Related
I have updated my Galaxy grand witj the official (BNB) update. But it lagging and slow and also hangs. Iwant to rollback to previous version is there any possibility to rollback without rooting the phone or custom rom?
Anish_ca said:
I have updated my Galaxy grand witj the official (BNB) update. But it lagging and slow and also hangs. Iwant to rollback to previous version is there any possibility to rollback without rooting the phone or custom rom?
Click to expand...
Click to collapse
Yes, its possible to rollback to previous version. Download the previous version of Stock ROM from sammobile and flash this ROM via Odin v3.07 then it will roll back to the previous version..
Hit thanks if my post is helpful.
Sent from my GT-I9082 using Tapatalk
Anish_ca said:
I have updated my Galaxy grand witj the official (BNB) update. But it lagging and slow and also hangs. Iwant to rollback to previous version is there any possibility to rollback without rooting the phone or custom rom?
Click to expand...
Click to collapse
No way to rollback into previous version, as no vendor supports downgrading . If u need your old software, just download Original stock firmware (definitely some older version :silly and reflash it with Odin as @Parth2187 mentioned:cyclops:
This is what I did. I had a nand bqckup of my 4.1.2 stock rooted rom.
1. Flashed 4.1.2 stock via Odin.
2. Root3d and flashed CWM recovery.
3. Once in recovery rolled back my original nand.
Please note if u end up in a boot loop. Make aure u go to stock recovery and do data/factory reset and wipe cache and u r good to go.
Hope helps. Worked foe me.
Sent from my GT-I9082 using XDA Premium 4 mobile app
OTA for Rooted Phone
DMJoh said:
No way to rollback into previous version, as no vendor supports downgrading . If u need your old software, just download Original stock firmware (definitely some older version :silly and reflash it with Odin as @Parth2187 mentioned:cyclops:
Click to expand...
Click to collapse
If i root my phone than can i get update from OTA??
If i want to unroot my Phone then how it is possible?
Anish_ca said:
If i root my phone than can i get update from OTA??
If i want to unroot my Phone then how it is possible?
Click to expand...
Click to collapse
If you root your phone, you won't be able to receive OTA updates and it will void your warranty. If you unroot you can get the OTA updates.
To root see this thread
If you want to unroot, see this thread.
Anish_ca said:
If i root my phone than can i get update from OTA??
If i want to unroot my Phone then how it is possible?
Click to expand...
Click to collapse
Try doing factory reset thats best thing possible u can do
abhi0502 said:
Try doing factory reset thats best thing possible u can do
Click to expand...
Click to collapse
I don't think a factory reset can unroot a device. I am not pretty sure about this, if u are successful in that, its okay. But factory reset just formats the internal SD card. It wont do anything with /Root directory. When you are rooting a phone, we flash SU to the /root directory.. Then how come a factory reset can unroot a device. Probably impossible! Correct me if i am wrong
DMJoh said:
I don't think a factory reset can unroot a device. I am not pretty sure about this, if u are successful in that, its okay. But factory reset just formats the internal SD card. It wont do anything with /Root directory. When you are rooting a phone, we flash SU to the /root directory.. Then how come a factory reset can unroot a device. Probably impossible! Correct me if i am wrong
Click to expand...
Click to collapse
+1...factory reset does not unroot...........flashing stock rom through odin and using traingle away ( not in that order ) would unroot the device..we are priviledged that our device has all prequisites for rooting and unrooting...
I tried flashing the old rom with odin but it gives some error :/ maybe my firmware has sm problem :|
XG.Matrix said:
I tried flashing the old rom with odin but it gives some error :/ maybe my firmware has sm problem :|
Click to expand...
Click to collapse
What problem you are getting?
Anish_ca said:
If i root my phone than can i get update from OTA??
If i want to unroot my Phone then how it is possible?
Click to expand...
Click to collapse
yes it is possible to get ota on a rooted phone
Dear all,
Well I dont know where to start. But here is what happened with my N7100 Note 2.
I was on the latest 4.4.2, the phone restarted suddenly one day and it just dont boot stuck at samsung logo,
flashed the 4.4.2 stock from sammobile. and it worked fine everything was perfect for a week, till it happened again
flashed the same rom. and here is where the trouble begins.
