Develop Bugs

Downgrading 6.0.1 to 5.1.1

Hi if anyone can help- I'm on the Verizon Samsung Galaxy Note 4 after 2 Note 7's and a Note 3 before that on Biggin's so I've sorta been out of the root game. I want to downgrade from 6.0.1 to 5.1.1. I am downloading the full firmware for the Note 4 from further back in this thread (N910VVRU2CPA1) and am currently on (N910VVRU2CPG2).
From what I understand, I need to do a factory reset, then go to Odin and flash the firmware. I have Odin 3.10.7 and am downloading the N910VVRU2CPA1 as we speak. I see 'hsbadr' firmwares in his thread and the PIT file TRLTE_USA_VZW.pit which I'm not sure is compatable pit file for the specific 5.1.1 firmware or the necessary pit file is included in the full firmware and can anyone tell me if these are the right steps?are these the right steps Any information would be greatly appreciated,
Thanks

@tjmethod by chance how did you process go, did you manage to root and unlock bootloader?

djisback said:
@tjmethod by chance how did you process go, did you manage to root and unlock bootloader?
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Click to collapse
I bought the phone already with 6.0.1 on it and read that you cannot unlock/ root it with mm on it and can only be done after downgrading to 5.1.1 so I haven't done anything yet

I'm in the same boat...Coming from a n7. Bought a n4 on eBay...It's got 601. Want to root...Guess we need to downgrade....Is it possible?

tjmethod said:
Hi if anyone can help- I'm on the Verizon Samsung Galaxy Note 4 after 2 Note 7's and a Note 3 before that on Biggin's so I've sorta been out of the root game. I want to downgrade from 6.0.1 to 5.1.1. I am downloading the full firmware for the Note 4 from further back in this thread (N910VVRU2CPA1) and am currently on (N910VVRU2CPG2).
From what I understand, I need to do a factory reset, then go to Odin and flash the firmware. I have Odin 3.10.7 and am downloading the N910VVRU2CPA1 as we speak. I see 'hsbadr' firmwares in his thread and the PIT file TRLTE_USA_VZW.pit which I'm not sure is compatable pit file for the specific 5.1.1 firmware or the necessary pit file is included in the full firmware and can anyone tell me if these are the right steps?are these the right steps Any information would be greatly appreciated,
Thanks
Click to expand...
Click to collapse
sudermatt said:
I'm in the same boat...Coming from a n7. Bought a n4 on eBay...It's got 601. Want to root...Guess we need to downgrade....Is it possible?
Click to expand...
Click to collapse
Before you can start rooting, you'll need to be on 5.1.1 BPA1. If you're currently on 6.0.1, just download the BPA1 firmware from Sammobile, factory reset on 6.0.1, then flash BPA1 stock via Odin.

quinciebee said:
Before you can start rooting, you'll need to be on 5.1.1 BPA1. If you're currently on 6.0.1, just download the BPA1 firmware from Sammobile, factory reset on 6.0.1, then flash BPA1 stock via Odin.
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Click to collapse
Hi thanks, I had called Samsung and talked to top tier tech support and was told that once the phone has been upgraded to 6.0.1., it cannot be downgraded. and that i need to search the rooting sites and try to find where someone has found a breach or workaround for unlocking the bootloader which will usually have a bounty but I dont know. top tier tech support has always been good. Do you think thats false it cannot be downgraded?

tjmethod said:
Hi thanks, I had called Samsung and talked to top tier tech support and was told that once the phone has been upgraded to 6.0.1., it cannot be downgraded. and that i need to search the rooting sites and try to find where someone has found a breach or workaround for unlocking the bootloader which will usually have a bounty but I dont know. top tier tech support has always been good. Do you think thats false it cannot be downgraded?
Click to expand...
Click to collapse
It's definitely false, when I rooted my phone, I downgraded from 6.0.1 to 5.1.1 without any issues.

