Converting P907 to P905 - Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting

Hi all,
I own a P907 for several months. When purchasing I thought I can flash a custom recovery and flash any rom I want.
It seems the AT&T Bootloader is unchangeable.
I had an idea…
I hard briked my LG D855 (G3) and brought it back to life with a procedure I found on the XDA forums, JTAG, writing directly to the board (needed to open the device).
Is it possible to write directly to the board and then it will be possible to flash a custom recovery?
Thank you.

yuval gur said:
Hi all,
I own a P907 for several months. When purchasing I thought I can flash a custom recovery and flash any rom I want.
It seems the AT&T Bootloader is unchangeable.
.
Click to expand...
Click to collapse
P907A and P905V acutually are identical tablets but bootloader is locked by provider, P907A is from AT&T, P905V is from Verizon.
As long as bootloader is locked, you cannot flash different firmware to your tablet. Try to flash by Odin, you'll see it fails immediately.
I can swap mainboard of P907A to a P905V tablet or vice versa without any problem because the hardware is identical.
The P900 Wifi version, bootloader is not locked, you can flash whatever firmware you want.

I was wondering the same thing about my P905V. Would a hardware flasher work to write the P905 bootloader to it? It's such a shame that this very expensive tablet is stuck on a bloated and outdated Android version. At this point, it's so slow I wouldn't mind risking destroying it to try to get CM14.1.
Has anyone tried this conversion?

any updates on this matter ? as i would like to install any ROM with android 7 / 8 or 9

Related

S3 LTE issues (bootloader unlocked) Need new radio?

I have a Verizon Galaxy S3 that I've had for a couple years that I bootloader unlocked first thing when I first purchased it. The baseband says "NE1"
I am running a later release of Cyanogenmod 11 (official) with TWRP recovery and I may be having LTE issues; unsure if it is because of the area I am living or if it is my phone itself but I do run into a handful of LTE issues.
I figure my best solution is to install the latest radio that is compatible with my open bootloader firmware. I would love to stick with my open bootloader instead of flashing the latest firmwares and risk locking the bootloader.
I need to know where and which latest bootloader I should flash and which method to flash with. Someone that can point me in the right direction is greatly appreciated.
Thanks for reading.
EDIT: Could I also be running an old phone FIRMWARE? As far as I am aware, the only thing that I can update being that I am unlocked bootloader is my baseband/radio- is there anything else that I should check to update to flash via odin?
stevey500 said:
I have a Verizon Galaxy S3 that I've had for a couple years that I bootloader unlocked first thing when I first purchased it. The baseband says "NE1"
I am running a later release of Cyanogenmod 11 (official) with TWRP recovery and I may be having LTE issues; unsure if it is because of the area I am living or if it is my phone itself but I do run into a handful of LTE issues.
I figure my best solution is to install the latest radio that is compatible with my open bootloader firmware. I would love to stick with my open bootloader instead of flashing the latest firmwares and risk locking the bootloader.
I need to know where and which latest bootloader I should flash and which method to flash with. Someone that can point me in the right direction is greatly appreciated.
Thanks for reading.
EDIT: Could I also be running an old phone FIRMWARE? As far as I am aware, the only thing that I can update being that I am unlocked bootloader is my baseband/radio- is there anything else that I should check to update to flash via odin?
Click to expand...
Click to collapse
Post a screen shot of your about phone screen if you can
Edit: you can update to the newest modem, that should (don't quote me) fix your issue
Sent from my Nexus 5

SM-G930A 6.0.1 unlocked running on T-Mobile flash to SM-G930T 8.0?