The IMEI changed to generic 00499XXX.., Serial No: 000000
i managed to downgrade to 4.1.2 with mobile odin, flashed a lot of stocks and customs as well. And after a very hard work for a week i manage to get back my IMEI and serial number back, now I backed up my EFS learned my lesson
Now i flashed the stock rom 4.1.1, phone is unlocked. cant make calls, or sms or data internet.
Now I have service: out of service, Bluetooth address: unavailable (while its in the efs folder the mac is in the file), Device status modified, And when I connect it to USB it wont recognize the phone until I have to dial *#7284# and change USB from modem to PDA, then save and reset. (EVERYTIME) I need a permanent fix as well for that.
Please I need help with those as i cant make my phone work.
Thanks and regards,
Mohamed Selim.
First and most important:
If you ever were on stock 4.4.x you can't downgrade to 4.1.x because of knoxed bootloader.
What you did with mobile odin was no real downgrade cause your bootloader wasn't touched.
Don't try to flash firmware beyond your current bootloader version.
Install Samsung Phone Info app from play store and look for actual bootloader version.
Androidwizzard said:
First and most important:
If you ever were on stock 4.4.x you can't downgrade to 4.1.x because of knoxed bootloader.
What you did with mobile odin was no real downgrade cause your bootloader wasn't touched.
Don't try to flash firmware beyond your current bootloader version.
Install Samsung Phone Info app from play store and look for actual bootloader version.
Click to expand...
Click to collapse
Well It actually did downgrade to 4.1.2 with Mobile odin and I checked the version and Baseband and everything it was the 4.1.2
Now I am on 4.1.1 stock. rooted and trying to figure out what to do now
onix17_5 said:
Well It actually did downgrade to 4.1.2 with Mobile odin and I checked the version and Baseband and everything it was the 4.1.2
Now I am on 4.1.1 stock. rooted and trying to figure out what to do now
Click to expand...
Click to collapse
As I said before: YOU DID NOT DOWNGRADE firmware to 4.1.2 with Mobile Odin, check with Info app from Samsung:
You will find bootloader between *ND3 and *NI1 and all are 4.4.2 KitKat
So, whatever firmware you try to flash under 4.4.2 is supposed to fail.
Androidwizzard said:
As I said before: YOU DID NOT DOWNGRADE firmware to 4.1.2 with Mobile Odin, check with Info app from Samsung:
You will find bootloader between *ND3 and *NI1 and all are 4.4.2 KitKat
So, whatever firmware you try to flash under 4.4.2 is supposed to fail.
Click to expand...
Click to collapse
I am not trying to argue here, And yes I do agree with you, it failed with i tried to downgrade with windows odin all the time, but acutally never failed with mobile-odin pro latest version. you dont have to believe me, I wont lie to you. I just need a solution for the problem im having now.
Thanks.
onix17_5 said:
I am not trying to argue here, And yes I do agree with you, it failed with i tried to downgrade with windows odin all the time, but acutally never failed with mobile-odin pro latest version. you dont have to believe me, I wont lie to you. I just need a solution for the problem im having now.
Thanks.
Click to expand...
Click to collapse
Mobile Odin does everything but doesn't flash bootloader so it is like flashing a custom rom which also doesn't contain bootloader.
PC Odin flashes complete firmware, so this is the only way to really up- or downgrade. Hope you understand the difference.
The only solution I see for you is to concentrate on 4.4.2 equal or up your actual bootloader version.
Androidwizzard said:
Mobile Odin does everything but doesn't flash bootloader so it is like flashing a custom rom which also doesn't contain bootloader.
PC Odin flashes complete firmware, so this is the only way to really up- or downgrade. Hope you understand the difference.
The only solution I see for you is to concentrate on 4.4.2 equal or up your actual bootloader version.
Click to expand...
Click to collapse
I do Understand the difference, and thanks for explaining more.
But I attached About my device
But any way beside all this points, I need to fix all the problems I am having either im on 4.1.1 or 4.4.2
Thanks.
onix17_5 said:
I do Understand the difference, and thanks for explaining more.
But I attached About my device
But any way beside all this points, I need to fix all the problems I am having either im on 4.1.1 or 4.4.2
Thanks.
Click to expand...
Click to collapse
I really want to help you out and I assure you that I know what I am talking about (take a look into my signature with stock roms and bootloaders).