quinciebee said:
It's definitely false, when I rooted my phone, I downgraded from 6.0.1 to 5.1.1 without any issues.
Click to expand...
Click to collapse
I will definately give it a go when I have the time, have you flashed a rom and if so which one, there must be some or some tweaks to get rid of the lag?

tjmethod said:
I will definately give it a go when I have the time, have you flashed a rom and if so which one, there must be some or some tweaks to get rid of the lag?
Click to expand...
Click to collapse
I'm currently using CM13 because of Xposed and overall stability, but there are newer roms out there.

quinciebee said:
I'm currently using CM13 because of Xposed and overall stability, but there are newer roms out there.
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Click to collapse
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-

tjmethod said:
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-
Click to expand...
Click to collapse
You want the PA1. It's really easy. Just sounds more complicated then it is. I am using the PaulPizz rom. It is very stable, good battery life, and spen and sview work. If you need any help, let me know.

ziggy71 said:
You want the PA1. It's really easy. Just sounds more complicated then it is. I am using the PaulPizz rom. It is very stable, good battery life, and spen and sview work. If you need any help, let me know.
Click to expand...
Click to collapse
Thanks bro I don't if I'll have time til this weekend to do this- Does this rom have tweaks to fix the aggravating galaxy lag? With a non rooted phone there's goin into recovery and deleting cache, DU speed and phone booster, cleaned but it's like they all have it- thanks again- lookin forward to rooting this damn thing

tjmethod said:
I am a little confused as to whether I've found the right firmwares but I've found the firmwares here:
https://forum.xda-developers.com/no...mware-firmware-kernel-modem-recovery-t2942937
If I am downgrading to 5.1.1. which this phone was obviously on before, I don't know what this phone was on since it currently is on the PL1 build which are not one of the two 6.0.1. builds on this page. I don't even know if that matters.. Anyway, the two 5.1.1. builds are PA1 and OK3. Do you know where any other firmwares out there that might show my current one and the previous build that it came from?
Thanks-
Click to expand...
Click to collapse
Yeah they're out there but that thread hasn't been updated recently. Basically the order after pf3 is pg2, pj2, and then cpl1. The one you want, if your planning on rooting, is bpa1. Also, as far as your question in the op about the pit file, it should really only be used if absolutely necessary. It's in case your partitions have been corrupted for some reason and you need to repartition your device.
Edit- I was going to link to those other firmwares but they are buried in the thread that your already looking in. Either way they aren't necessary for you to unlock your bootloader, you can go straight from cpl1 to bpa1.

kevintm78 said:
Yeah they're out there but that thread hasn't been updated recently. Basically the order after pf3 is pg2, pj2, and then cpl1. The one you want, if your planning on rooting, is bpa1. Also, as far as your question in the op about the pit file, it should really only be used if absolutely necessary. It's in case your partitions have been corrupted for some reason and you need to repartition your device.
Edit- I was going to link to those other firmwares but they are buried in the thread that your already looking in. Either way they aren't necessary for you to unlock your bootloader, you can go straight from cpl1 to bpa1.
Click to expand...
Click to collapse
Hey thanks for confirming all this. So all I need to download and install is the bpa1 firmware via Oden with the AP button I think- I've got a few different versions of Oden on my pc. It's been a while since I've flashed firmware on a phone but I remember it was easy. So just save my pictures, any files, etc. on the sd card, remove it, then do a factory reset or when I put the setting into usb download mode, and flash the firmware this will automatically factory reset the phone? Also earlier today Verizon has been trying to push an software upgrade. After I unlock the bootloader and install twrp then flash a rom, do I need to somehow disable the update notice. I remember having to do that once with another phone.
What rom are you on? Thanks again for the Info-
TJ