Hey guys,
My dad has a SM-G930A 6.0.1 unlocked running on T-Mobile. It is starting to show it's age (battery drain, apps not running like they should, etc.) and is still stuck on 6.0.1.. From my understanding, it should be possible to flash to SM-G930T, however I am a bit lost as to where to begin the process to do so. I tired going straight to 8.0 by flashing the SM-G930T 8.0 firmware files but this didn't work (I didn't think it would work, but it was worth a try). With that said, would it be better for me to just stick to updating to SM-G930A 7.0 via the guides posted, or is there a way for me to Flash the SM-930T 8.0 firmware? Thanks in advance.
leprkon said:
Hey guys,
My dad has a SM-G930A 6.0.1 unlocked running on T-Mobile. It is starting to show it's age (battery drain, apps not running like they should, etc.) and is still stuck on 6.0.1.. From my understanding, it should be possible to flash to SM-G930T, however I am a bit lost as to where to begin the process to do so. I tired going straight to 8.0 by flashing the SM-G930T 8.0 firmware files but this didn't work (I didn't think it would work, but it was worth a try). With that said, would it be better for me to just stick to updating to SM-G930A 7.0 via the guides posted, or is there a way for me to Flash the SM-930T 8.0 firmware? Thanks in advance.
Click to expand...
Click to collapse
Wow you guys really get screwed over there in the US with cell phones. It's a pain in the a** to do anything with your phones.
Anyway I'm guessing the phone was originally AT&T right? And now it's unlocked to any carrier.
If you just want to update the phone to the latest firmware then just flash AT&T Oreo. It won't affect the SIM it will still work as before.
If you want to flash any other firmware including T Mobile then you'll need to unlock the bootloader on the device and that's a whole different ball game. With plenty of guides on how to online.
Make sure you back up all the things you want to keep before flashing
cooltt said:
Wow you guys really get screwed over there in the US with cell phones. It's a pain in the a** to do anything with your phones.
Anyway I'm guessing the phone was originally AT&T right? And now it's unlocked to any carrier.
If you just want to update the phone to the latest firmware then just flash AT&T Oreo. It won't affect the SIM it will still work as before.
If you want to flash any other firmware including T Mobile then you'll need to unlock the bootloader on the device and that's a whole different ball game. With plenty of guides on how to online.
Make sure you back up all the things you want to keep before flashing
Click to expand...
Click to collapse
Thanks for the reply! I appreciate the direction. You are right, US phones are a pain. And yes, the phone was originally an AT&T phone, but was unlocked.
As for unlocking the bootloader, I've found different sources that say that unlocking the bootloader on this particular phone is not possible with this particular phone. I did read something about an engineering bootloader being used to get around a locked bootloader for rooting. Could this be used for flashing as well?
cooltt said:
If you want to flash any other firmware including T Mobile then you'll need to unlock the bootloader on the device and that's a whole different ball game. With plenty of guides on how to online.
Click to expand...
Click to collapse
That's not entirely true. Using Odin you can flash any USA firmware onto any other USA device, no bootloader unlocking required.
It's very common for people to flash G930U over their G930V/T/A/P devices to remove bloatware
leprkon said:
As for unlocking the bootloader, I've found different sources that say that unlocking the bootloader on this particular phone is not possible with this particular phone. I did read something about an engineering bootloader being used to get around a locked bootloader for rooting. Could this be used for flashing as well?
Click to expand...
Click to collapse
It's unstable and only lets the device charge up to 80%, your best bet woulld just be a full flash with Odin
This guide is a bit dated but it's the best one out there. Just make sure you google the latest Odin and use all 4 firmware files when flashing https://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Beanvee7 said:
That's not entirely true. Using Odin you can flash any USA firmware onto any other USA device, no bootloader unlocking required.
It's very common for people to flash G930U over their G930V/T/A/P devices to remove bloatware
It's unstable and only lets the device charge up to 80%, your best bet woulld just be a full flash with Odin
This guide is a bit dated but it's the best one out there. Just make sure you google the latest Odin and use all 4 firmware files when flashing https://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Click to expand...
Click to collapse
Thanks for the reply! I had tried flashing the 8.0 G930T variant last night with the latest version of Odin and the PrinceComsy version and got a Model Mismatch error. I read that the modified Odin3 v3.13.1_3B_PatcheD would let me flash the firmware and ignore the Model Mismatch error. However, I didn't go through with it because I was not sure if I would brick my phone and instead erred on the side of caution and made my post here. Would I be safe to flash the files from SM-G930T_1_20180625111401_xf3965l42p_fac onto my current device?
If your firmware files are from a trusted source like sammobile, updato or samfirmtool then it should be fine
Odin3 v3.13.1_3B_PatcheD seems to have positive feedback here on XDA so should be fine too https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Beanvee7 said:
If your firmware files are from a trusted source like sammobile, updato or samfirmtool then it should be fine
Odin3 v3.13.1_3B_PatcheD seems to have positive feedback here on XDA so should be fine too https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Click to expand...
Click to collapse
Thanks for the assist! Everything worked like a charm!
leprkon said:
Thanks for the assist! Everything worked like a charm!
Click to expand...
Click to collapse
Great glad it all worked out
leprkon said:
Thanks for the assist! Everything worked like a charm!
Click to expand...
Click to collapse
Greetings-
I apologize for jumping in an already created thread, but I think I am in the same situation, and like to verify with you both before I use the advice please. I have a SM-G930T that I just purchased, and really like to run a custom rom. But I understand I can not because I have Android 8 on it. I know how to use Odin, and have the latest version plus you guys talked about it here. I have also already downloaded the stock rom from sammobile site. What are my options? Is there a rom I can flash the phone with using Odin that would provide better performance, less G..bage, and more battery life? Is there a way for me to root the phone? I really need an app that requires the phone to be rooted.
Thanks
[email protected] said:
Greetings-
I apologize for jumping in an already created thread, but I think I am in the same situation, and like to verify with you both before I use the advice please. I have a SM-G930T that I just purchased, and really like to run a custom rom. But I understand I can not because I have Android 8 on it. I know how to use Odin, and have the latest version plus you guys talked about it here. I have also already downloaded the stock rom from sammobile site. What are my options? Is there a rom I can flash the phone with using Odin that would provide better performance, less G..bage, and more battery life? Is there a way for me to root the phone? I really need an app that requires the phone to be rooted.