There is indeed no solution on 4.1.1 and the screenshot doesn't show bootloader version. To believe what I say try to find out what BL version you are on. If it shows XXUFND3 up to XXUFNI1 you have the proof.
Androidwizzard said:
I really want to help you out and I assure you that I know what I am talking about (take a look into my signature with stock roms and bootloaders).
There is indeed no solution on 4.1.1 and the screenshot doesn't show bootloader version. To believe what I say try to find out what BL version you are on. If it shows XXUFND3 up to XXUFNI1 you have the proof.
Click to expand...
Click to collapse
kay my Bootloader is: N7100XXUFND4. Android Version: 4.1.1, you are right, I kinda understand what you were talking about now.
So now im all ears, Please help me solve my problems.
onix17_5 said:
Okay my Bootloader is: N7100XXUFND4. Android Version: 4.1.1
Well now how can I solve my problems, All ears
Click to expand...
Click to collapse
XXUFND3 was the first KitKat firmware for N7100 and yours was the second.
Three options:
1) Flash firmware using PC Odin at least ND4, maybe better NE1 or up
2) Flash through recovery any stock KitKat custom rom provided by wesamothman, cosmyndemeter or me
3) Flash through recovery any KitKat custom rom you like from development section here
4.3 custom roms may work also, but not 100% sure.
Beyond 4.3 I wouldn't recommend.
Androidwizzard said:
XXUFND3 was the first KitKat firmware for N7100 and yours was the second.
Three options:
1) Flash firmware using PC Odin at least ND4, maybe better NE1 or up
2) Flash through recovery any stock KitKat custom rom provided by wesamothman, cosmyndemeter or me
3) Flash through recovery any KitKat custom rom you like from development section here
4.3 custom roms may work also, but not 100% sure.
Beyond 4.3 I wouldn't recommend.
Click to expand...
Click to collapse
Okay, I will flash a stock Kitkat custom rom provided by you, Can you please require one for me. And I will flash it through recovery now.
onix17_5 said:
Okay, I will flash a stock Kitkat custom rom provided by you, Can you please require one for me. And I will flash it through recovery now.
Click to expand...
Click to collapse
Best and fastest one is XXUFNI1, NH2 and NG3 aren't bad either.
Do a clean installation (factory reset) and after setup device go back into recovery to flash SuperSu.zip.:highfive:
Androidwizzard said:
Best and fastest one is XXUFNI1, NH2 and NG3 aren't bad either.
Do a clean installation (factory reset) and after setup device go back into recovery to flash SuperSu.zip.:highfive:
Click to expand...
Click to collapse
Okay I staterd the download for XDA_XXUFNI1.zip and the BL NH2.
I think I got it, no BL just the XDA_XXUFNI1.zip and clean install it
Okay will be back when im done
onix17_5 said:
Okay I staterd the download for XDA_XXUFNI1.zip and the BL NH2.
should I flash the NH2 with odin after the rom? , or just the Rom without the NH2?
Click to expand...
Click to collapse
No need to flash BL cause you already have KitKat BL
Androidwizzard said:
XXUFND3 was the first KitKat firmware for N7100 and yours was the second.
Three options:
1) Flash firmware using PC Odin at least ND4, maybe better NE1 or up
2) Flash through recovery any stock KitKat custom rom provided by wesamothman, cosmyndemeter or me
3) Flash through recovery any KitKat custom rom you like from development section here
4.3 custom roms may work also, but not 100% sure.
Beyond 4.3 I wouldn't recommend.
Click to expand...
Click to collapse
Okay im done with this part flashed and step up, and installed superU.
So what next
onix17_5 said:
Okay im done with this part flashed and step up, and installed superU.
So what next
Click to expand...
Click to collapse
After reboot everything should be fine: Stable, rooted, fast, right?
Androidwizzard said:
After reboot everything should be fine: Stable, rooted, fast, right?
Click to expand...
Click to collapse
Yes rooted fast everything is stable, but all the problems I said in the first post still there
onix17_5 said:
Yes rooted fast everything is stable, but all the problems I said in the first post still there
Click to expand...
Click to collapse
You mean really everything
out of service,
Bluetooth address: unavailable
Device status modified -> that's ok
USB doesn't recognize the phone
Androidwizzard said:
You mean really everything
out of service,
Bluetooth address: unavailable
Device status modified -> that's ok
USB doesn't recognize the phone
Click to expand...