tjmethod said:
Hey thanks for confirming all this. So all I need to download and install is the bpa1 firmware via Oden with the AP button I think- I've got a few different versions of Oden on my pc. It's been a while since I've flashed firmware on a phone but I remember it was easy. So just save my pictures, any files, etc. on the sd card, remove it, then do a factory reset or when I put the setting into usb download mode, and flash the firmware this will automatically factory reset the phone? Also earlier today Verizon has been trying to push an software upgrade. After I unlock the bootloader and install twrp then flash a rom, do I need to somehow disable the update notice. I remember having to do that once with another phone.
What rom are you on? Thanks again for the Info-
TJ
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Click to collapse
Yeah that all sounds spot on. I would definitely do the factory reset before you start, but other than that your good. To block the updates, you can uninstall the SDM apps. There are 2 of those and you'll need root to remove them, but you can disable them without root with that debloater tool. The rom I'm currently using is kind of work in progress. I have a couple stock based roms in the dev section, one is stock_plus that has a stock feel with some mods added and the other is Modest Rom that is got some grace apps added and system ui mods. You can find them here and here if you want to check them out.

kevintm78 said:
Yeah that all sounds spot on. I would definitely do the factory reset before you start, but other than that your good. To block the updates, you can uninstall the SDM apps. There are 2 of those and you'll need root to remove them, but you can disable them without root with that debloater tool. The rom I'm currently using is kind of work in progress. I have a couple stock based roms in the dev section, one is stock_plus that has a stock feel with some mods added and the other is Modest Rom that is got some grace apps added and system ui mods. You can find them here and here if you want to check them out.
Click to expand...
Click to collapse
Awesome, I'm going to check those out but I forgot the biggest question of all... how to get rid of the Galaxy lag- is there a rom or tweak where this can be fixed since recovery cache delete and cleaning tools dont really do much?
Thanks again-

tjmethod said:
Awesome, I'm going to check those out but I forgot the biggest question of all... how to get rid of the Galaxy lag- is there a rom or tweak where this can be fixed since recovery cache delete and cleaning tools dont really do much?
Thanks again-
Click to expand...
Click to collapse
Custom kernels help a lot. The problem is it's kind of slim pickings for our specific model, but some of the international kernels work well too. Oscar kernel is made for the 910v so that's probably the most reliable but if your like me, I like to use a permissive kernel and Ram kernel is not a bad choice for that though it's not as feature rich.

kevintm78 said:
Custom kernels help a lot. The problem is it's kind of slim pickings for our specific model, but some of the international kernels work well too. Oscar kernel is made for the 910v so that's probably the most reliable but if your like me, I like to use a permissive kernel and Ram kernel is not a bad choice for that though it's not as feature rich.
Click to expand...
Click to collapse
I really dont know the difference... from what I remember a kernel is the layer between the software and the hardware- a key component of the os. I'm guessing the permissive ones can be used for different roms or firmware? You can probably tell I really don't that much about the root game. The last time I flashed a firmware was on my note 3 after I bricked it. Then rerooted and got on to biggins rom which was great ut I never understood or learned how to use xposed. Anyway, I downloaded Modest Rom, PJ2 _STOCK .tar and am downloading cpl1_tar but I know that once I flash bpa1 firmware which puts the phone back on 5.1.1. I see your roms are 6.0.1 roms, after I flash the bpa1, will the bootloader be unlocked? If so can I then just flash the cpla1_tar or is that not a full firmware? or use one of the two 6.0.1 firmwares from where I found the cpa1? Are the kernels different from 6.0.1 and 5.1.1 and where to find the downloads?? I appreciate the tips especially coming from a develpoer and i'm happy to make a donation- I'm not sure how?
Thanks again!

tjmethod said:
I really dont know the difference... from what I remember a kernel is the layer between the software and the hardware- a key component of the os. I'm guessing the permissive ones can be used for different roms or firmware? You can probably tell I really don't that much about the root game. The last time I flashed a firmware was on my note 3 after I bricked it. Then rerooted and got on to biggins rom which was great ut I never understood or learned how to use xposed. Anyway, I downloaded Modest Rom, PJ2 _STOCK .tar and am downloading cpl1_tar but I know that once I flash bpa1 firmware which puts the phone back on 5.1.1. I see your roms are 6.0.1 roms, after I flash the bpa1, will the bootloader be unlocked? If so can I then just flash the cpla1_tar or is that not a full firmware? or use one of the two 6.0.1 firmwares from where I found the cpa1? Are the kernels different from 6.0.1 and 5.1.1 and where to find the downloads?? I appreciate the tips especially coming from a develpoer and i'm happy to make a donation- I'm not sure how?
Thanks again!
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Click to collapse
Hey buddy, did you get it figured out? I broke my arm at work on Sunday and of course it's my right arm so I'm having some issues responding back on my note with one hand. I bet I've dropped this thing 20 times already.