Ok, so flash any unbranded Stock Rom for your device using this version of Odin which has been specifically modified to flash US devices. https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572 PatcheD.zip is the file you want to download.
Then when you have checked the phone is working ok on undrnaded firmware you can go ahead and root the device using this method which is again for US Qualcomm devices. https://www.****************/2018/0...on-galaxy-s7-and-s7-edge-on-android-8-0-oreo/
Take you time and read instructions.
Click to expand...
Click to collapse
Can I get unbranded stock firmware from sammobile? I understand the generic meaning of it, but I need more information on how to get them and what I need to know to work with them.
[email protected] said:
Can I get unbranded stock firmware from sammobile? I understand the generic meaning of it, but I need more information on how to get them and what I need to know to work with them.
Click to expand...
Click to collapse
If I understand it correctly there is no unbranded firmware for the US, its all network specific but you can flash unbranded UK firmware and it will work fine, UK BTU is the one you want from sammobile.
Load into the modified version of Odin and flash.
This is what I found, and downloading.
[email protected] said:
This is what I found, and downloading.
Click to expand...
Click to collapse
Yes that's the right one but like the beanvee and i have said there is a specific way to flash this stock then root the device.
You also need Samsung USB drivers installed so your pc can talk to your device, there's plenty of guides around how to flash with Odin and what you need to do beforehand, the only difference with you is the version of Odin your using and then the method of rooting afterwards.
cooltt said:
Yes that's the right one but like the beanvee and i have said there is a specific way to flash this stock then root the device.
You also need Samsung USB drivers installed so your pc can talk to your device, there's plenty of guides around how to flash with Odin and what you need to do beforehand, the only difference with you is the version of Odin your using and then the method of rooting afterwards.
Click to expand...
Click to collapse
Thanks. I have used Odin before, and I already downloaded the patchD version of Odin from the link. Thank you so much. I'll keep you posted on how it turns out. I still do not have a verified version of a custom recovery for this. Do you guys know of any? I found this link but the link to the suggested twrp does not work. I think it is this one. But I can not be sure. The original link points to a slightly different url.
[email protected] said:
Thanks. I have used Odin before, and I already downloaded the patchD version of Odin from the link. Thank you so much. I'll keep you posted on how it turns out. I still do not have a verified version of a custom recovery for this. Do you guys know of any? I found this link but the link to the suggested twrp does not work. I think it is this one. But I can not be sure. The original link points to a slightly different url.
Click to expand...
Click to collapse
Nope do not use that TWRP, it will flash TWRP but not boot it and you'll be stuck on Samsung logo forever.
There is still no way to unlock a Qualcomm snapdragon bootloader and i'm not sure anyone is working on it anymore.
All it means is you need to flash custom Roms via Odin or possibly the inbuilt S7 recovery, you just need to check the ROM is in a format which can be flashed that way.
With regards to finding a TWRP solution you'll have to do some serious searching on google and read everything.
There are already several de-bloated stock Roms on the forum if thats what you want to do. Root and custom recovery TWRP are two different things though, you get rooted so your good to go?
cooltt said:
Nope do not use that TWRP, it will flash TWRP but not boot it and you'll be stuck on Samsung logo forever.
There is still no way to unlock a Qualcomm snapdragon bootloader and i'm not sure anyone is working on it anymore.
All it means is you need to flash custom Roms via Odin or possibly the inbuilt S7 recovery, you just need to check the ROM is in a format which can be flashed that way.
With regards to finding a TWRP solution you'll have to do some serious searching on google and read everything.
There are already several de-bloated stock Roms on the forum if thats what you want to do. Root and custom recovery TWRP are two different things though, you get rooted so your good to go?
Click to expand...
Click to collapse
Yes root is my main goal, and you are right the debloated roms will work just fine. I can do w/o twrp. Just double checking here; since I am flashing the UK rom, and I believe one of the comments on this thread was how US images are locked tighter, would not I be able to find a UK version of TWRP for my phone? Just checking.
[email protected] said:
Yes root is my main goal, and you are right the debloated roms will work just fine. I can do w/o twrp. Just double checking here; since I am flashing the UK rom, and I believe one of the comments on this thread was how US images are locked tighter, would not I be able to find a UK version of TWRP for my phone? Just checking.
Click to expand...
Click to collapse
Now pull up a chair and listen closely.....99% of the American devices (including yours) have an extremely uncooperative Qualcommm Snapdragon cpu at it's heart and thus refuses point blank to play ball. The online community have done a fantastic job creating the modifications you are now using. The rest of the world (i'm happy to say) enjoy the S7 with an extreamly cooperative Exynos cpu at it's heart. It just loves to be fiddled with, it's a whore of a chip, constantly on the go with all kinds of neat tricks.
Anyhoo... my point is, the software has to be compatible with the hardware you catch my drift? All the cool little programs are written with a specific piece of hardware in mind, unfortunately for you guys Qualcomm is the ice queen.
cooltt said:
Now pull up a chair and listen closely.....99% of the American devices (including yours) have an extremely uncooperative Qualcommm Snapdragon cpu at it's heart and thus refuses point blank to play ball. The online community have done a fantastic job creating the modifications you are now using. The rest of the world (i'm happy to say) enjoy the S7 with an extreamly cooperative Exynos cpu at it's heart. It just loves to be fiddled with, it's a whore of a chip, constantly on the go with all kinds of neat tricks.
Anyhoo... my point is, the software has to be compatible with the hardware you catch my drift? All the cool little programs are written with a specific piece of hardware in mind, unfortunately for you guys Qualcomm is the ice queen.
Click to expand...
Click to collapse
Thank you so much. You guys are amazingly patient, and informative. Thank you for educating me, and helping me achieve my goal.
I have tried a few times but can not flash the files. I have attached screenshots, and followed the instructions here. Do you see anything I should be doing differently?
I initially thought the code came as one tar file, which I could flash, but it was a zip file, which I had to unpack.