Click to collapse
Yes still out of service
Bluetooth address: unavaliable
USB doesnt recognize the phone until i have to do *#7284# and change USB to PDA, this its okay but once i restarted the phone I have to do it again save and reset.
onix17_5 said:
Yes still out of service
Bluetooth address: unavaliable
USB doesnt recognize the phone until i have to do *#7284# and change USB to PDA, this its okay but once i restarted the phone I have to do it again save and reset.
Click to expand...
Click to collapse
Ok, last one is driver related to your PC (Mac or Windows?), are you running Kies?
For BT I found this APP
For the first issue I think about IMEI lost, pls check
Hello XDA,
I am looking to update my Tab S to Lollipop. Problem is, I rooted it almost a year ago and do not know the method in which I did it. I'm guessing without knowing any other information, my best best bet would be downloading 5.0.2 from Sammobile (currently doing so) and using Odin 3.09? Is this the easiest way?
Also, if I'm located in the USA, what region do I want to use for the download? I didn't see anything that applied to me, so I picked an unknown region. Is there something else I should be looking for?
Android Version
4.4.2
Kernel Version
3.4.39-2947015
[email protected] #1
Build Number
KOT49H. T800XXU1ANK1
SE for Android Status
Enforcing
SEPF_SM-T800_4.4.2_0040
The quickest way would be to use Samsung Kies. The download is quicker but it installs immediately so you don't get to keep the download.
EDIT: Also the US region is called Cellular South.
Sent from my SM-T700 using Tapatalk
noxarcana said:
The quickest way would be to use Samsung Kies. The download is quicker but it installs immediately so you don't get to keep the download.
Click to expand...
Click to collapse
Is that what Smart Switch Mobile is? Do you happen to have a link for a short guide? And will I still need to download the stock firmware when using Kies?
And thanks for clearing up the region question.
http://www.samsung.com/in/support/usefulsoftware/KIES/#none
Use the link to download Kies, install, connect tablet to pc and open Kies. From there you'll know what to do. No guide necessary. No need to download the firmware either. Kies is automated once you select upgrade.
EDIT: There are two versions of Kies. Grab Kies3.
Sent from my SM-T700 using Tapatalk
Thank you! You were right, Kies3 immediately recognized that I did not have the latest firmware. So now I'm waiting for the update to download and implement itself.
I am in the exact same situation as you.
Not able to take the OTA even if i undo root via supersu
Kies detected that there was an update. But BEEN HOURS with "Preparing software update components for Galaxy Tab S"
I closed it and I am trying with Smart Switch .. same .. been 1 hour now and nothing happens.
How could I flash the latest firmware? Thanks
nickatnite905 said:
Thank you! You were right, Kies3 immediately recognized that I did not have the latest firmware. So now I'm waiting for the update to download and implement itself.
Click to expand...
Click to collapse
mic141414 said:
How could I flash the latest firmware? Thanks
Click to expand...
Click to collapse
You may want to check with other sources, but my initial thought before getting a response here was to download the current firmware build and use the Odin tool. I'm assuming it would work for you.
nickatnite905 said:
You may want to check with other sources, but my initial thought before getting a response here was to download the current firmware build and use the Odin tool. I'm assuming it would work for you.
Click to expand...
Click to collapse
I have downloaded the stock ROM from some Russian web site which then directed me to some Google drive, a 1.6GB download, in my case SEE-T805XXU1BOD1-20150511102748.zip
I then used Odin to flash it - Select BL for "T805XXU1BOG2_bootloader.tar.md5" (stock bootloader) and AP for "T805XXU1BOD1_T805OXX1BOD1_T805XXU1BOD3_HOME.tar.md5" (stock ROM)
I believe that the above procedure works under almost all circumstances, root or no.
I then made plenty of backups with TWRP so that I do not have to use Odin anymore, I simply restore the stock ROM from backup (plus I get all my applications and system as I want it rather than having to re-do everything from scratch each time).
And just to say that all the OSes I have downloaded so far, they all had problems, so I end up restoring the stock ROM within hours of installing a new OS.