kevintm78 said:
Hey buddy, did you get it figured out? I broke my arm at work on Sunday and of course it's my right arm so I'm having some issues responding back on my note with one hand. I bet I've dropped this thing 20 times already.
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Click to collapse
Oh man that sucks- hopefully they gave you some good pain meds. Anyway, I havent taken th plunge yet- once I get on to 5.1.1 then twrp, I want to go on to 6.0.1 but am unsure as to what point the bootloader is unlocked or exactly what to do to upgrade to 6.0.1 once I crack the bl. I just dont want to go through the dreaded set up everything twice.

please help need advice !!!!

I need help, I don't know wtf I was thinking, my sprint s6 is on CPF4 and sim UnLocked, I was going to upgrade to PL3, with Odin, run CF-Auto Root Next, Then TWRP, Then Flash TDH-JR v1.0 .... I Ran CF-Autoroot First like a idiot, I'm rooted on CPF4, tried to go ahead and remain calm and used Flashify to Flash TWRP, only to get stock recovery and if it worked was going to stay on CPF4 and figure something out but, this phone is Sim Unlocked, and I'm starting to worrying I'm going to lose it
UPDATE: SOLVED , NOW ROCKIN DEBLOATED. JAH, ITS BADASS, INSTALLING BLACKED OUT EVERYTHING RIGHT NOW!!! QUESTIONS JUST ASK, OR ILL BE BACK TO TELL WHAT I DID WRONG
Ps: HAHA AND IM STILL UNLOCKED USING METROPCS

Did you get sorted out or do you still need help? Typically if you update an unlocked phone's firmware, you will be locked again and will need to unlock. Not what you want to hear, I am sure, but that is as much as I know on the topic.

not for me. I am using an unlocked S6 Sprint now outside US and have been updating firmware so many times, the phone wont be locked again UNLESS you change the CSC (SPR, XAS...).

yaibakt said:
not for me. I am using an unlocked S6 Sprint now outside US and have been updating firmware so many times, the phone wont be locked again UNLESS you change the CSC (SPR, XAS...).
Click to expand...
Click to collapse
Interesting and I did not know that. How would the OP know if it was safe to upgrade? Check that his current (or prior version, not sure where he is in the process) was SPR and then proceed to use a TAR that was the same?

koop1955 said:
Interesting and I did not know that. How would the OP know if it was safe to upgrade? Check that his current (or prior version, not sure where he is in the process) was SPR and then proceed to use a TAR that was the same?
Click to expand...
Click to collapse
Not necessary either.
I did tried to download different tar files of the same Sprint firmware version which are SPR, XAS,... and guess what? They are exactly the same, even every bit.
That means, OP could flash any csc tar file, as long as its for s6 sprint (g920p***** tar file). The phone stays unlocked still.
The only thing that locked my s6 back was when i used Samsung phone info app to change the CSC. The phone rebooted and locked. I had to unlocked it again and it costed me some bucks...

How did you unlock your phone?

Please can someone take the time out to try and help me!

