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?
Click to expand...
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.
Click to expand...
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.
Click to expand...
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
Click to expand...
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!
Click to expand...
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.
Click to expand...
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.

TWRP+SuperSU, TWRP+Magisk, or Custom ROM?

Last year, I bought my first ever Android - a Galaxy S7 Snapdragon. Unfortunately, I soon learned that without root & Titanium, Android provides no way to do a proper/complete backup (i.e. SmartSync doesn't backup any app data, & Helium backs up some but misses many - WhatsApp, LINE, Viber, etc). Thus I returned the S7, took a brief hiatus, & am now eagerly awaiting the arrival of a brand new Exynos S9
I wanted to ask for any quick advice as to the "suggested" approach for rooting, so I can hit the ground running as soon as this thing arrives. As I understand it, there are 3 main approaches:
1) Install TWRP, stick with the stock Samsung ROM & flash SuperSU
2) Install TWRP, stick with the stock Samsung ROM & flash Magisk
3) Install TWRP, flash a custom ROM that's already rooted
Between 1 & 2, my understanding is that Magisk is preferable to SuperSU as it essentially accomplishes the same thing but without necessarily blocking OTA updates or some financial applications from working. True? So is there even any reason to consider #1? If not, any insight as to choosing between #2 vs (any specific custom ROMs)?
My long-term priorities are simply for the phone to run as well as possible, with as little maintenance as possible (i.e. as far as ease of getting security updates goes). I'm not really into lots of customization, experimenting, etc - I'd prefer to just get something up & running, stable, & stick with it. I will be using T-Mobile though, so I guess in either case I'll need to install this to get WiFi calling & VoLTE working. Also, I want to make sure that whichever root solution I choose, it can coexist with Secure Startup (the S7 Snapdragon's root couldn't, which was a dealbreaker for me).
Any insight would be greatly appreciated. The phone arrives Tuesday, I can't wait to get started!

As soon as you flash twrp your not going to get OTA updates nevermind root.
sent from my Pixel 2 XL or Note FE

Unfortunately i made a silly mistake, i wiped the EFS partition of my G960FD once rooting the device while not having any backup for it
i tried flashing official rom, combined roms, cutoms roms; but always, i have the same problem "unknown IMEI and Baseband"
even, i tried to use ODIN Nand Erase All and installing new fresh official rom and also, have the same problem
is there any recommendations, please?

hanymedic said:
Unfortunately i made a silly mistake, i wiped the EFS partition of my G960FD once rooting the device while not having any backup for it
i tried flashing official rom, combined roms, cutoms roms; but always, i have the same problem "unknown IMEI and Baseband"
even, i tried to use ODIN Nand Erase All and installing new fresh official rom and also, have the same problem
is there any recommendations, please?
Click to expand...
Click to collapse
Samsung repair centre

*Detection* said:
Samsung repair centre
Click to expand...
Click to collapse
They asked me to pay 400$ for replacing the mother board
that's why i asked for having any solution

hanymedic said:
They asked me to pay 400$ for replacing the mother board
that's why i asked for having any solution
Click to expand...
Click to collapse
when you say combined roms do you mean the factory binary firmwares? because if flashing the combination firmware/factory binary followed by the usual rigmarole factory reset, nd reflash official fw doesnt work you could try rebuilding the partition using adb shell (root access needed for this though)
https://forum.xda-developers.com/note-4/general/fix-drk-dm-verity-factory-csc-serial-t3422965
this link isnt for the s9 smg960f but it did work for me when trying to solve the same issue on the sm-g950f,
anyway hope this helps in some way

[G930U] FEB-2019 - Official Stock Firmware OREO for Unlocked S7 (G930UUEU9CSA3)

[Info]
Make sure to flash with Odin3 v3.13.1.
I'd tried 3.12.x and had no luck. :silly:
Was able to flash my S7 from Verizon to unlocked with this.
Flashing with HOME_CSC will wipe your phone, only do this if you want a clean install.
The non-home CSC should leave all the user files untouched.
I've uploaded this because updato was miserably slow,
just don't want others to jump through as many hoops as I did to get it.
Good luck and thanks for stopping by! :fingers-crossed:
[Files]
3gb - G930UUEU9CSA3 Google Drive Link
3mb - Odin 3.13.1 Google Drive Link
[Contents of firmware zip]
AP_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT_meta.tar.md5
BL_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CP_G930UUEU9CSA3_CP11792902_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
HOME_CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5

sm g930u v9 bootloader
just wondering if somone could try to make a way for the v9 bootloader now eng boot ?hopefully someone fiqures it out cause im stuck at this point everything fails for me when trying to put on a custom recovery

