unlocked. I never received an error message or a place to put an unlock code when using the new SIM. Do you have a link I can reference to ensure that it is unlocked? I have done several searches and haven't found anything that works. There are several that say to type in secret code *#XXXX# but my phone just attempts to make a call and says "not a valid number". Any help is appreciated.
2. Are you saying that i would be able to put a custom ROM on like Jelly 'Beans' or Clean ROM? If yes, can you post a link for that as well? I have done some extensive searching and most of the results applied to phones that were pre 4.4.x release.

admc6 said:
Thanks for the Reply
1. I called Verizon when I was planning to switch. They told me my phone is unlocked to use on any carrier. They also gave me the code '000000' if it isn't unlocked. I never received an error message or a place to put an unlock code when using the new SIM. Do you have a link I can reference to ensure that it is unlocked? I have done several searches and haven't found anything that works. There are several that say to type in secret code *#XXXX# but my phone just attempts to make a call and says "not a valid number". Any help is appreciated.
2. Are you saying that i would be able to put a custom ROM on like Jelly 'Beans' or Clean ROM? If yes, can you post a link for that as well? I have done some extensive searching and most of the results applied to phones that were pre 4.4.x release.
Click to expand...
Click to collapse
I honestly know nothing about sim unlocking. If it's on 4.3 or 4.4 and it took the OTA your very very limited to what roms you can flash.
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

[Q] AtT NOte 2 unlocked, now using Tmobile, Can't upgrade firmware

MY sister called ATt to unlock her phone when she went abroad, they did. Now she no longer has ATT and is with tmobile. Using the Tmobile sim card, she can't seem to upgrade her OS using the firmware update option in settings. How can she go about upgrading? she currently has android 4.1.2 with the NOte 2?
also if i flash aokp on her phone, but she don't like it, then flash back the original 4.1.2 firmware, would i lose the unlock that ATT did for her and she can't use Tmobile anymore?

jinjin12 said:
MY sister called ATt to unlock her phone when she went abroad, they did. Now she no longer has ATT and is with tmobile. Using the Tmobile sim card, she can't seem to upgrade her OS using the firmware update option in settings. How can she go about upgrading? she currently has android 4.1.2 with the NOte 2?
also if i flash aokp on her phone, but she don't like it, then flash back the original 4.1.2 firmware, would i lose the unlock that ATT did for her and she can't use Tmobile anymore?
Click to expand...
Click to collapse
Carrier unlocking is separate from ROM. If you can install custom recovery (CWM, TWRP), switching from ROM to ROM is as simple as doing a backup of one, wiping the device, and installing another ROM. Always save a back-up to your computer, and it's also a good idea (much easier in the end) to do a batch back-up through Titanium of all the user apps, so you can simply restore them to the new ROM instead of downloading them all over again and losing the app data.
Factory firmware can be obtained from sammmobile.com and are flashable with Odin (google it).

thanks for the help but why can't she update the stock rom from the settings though when she switched to tmobile? are the update locked to the att carrier?

thanks for the help but why can't she update the stock rom from the settings though when she switched to tmobile? are the update locked to the att carrier?

I wouldn't worry about it too much. The method Planterz gave you will give her the latest firmware. There's at least a few Lolipop ROMs for the Note 2

TechShui said:
I wouldn't worry about it too much. The method Planterz gave you will give her the latest firmware. There's at least a few Lolipop ROMs for the Note 2
Click to expand...
Click to collapse
Idk the site only has up to stock firmware 4.1.2...which is what she already has on her phone, but on the samsung site, it says they currently have android 4.4.2 for the SGH-I317 phone. i don't know how to get that

[Q] 404 to 4.2 upgrade

I trying to find a working firmware for verizon s3 sch-i535 I have it unlocked using odin. T-Mobile [who I want to use]
confirmed my phone is unlocked but they can't connect because my firmware needs to be updated from 404. I went and tried
to get update but run into webpage not found Does anyone have direct download for updates.
Every site I go to is a big runaround. It can't be that complicated can it? Hope I get some help here. Thanks.

H779 said:
I trying to find a working firmware for verizon s3 sch-i535 I have it unlocked using odin. T-Mobile [who I want to use]
confirmed my phone is unlocked but they can't connect because my firmware needs to be updated from 404. I went and tried
to get update but run into webpage not found Does anyone have direct download for updates.
Every site I go to is a big runaround. It can't be that complicated can it? Hope I get some help here. Thanks.
Click to expand...
Click to collapse
T-Mobile = GSM
"This is not a GSM device, it will not work on any GSM network worldwide."
You can try whatever you want, the phone will only support carriers using CDMA
You can find every firmware that has been officially released at SamMobile

Thankyou. For getting back.I still want to upgrade the firmware 404 is old

H779 said:
Thankyou. For getting back.I still want to upgrade the firmware 404 is old
Click to expand...
Click to collapse
If you already checked SamMobile you saw that you can choose between:
4.1.2
4.3
4.4.2
There is no reason for not using KitKat 4.4.2
Once installed you can flash latest TWRP using ODIN and then flash SuperSU (For root access) using TWRP. Rott access is highly suggested to remove the bunch of bloatware coming with Samsung's firmware and for grant sd card r/w access for all your apps.

I knew that my phone is unlocked so I did a lot of reading and found that if I go into service mode and enable hidden menus that I could
go into mobile networks then choose other networks. There it is GSM! now the next window is a menu to choose band or all bands.
now I took the battery out and installed the T-Mobile Sim powered back up and get a message: Welcome to T-Mobile. Tried making a call
IT WORKS! TEXT ok Internet ok. This was all done while still running stock 404 firmware. I'm no andriod genius and don;t know why all
the posts I've read saying it can;t be done. All I did was use the advise you guys gave did the proper download to unlock and root.
This issue is resolved. Thank you!

H779 said:
I knew that my phone is unlocked so I did a lot of reading and found that if I go into service mode and enable hidden menus that I could
go into mobile networks then choose other networks. There it is GSM! now the next window is a menu to choose band or all bands.
now I took the battery out and installed the T-Mobile Sim powered back up and get a message: Welcome to T-Mobile. Tried making a call
IT WORKS! TEXT ok Internet ok. This was all done while still running stock 404 firmware. I'm no andriod genius and don;t know why all
the posts I've read saying it can;t be done. All I did was use the advise you guys gave did the proper download to unlock and root.
This issue is resolved. Thank you!
Click to expand...
Click to collapse
Gratulations! I was pretty sure its not possible, especially for verizon devices

Yes I was surprised but I am persistent. Drives my wife crazy! Feel free to share this with others.

[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.
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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.
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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.