I just purchased a G960F samsung s9 only yesterday it came with android 9 installed, I promptly flashed Twrp and then flashed the updated bootloader and modem firmware and flashed SoLdieR9312s G96XCSF2 ROM all went well at least I thought so, upon checking the rom I have no baseband at all, I have flashed the bootloader and modem firmware in twrp and it installs ok in twrp but still the rom has no baseband, I then tried about 5 different roms in odin to go back to stock and each time they fail installing with SW REV. CHECK FAIL always appearing, i have uploaded a screen shot of my phone in download mode and maybe someone can kindly help me track the correct rom for my phone to take it back to stock, please try and help im pretty desperate now. this is the url for my screenshot https://ibb.co/r7BB8dy

You cannot downgrade the bootloader, yours is currently at version 5, you must flash a stock ROM with minimum version 5 bootloader
Example shown here is version 5
G960FXXU5CSF2

Thank you for the prompt reply so is G960FXXU5CSF2 the rom I need

vuittion said:
Thank you for the prompt reply so is G960FXXU5CSF2 the rom I need
Click to expand...
Click to collapse
You can flash that one yes, it is released in Germany (DBT) right now, doesn't matter which country you flash, but you can flash back to your own region once it is released

*Detection* said:
You can flash that one yes, it is released in Germany (DBT) right now, doesn't matter which country you flash, but you can flash back to your own region once it is released
Click to expand...
Click to collapse
Thanks to you my Samsung S9 is once again alive and kicking I was up most of the night downloading rom after rom to no avail, thank you so much for all your help.

vuittion said:
Thanks to you my Samsung S9 is once again alive and kicking I was up most of the night downloading rom after rom to no avail, thank you so much for all your help.
Click to expand...
Click to collapse
No problem, and this firmware has some new features to play with too, Night mode in camera modes is new and a few other things like live focus blur adjust, a new charging screen etc

Unlocked At&t Android 10 update outside US

Greetings,
I'm super new here, also a tech noob so pls be gentle.
I purchased an unlocked At&T Note 10+, and i am living in Malaysia. Little that I know At&T would never send updates to out network, and that I require an At&t SIM in order to get the updates. Currently I am stucked with Android 9, ONE UI 1.5, with no hope of getting anything higher than that.
My question is, how can i get the updates besides flashing a new firmware? I tried connecting to Smart Switch on my laptop, and all it can says is that my software is up to date on SJ8 (ATT).
Hope there's a way other than flashing. HELP.

mohdazrimny said:
I want to thank everyone for the help. I have flashed my phone with the latest XAA rom, n all is running great. I have also received OTA May security updates.
Thanks again!
Click to expand...
Click to collapse
Hi Mohd Azrimny,
Am in the same boat as you. In Malaysia and have the note 10 plus at&t version. How did you manage? I am using Odin and getting error message connection failed. Not sure what is the problem.
Can you point me from where you downloaded the firmware? I am suspecting that is the culprit.
Thanks!

mohdazrimny said:
Greetings,
I'm super new here, also a tech noob so pls be gentle.
I purchased an unlocked At&T Note 10+, and i am living in Malaysia. Little that I know At&T would never send updates to out network, and that I require an At&t SIM in order to get the updates. Currently I am stucked with Android 9, ONE UI 1.5, with no hope of getting anything higher than that.
My question is, how can i get the updates besides flashing a new firmware? I tried connecting to Smart Switch on my laptop, and all it can says is that my software is up to date on SJ8 (ATT).
Hope there's a way other than flashing. HELP.
Click to expand...
Click to collapse
I'm sorry but I don't think there's other way around, you'll need to flash another firmware.
I have an Unlocked Verizon Note10+, the first thing I did after getting it out of the box was flash the unbranded firmware (CSC: XAA).
Ever since, I've had OTA updates as quick as they're released for N975U1.

joyousfrank said:
I'm sorry but I don't think there's other way around, you'll need to flash another firmware.
I have an Unlocked Verizon Note10+, the first thing I did after getting it out of the box was flash the unbranded firmware (CSC: XAA).
Ever since, I've had OTA updates as quick as they're released for N975U1.
Click to expand...
Click to collapse
I see...tq man. Can u help me out with one last thing? As they are thousands of firmware out there, which one should i choose? Can i simply choose any unbranded firmware (N975U1) from any month security updates n just flash it? I just need a stock ROM, not the latest should be ok as the OTA will take care of the rest.
Right now i'm at nov 2019 security updates SJ8 (ATT).
Thanks in advance.