recovery.img for T-mobile oneplus 7 pro

i have looked everywhere.
i am trying to find the stock recovery for oneplus 7 pro
- t-mobile version (if required)
10.0.1 oos
Honestly this phone has been the worst experience ever.
From t-mobile not allowing me access to files to fix my device, to forums being dead, sluggish and from several developers not caring about the issues others experience. to a single phone with 7 different variations. and the one I'm stuck with has 0% help.
ive seen multiple request for these files to go look and see "nvm i just flashed international rom..."
honestly it should be illegal for companies to not provide these files.
ivoe said:
i have looked everywhere.
Click to expand...
Click to collapse
That is because you are looking for something that does not exist. This phone doesn't have a recovery partition. On A/B partition devices, the recovery resides on the boot.img partition (along with kernel and ramdisk). The A/B partition scheme is very confusing if it is new to you (as it is to a lot of folks). You can possibly fastboot flash the stock boot.img partition, depending on what exactly you are trying to accomplish.
I don't buy carrier branded phones anymore, for some of the reasons you are experiencing. Converting the T-Mob 7 Pro to be "international", seems to be a pretty popular thing.
This device is far from being "dead" the most common thing to do with the T-Mo version is to flash the international ROM. The only thing people do on the T-Mo ROM is to SIM unlock, thus allow bootloader unlocking, then go right back to the international ROM.
CosmicInsight said:
This device is far from being "dead" the most common thing to do with the T-Mo version is to flash the international ROM. The only thing people do on the T-Mo ROM is to SIM unlock, thus allow bootloader unlocking, then go right back to the international ROM.
Click to expand...
Click to collapse
i have had to many issues with international that i msm back to tmobile.
i just didnt want to lose everything over an over doing this when things go wrong
i believe i have dumped the boot.img
i just hope it works when i do need it again.
Here's what I did whenever T-Mobile update to Android 10.0.1 I downloaded the OTA Update from off the internet then extracted it on my desktop then I used the payload-dumber-win64 to get the recovery and boot.img to use Incase I needed them. I used the extracted boot.img from the payload-dumber-win64 and followed instructions on how to use magisk patcher to patch my own boot.img. search Google for the T-Mobile update then use the tools to extract the whole thing.