Nelson456 said:
just wondering if somone could try to make a way for the v9 bootloader now eng boot ?hopefully someone fiqures it out cause im stuck at this point everything fails for me when trying to put on a custom recovery
Click to expand...
Click to collapse
can someone please check this out if their is a downgrade method etc boot recovery for v9 i would appreciate it this is insane i regret when i hit the ota update button

SethGandy said:
[Info]
Make sure to flash with Odin3 v3.13.1.
I'd tried 3.12.x and had no luck. :silly:
Was able to flash my S7 from Verizon to unlocked with this.
Flashing with HOME_CSC will wipe your phone, only do this if you want a clean install.
The non-home CSC should leave all the user files untouched.
I've uploaded this because updato was miserably slow,
just don't want others to jump through as many hoops as I did to get it.
Good luck and thanks for stopping by! :fingers-crossed:
[Files]
3gb - G930UUEU9CSA3 Google Drive Link
3mb - Odin 3.13.1 Google Drive Link
[Contents of firmware zip]
AP_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT_meta.tar.md5
BL_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CP_G930UUEU9CSA3_CP11792902_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
HOME_CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
Click to expand...
Click to collapse
It has worked for me, thank you very much.
.Details of my Galaxy s7:
-G930P
-Had the February 2019 update, Bootloader v9.
Thank you and luck to others.:laugh:

Can I flash this firmware on a G930a unlocked S7??

Neoguto said:
Can I flash this firmware on a G930a unlocked S7??
Click to expand...
Click to collapse
Should work just fine

Nice work...
Installed this with all tools in thread. Appears to take the image, updates Android to 32% then shows "Erasing". Reboots, says something about rebooting for Sim Updates, does this for a few mins. Then updates Android apps and boom, new stock phone no provider junk on it. Very nice. If I find any issues after the phone setup, I will post update, but if nothing, appears this is now a Stock unlocked phone.
Phone - SM-930P Sprint
Had most recent April Update
No longer on sprint, it's on GoogleFi now, but was unlocked by provider

Is this rootable or did I just take my Marshmellow S7 and destroy it's rootability??? FML why oh why didn't I ask this before doing it...

Hi i have one s7..i want to change to a new rom.whi h rom is better for gaming??(oreo,nougat,marshmalow ,kitkat).ty

Ap958571 said:
Hi i have one s7..i want to change to a new rom.whi h rom is better for gaming??(oreo,nougat,marshmalow ,kitkat).ty
Click to expand...
Click to collapse
I'd say oreo, the newer the better for the sake of actually being able to obtain the apks from the google play store.
I was able to run most games just fine with this rom. :good:

Is this specifically for TMobile users? It's just that i noticed it was TMB-$(version_info).
I guess my question is, does it matter if i use this on a Straight Talk phone, or should i suck it up and spend a day downloading the VMU rom from SAMMOBILE?
More specificity, if it matters. Previously i upgraded from stock Straight Talk rom that came with the phone to VMU, with the SM-G930U firmware. I'm looking to upgrade from Nougat to Oreo now though.
Currently my phone is running VMU-G930UUES4CRG3-20180809155130

SethGandy said:
Should work just fine
Click to expand...
Click to collapse
probably a dumb noob question, but do i have to request a carrier unlock on a 930A before i do this? it is currently carrier locked.
also, after doing whatever is required, will it get OTA unlocked updates?
EDIT: i went ahead and got my s7 unlocked with the ATT code. on trying to flash i got an SHA256 error. after some google i checked the bootloader is "8". is this why? update checker says i'm up to date with Dec 3 2018 security updates...

I'm sorry but is these Snapdragon S7 variants likely to have a Android 9 Rom in the future?
I know it's idiotic btw hope some responses would be left.

SethGandy said:
Flashing with HOME_CSC will wipe your phone, only do this if you want a clean install.
The non-home CSC should leave all the user files untouched.
Click to expand...
Click to collapse
This is the first time I've done this and other guides seems to say the opposite. Can someone confirm which I should use if I don't want to do a clean install?
Thanks

Will WiFi calling still work after installing this on a T-Mobile S7? Thank You.