mohdazrimny said:
I see...tq man. Can u help me out with one last thing? As they are thousands of firmware out there, which one should i choose? Can i simply choose any unbranded firmware (N975U1) from any month security updates n just flash it? I just need a stock ROM, not the latest should be ok as the OTA will take care of the rest.
Right now i'm at nov 2019 security updates SJ8 (ATT).
Thanks in advance.
Click to expand...
Click to collapse
Well, unfortunately I'm not sure about previous versions, however I'm leaving attached my SW information, my CSC is XAA.
You can download it from sammobile or frija (this is way faster).
Hope this helps,
Regards.

So, knowing you are a noob is half the solution already...
I highly recommend you look for Frija on the internet. Download the tool, search for the phone you have , it is a SM-N975U , and since you want to get rid from the AT&T version, you can install the SM-N975U1 version with XAA as CSC, that Samsung themselves push updates to. Even if they will not, you can always download the next revisions..
I assume you know how to use Odin..

joyousfrank said:
Well, unfortunately I'm not sure about previous versions, however I'm leaving attached my SW information, my CSC is XAA.
You can download it from sammobile or frija (this is way faster).
Hope this helps,
Regards.
Click to expand...
Click to collapse
Thank you man! For real!

BigE said:
So, knowing you are a noob is half the solution already...
I highly recommend you look for Frija on the internet. Download the tool, search for the phone you have , it is a SM-N975U , and since you want to get rid from the AT&T version, you can install the SM-N975U1 version with XAA as CSC, that Samsung themselves push updates to. Even if they will not, you can always download the next revisions..
I assume you know how to use Odin..
Click to expand...
Click to collapse
Yes i do know how to use Odin. Just soo terrified if i'd use the wrong firmware. I've also downloaded the firmware yesterday, but still not sure of it until now. So thank you, its clear now.

mohdazrimny said:
Yes i do know how to use Odin. Just soo terrified if i'd use the wrong firmware. I've also downloaded the firmware yesterday, but still not sure of it until now. So thank you, its clear now.
Click to expand...
Click to collapse
No worries, as Odin and the phone check revisions and suitability. If not the right firmware, it should not write it.

BigE said:
No worries, as Odin and the phone check revisions and suitability. If not the right firmware, it should not write it.
Click to expand...
Click to collapse
I want to thank everyone for the help. I have flashed my phone with the latest XAA rom, n all is running great. I have also received OTA May security updates.
Thanks again!

BigE said:
So, knowing you are a noob is half the solution already...
I highly recommend you look for Frija on the internet. Download the tool, search for the phone you have , it is a SM-N975U , and since you want to get rid from the AT&T version, you can install the SM-N975U1 version with XAA as CSC, that Samsung themselves push updates to. Even if they will not, you can always download the next revisions..
I assume you know how to use Odin..
Click to expand...
Click to collapse
Thank you!!!!!!!!:good::good:

joyousfrank said:
I'm sorry but I don't think there's other way around, you'll need to flash another firmware.
I have an Unlocked Verizon Note10+, the first thing I did after getting it out of the box was flash the unbranded firmware (CSC: XAA).
Ever since, I've had OTA updates as quick as they're released for N975U1.
Click to expand...
Click to collapse
hello, i know this an old thread, and yes. im also super super green and noob on all of this.. i too have Unlocked Verizon Note10+,
and after a month or so, it cant detect my local carrier as well (maxis) and i receive a message constantly about the sim is not verizon sim
so i was hoping , flashing the firmware would eliminate this problem
what i did was :
1) download odin v3.14
2)download frija 1.4.3
3) download firmware SM-n975u1 csc XAA from frija
4)tried to flash using odin..and failed multiple time
5)tried download a patched version of odin 3.14
6)download a bunch of other firmware from USA verizon, malayisia and others
7)failed and failed and failed again
so sifu please help me?where did i go wrong? will flashing new firmware fix my carrier problem? or its a verizon issue?because it was working fine a month ago ..please help..