Need help with s7 edge sm-g935v bootloop

Tried to root using a method that involved 4 odin files which I guess is most methods nowadays. Im used to old root methods were there is only one file I need to flash so I only flashed one file and it failed I don't have snapdragon chip set I don't think I googled my IMEI number and it said I didn't. Now my phone is stuck in Bootloop I tried flashing stock firmware I got from Sammobile and other sites making sure it was the latest version and it didn't work. I went into Maintenance recovery and tried factory reset it gave me the erasing screen but would still not boot up. I can still enter download mode and recovery but nothing seems to work please help.
Tried flashing ENG boot although I have no clue what it is but it made no difference. Tried also flashing TWRP I got error: SECURE CHECK FAIL: recovery. I did some research and apparently I might have a locked bootloader.
I just want to boot into my phone whatever it takes please help
Last OS update I got was either may or june
IMEI: 358166076487955
If your phone is model SM-G935V, aka Verizon, you have a Snapdragon chip. Therefore, there is no TWRP. And, depending on the bootloader version you had prior to attempting root, you might be out of luck.
What was your firmware version BEFORE you attempted root? (For example, mine is: G935VVRS4CRI1). The 5th digit from the right is the important one.
SkylineDriver said:
If your phone is model SM-G935V, aka Verizon, you have a Snapdragon chip. Therefore, there is no TWRP. And, depending on the bootloader version you had prior to attempting root, you might be out of luck.
What was your firmware version BEFORE you attempted root? (For example, mine is: G935VVRS4CRI1). The 5th digit from the right is the important one.
Click to expand...
Click to collapse
Thank you for your help but i figured it out. Finally found my specific firmware and got it to boot. the thing is I googled my IMEI and it says I dont have a snapdragon I have an exynos chipset. Did some more digging and it confirmed I had an exynos chipset. Problem is fixed though thank you for the help.
If you have Exynos then it is not a Verizon branded phone. Your phone might be working on the Verizon network, but....
Either way, thanks for the update. Glad you got it sorted.

Galaxy A13 5G SM-A136B [custom rom?]

Hello members,
Myphone: Galaxy A13 5G SM-A136B
I would like to use a 64-bit Android OS system with this phone.
The factory ROM is 32-bit.
I need a complete installation guide. And custom rom, custom kernel.
No one uses this? I won't choose another phone.
sorry i got one as a present but even thought i used weird aliexpress brand before (and acer) even though they had no guides i could follow the mediatek chipset guides more or less i hate brands like my first dvd player from sony complaining about region locks. I never had that before on the cheap stuff (just saying mainstream brands are usually more trouble and for more money.) but tried many of the same generated guides that say backup your phone before you start( i like that idea but before you can really backup you need root and fastboot seems to be non funtional these days cant we just mount a stock firmware img copy our needed root files in it and burn that like it is stock?) those img file are basiccaly just partions with files on it on intenal flash mem. at least i learned how to flash stock firmware after many failed root attempts and boot loops. i hope you find your info
Samsung Galaxy Wide6 factory ROM work? For SM-A136B
SM-A136S rom flash SM-A136B device.
CSC how to change it?
Wide6 ony SKC region. Sim unlock rom?
WDX-ZU said:
Samsung Galaxy Wide6 factory ROM work? For SM-A136B
SM-A136S rom flash SM-A136B device.
CSC how to change it?
Wide6 ony SKC region. Sim unlock rom?
Click to expand...
Click to collapse
No.

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