This firmware is for Sprint Galaxy S6 [G920P] phones ONLY
This will not damage any of your stored files or app settings
WARNING! Do not unplug your phone once you have started
Samsung Sprint Galaxy S6 BOL1 Android 5.1.1 Stock Rom
Download Firmware
https://www.dropbox.com/s/n0p0rmi2d873h1d/G920PVPU3BOL1_SPT3BOL1_SPR_Sprint_USA_5.1.1.zip?dl=0
Alternate Firmware Download Mirror
https://www.androidfilehost.com/?fid=24052804347838029
Alternate Firmware Download Mirror
https://www.androidfilehost.com/?fid=24345424848486725
Download Odin
http://odindownload.com/SamsungOdin/#.Vr3P1_IrKJI
1. Put your phone in download mode by turning it off,
Press and hold Volume Down+Power+Home Button
And then pressing Volume Up: Continue
Phone should then say Downloading...
Do not turn off target
2. Unzip Odin.exe to your desktop
Open Odin
After connecting your phone while in download mode to your desktop
Odin should say Added!
Leave the options alone
*DO NOT SELECT REPARTITION!
3. Unzip the G920PVP firmware
Using Odin click AP and select the firmware .tar file
Click Start
Wait a few moments until Odin says SUCCESS!:highfive:
DONE! Then your phone should reboot and you'll see the Android icon/Boot Logo sequence
Check your phone for any updates while you are on this fresh new install to be on the latest firmware
BONUS! In case you get stuck in download mode
Hold Volume Up+Down Home+Power buttons
Your phone should exit and reboot
Thank you for this! Very much appreciated.
You're welcome, new firmware mirror up
Thanks for this thread. I have MM stock, but the hotspot now requires a reboot to get it working. Can I use this method to flash back to Lollipop? I saw a thread saying you cannot flash anything older than 5.1.1. That was an older thread, and basically he was told he can't flash 5.0.2 back on his S6 because he already had 5.1.1.
badkarmah187 said:
Thanks for this thread. I have MM stock, but the hotspot now requires a reboot to get it working. Can I use this method to flash back to Lollipop? I saw a thread saying you cannot flash anything older than 5.1.1. That was an older thread, and basically he was told he can't flash 5.0.2 back on his S6 because he already had 5.1.1.
Click to expand...
Click to collapse
Hotspot should be fixed in my next ROM
badkarmah187 said:
Thanks for this thread. I have MM stock, but the hotspot now requires a reboot to get it working. Can I use this method to flash back to Lollipop? I saw a thread saying you cannot flash anything older than 5.1.1. That was an older thread, and basically he was told he can't flash 5.0.2 back on his S6 because he already had 5.1.1.
Click to expand...
Click to collapse
Well, I flashed my stock Note 5 rom over to the MM leak and now I'm stuck with it till the official release is out and I can flash back to stock and receive the latest official updates as they come out.
What happened was I wiped the drive and then flashed the lower # official roms and all it did was bootloop or just wouldn't flash the version at all and would just give me an error while trying to flash.
probleme
mykehdoom said:
Thank you for this! Very much appreciated.
Click to expand...
Click to collapse
my phone stiil blocked on recovery mode after mm 8.0 download with dm-verity verification failed. Chek drk first i can try this ?
I flashed backed to 5.1.1, I left my phone sitting with wifi enabled, sprint downloaded the 6.0.1 update and gave me no choice but to install it again. I had no way to back out of it. I put 5.1.1 on my phone twice today and it keeps sending me to MM. Is there a way to flash back to 5.1.1 and disable OTA without rooting the phone..? if not then you really can't go back because Sprint will force the update to your phone.
i guess there should be an option in setting/update for you to uncheck the "update".
racimrl said:
my phone stiil blocked on recovery mode after mm 8.0 download with dm-verity verification failed. Chek drk first i can try this ?
Click to expand...
Click to collapse
The DRK error means that someone changed your phone's IMEI but did it improperly. Now the phone will not even turn on past the Samsung screen. I run phone a business and offer a service to fix it - PM me if interested
MindTrix said:
I flashed backed to 5.1.1, I left my phone sitting with wifi enabled, sprint downloaded the 6.0.1 update and gave me no choice but to install it again. I had no way to back out of it. I put 5.1.1 on my phone twice today and it keeps sending me to MM. Is there a way to flash back to 5.1.1 and disable OTA without rooting the phone..? if not then you really can't go back because Sprint will force the update to your phone.
Click to expand...
Click to collapse
wait a minute... you can roll back a stock unrooted rom without having to root??