FAIL! SHA256 is invalid! When Trying to flash unbranded software on SM-G988U

Hi all,
I am trying to reflash the unbranded firmware back on my unlocked S20 Ultra with Odin 3.14.4. I was able to flash the T-mo version, and currently my phone is tmo branded, so that worked, but everytime I try to flash back i get the SHA256 error. I do not know if it is because I am trying to flash the wrong firmware or I am doing something else wrong.
Can anyone point me in the right direction?
Thanks everyone.

chris5h said:
Hi all,
I am trying to reflash the unbranded firmware back on my unlocked S20 Ultra with Odin 3.14.4. I was able to flash the T-mo version, and currently my phone is tmo branded, so that worked, but everytime I try to flash back i get the SHA256 error. I do not know if it is because I am trying to flash the wrong firmware or I am doing something else wrong.
Can anyone point me in the right direction?
Thanks everyone.
Click to expand...
Click to collapse
Ensure you don't any other usb devices plugged into the pc.

Thank you for the reply, that is not the issue though. Tested re flashing the Tmo firmware that is currently on it and it flashed ok. Its just tryign to reflash to the original unbranded that fails.

Got the answer. I needed to use the patched version of Odin
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572

chris5h said:
Got the answer. I needed to use the patched version of Odin
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Click to expand...
Click to collapse
I am considering doing this to get the June security update. Any issues with using the "other" version of Odin? Is your phone still official. Also curious is stock advance messaging still works.
Thanks.
v/r
"D"

d_ganggreen said:
I am considering doing this to get the June security update. Any issues with using the "other" version of Odin? Is your phone still official. Also curious is stock advance messaging still works.
Thanks.
v/r
"D"
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Click to collapse
So I installed and it went back to the stock firmware. No longer do I have the tmobile bootscreen or additional software. What I am concerned with though is I tried an OTA update and I get: Your current software version isn't supported. Visit a service center.
What can I do about this?

d_ganggreen said:
So I installed and it went back to the stock firmware. No longer do I have the tmobile bootscreen or additional software. What I am concerned with though is I tried an OTA update and I get: Your current software version isn't supported. Visit a service center.
What can I do about this?
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Click to collapse
If you used HOME_CSC, that might be your culprit.
I had this issue when I flashed TMO firmware on the unlocked phone. With me being lazy, I didn't want to start from scratch and flashed HOME_CSC to experience this exact issue. As soon as I flashed with full wipe, this issue was solved.

Stank0 said:
If you used HOME_CSC, that might be your culprit.
I had this issue when I flashed TMO firmware on the unlocked phone. With me being lazy, I didn't want to start from scratch and flashed HOME_CSC to experience this exact issue. As soon as I flashed with full wipe, this issue was solved.
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That was the issue. I factory reset from the phone itself and all is good now. I do NOT have the native advanced messaging though

d_ganggreen said:
That was the issue. I factory reset from the phone itself and all is good now. I do NOT have the native advanced messaging though
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You mean Samsung messenger?

Stank0 said:
You mean Samsung messenger?
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Yes, that was the reason I initially put the tmo firmware on. So the samsung messages app had RCS. With the stock, I have lost it.

chris5h said:
Got the answer. I needed to use the patched version of Odin
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
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Thanks so much for this information! I was confused as to why it wasn't working. This worked like a charm!

chris5h said:
Hi all,
I am trying to reflash the unbranded firmware back on my unlocked S20 Ultra with Odin 3.14.4. I was able to flash the T-mo version, and currently my phone is tmo branded, so that worked, but everytime I try to flash back i get the SHA256 error. I do not know if it is because I am trying to flash the wrong firmware or I am doing something else wrong.
Can anyone point me in the right direction?
Thanks everyone.
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Hi Chris
I'm from Pakistan and just flashed one UI 5 firmware of t mobile on my at&t s20 ultra and now my sim is not working by giving me a notification (sim 1 not allowed)
also tried to downgrade to an AT&T one UI 4 version but giving me the same SHA256 error
thanks in advance