I need tether. I have to have tether. They forced the Marshmallow update without my permission. Complete BS. Now I have no tether.
jerry43812 said:
wait a minute... you can roll back a stock unrooted rom without having to root??
I need tether. I have to have tether. They forced the Marshmallow update without my permission. Complete BS. Now I have no tether.
Click to expand...
Click to collapse
Rolling back is as simple as using ODIN and flash the stock rom, I rooted 6.0.1 and its starting to grow on me but I can flash back to stock 5.1.1 even if I was not rooted, I only root because like you I need tether and so far this was the only way on 6.0.1 MM
Man oh man, I thought I broke my charging port the day after I rooted. I was about to cry myself to sleep for the next 2 months.
Going to MM
Should I use this to go back to stock and then take the OTA to get to the latest firmware? Or would it be a better idea to download the current firmware from Sammobile?
guitarpager said:
Should I use this to go back to stock and then take the OTA to get to the latest firmware? Or would it be a better idea to download the current firmware from Sammobile?
Click to expand...
Click to collapse
Don't go the SAMMOBILE page, I have linked to a much faster site: http://forum.xda-developers.com/spr...uide-links-files-update-root-restore-t3366862
hey guys i am from india and i have been using unlocked sprint s6 from a month and everything was perfect till i flashed the marshmallow firmware , i have lost the sim signal ,, need help plz.. anybody know how to get back the signal....
dksahil said:
hey guys i am from india and i have been using unlocked sprint s6 from a month and everything was perfect till i flashed the marshmallow firmware , i have lost the sim signal ,, need help plz.. anybody know how to get back the signal....
Click to expand...
Click to collapse
This guide should help you: http://forum.xda-developers.com/spr...uide-links-files-update-root-restore-t3366862
I can't say if it actually works as I live in the US and my phone is not unlocked, but it seems to have helped others.
Here a link for the latest stock TAR files: http://forum.xda-developers.com/spr...uide-links-files-update-root-restore-t3366862
Tried to use this file and it says "SW REV CHECK FAIL. DEVICE 4 BINARY 3"
Xabring said:
Tried to use this file and it says "SW REV CHECK FAIL. DEVICE 4 BINARY 3"
Click to expand...
Click to collapse
This is a very old thread. That error means that your phone has updated to a software version of 6 or 7 and you can't revert back to 5.
Xabring said:
Tried to use this file and it says "SW REV CHECK FAIL. DEVICE 4 BINARY 3"
Click to expand...
Click to collapse
koop1955 said:
This is a very old thread. That error means that your phone has updated to a software version of 6 or 7 and you can't revert back to 5.
Click to expand...
Click to collapse
More accurately, it means that your bootloader version is 4, and you can't flash anything lower.
But no, you can't go back to Android 5
Is it possible to downgrade my SM-G891A on firmware 7.0 back down to 6.01?
did you updated OTA?
yes, but only with Odin ..
so would be a complete wipe
miniminus said:
yes with but only with Odin ..
so would be a complete wipe
Click to expand...
Click to collapse
Okay how would I do that? I don't mid if I wipe my phone
ParkerSTP said:
Okay how would I do that? I don't mid if I wipe my phone
Click to expand...
Click to collapse
Download latest 6.0.1 firmware released then flash it with odin
What is the baseband version of your 7.0?
Jimmyvb98 said:
What is the baseband version of your 7.0?
Click to expand...
Click to collapse
The baseband of my version is G891AUCU2BQA7. Also where would I find the link to the 6.0.1 firmware, and what version of odin should I use?
ParkerSTP said:
The baseband of my version is G891AUCU2BQA7. Also where would I find the link to the 6.0.1 firmware, and what version of odin should I use?
Click to expand...
Click to collapse
Any answer to the location of the 6.0.1 firmware, I too would like to revert in order to get rooted.
ParkerSTP said:
Is it possible to downgrade my SM-G891A on firmware 7.0 back down to 6.01?
Click to expand...
Click to collapse
Okay, yes it is
Heres my post when I was searching for it myself.
https://forum.xda-developers.com/s7-active/development/how-downgrade-7-0-to-6-0-1-t3590649
The download mirror link is in there
Download and extract using the password in that forum
Boot into download mode and flash it with Odin.
I can confirm this works.
Just got an S7 Active G891A and I want to downgrade the firmware to root it. It's on the QB2 Firmware. Is it possible to downgrade without risking bricking it?