SethGandy said:
[Info]
Make sure to flash with Odin3 v3.13.1.
I'd tried 3.12.x and had no luck. :silly:
Was able to flash my S7 from Verizon to unlocked with this.
Flashing with HOME_CSC will wipe your phone, only do this if you want a clean install.
The non-home CSC should leave all the user files untouched.
I've uploaded this because updato was miserably slow,
just don't want others to jump through as many hoops as I did to get it.
Good luck and thanks for stopping by! :fingers-crossed:
[Contents of firmware zip]
AP_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT_meta.tar.md5
BL_G930UUEU9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CP_G930UUEU9CSA3_CP11792902_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
HOME_CSC_OYM_G930UOYM9CSA3_CL14970140_QB21779605_REV02_user_low_ship_MULTI_CERT.tar.md5
Click to expand...
Click to collapse
Hi, im newbie here
I have g930v G930VVRU4API3 , an its alredy unlocked
I want update it to oreo, can i use this firmware??
Thx

kdkhimura said:
Hi, im newbie here
I have g930v G930VVRU4API3 , an its alredy unlocked
I want update it to oreo, can i use this firmware??
Thx
Click to expand...
Click to collapse
I have the same setup and it worked for me.

whatubeggin said:
I have the same setup and it worked for me.
Click to expand...
Click to collapse
any problem after u update ur phone??

change the samsung s7 logo at startup
Hello, I'm French I do not speak English well. I am looking for someone who can help me change the logo Samsung S7 powered by android at boot time.
Thanks in advance.

Bring aosp 9 plis

downgrade 8.0 to 6.0 a520

hi, I'd like to know if there were any way I could revert back to marshmallow without bricking the device. I was thinking about rooting my phone, download the stock a520 6.0 rom zip file and flash it with the recovery menu. First I don't wanna brick it, second I'm not sure I can find some flashable zip file.
I did this with my old Motorola moto g 3 and never had any problems.
do you guys think it'll work and so where I could find those files? also if there's any other safe way to do it share it please!
Thanks in advance!

nubry said:
hi, I'd like to know if there were any way I could revert back to marshmallow without bricking the device. I was thinking about rooting my phone, download the stock a520 6.0 rom zip file and flash it with the recovery menu. First I don't wanna brick it, second I'm not sure I can find some flashable zip file.
I did this with my old Motorola moto g 3 and never had any problems.
do you guys think it'll work and so where I could find those files? also if there's any other safe way to do it share it please!
Thanks in advance!
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Click to collapse
I don't think it will work because Samsung has anti rollback in its phones which prevents the bootloader from being downgraded. However, a system and boot flash might work. I don't know about the modem though.
Samsung is one of the few brands that implement it.
I don't really see the use though as it is quite possible to bootloop and if done incorrectly, could result in a hard brick.

nubry said:
hi, I'd like to know if there were any way I could revert back to marshmallow without bricking the device. I was thinking about rooting my phone, download the stock a520 6.0 rom zip file and flash it with the recovery menu. First I don't wanna brick it, second I'm not sure I can find some flashable zip file.
I did this with my old Motorola moto g 3 and never had any problems.
do you guys think it'll work and so where I could find those files? also if there's any other safe way to do it share it please!
Thanks in advance!
Click to expand...
Click to collapse
Quick question...
Why would you want to?
I did this with my old Moto X Play and bricked it

iloveoreos said:
I don't think it will work because Samsung has anti rollback in its phones which prevents the bootloader from being downgraded. However, a system and boot flash might work. I don't know about the modem though.
Samsung is one of the few brands that implement it.
I don't really see the use though as it is quite possible to bootloop and if done incorrectly, could result in a hard brick.
Click to expand...
Click to collapse
that is what I thought... I think the only real solution would be to find a custom Rom of the Stock 6.0 but untouched. It would not need the bootloader to be downgraded would it?
I really like samsung phones but I hate the way the treat costumers, it feels like being fooled.
Thank you for your reply though !

moozer said:
Quick question...
Why would you want to?
I did this with my old Moto X Play and bricked it
Click to expand...
Click to collapse
When I bought my Moto g 2015 it was very fast and that was surprising. All the updates started to drain the battery and make the device work slower . I tried almost all the custom Rom possible and after flashing back the stock 5.1 out of the box version I have to admit they wanted the device to become slow with all the updates.
Now when I received my A5 it was already running nougat. I think the best you can get from your phone is with the outbox version because everything is planned to be running perfectly so people buy it. For me even though it brings new features and stuff, update wont get you device any better.
So ya that's the reason I'd like to downgrade.

nubry said:
that is what I thought... I think the only real solution would be to find a custom Rom of the Stock 6.0 but untouched. It would not need the bootloader to be downgraded would it?
I really like samsung phones but I hate the way the treat costumers, it feels like being fooled.
Thank you for your reply though !
Click to expand...
Click to collapse
You could extract the system and boot out of the stock firmware, but I don't know if it's worth the risk.

nubry said:
When I bought my Moto g 2015 it was very fast and that was surprising. All the updates started to drain the battery and make the device work slower . I tried almost all the custom Rom possible and after flashing back the stock 5.1 out of the box version I have to admit they wanted the device to become slow with all the updates.
Now when I received my A5 it was already running nougat. I think the best you can get from your phone is with the outbox version because everything is planned to be running perfectly so people buy it. For me even though it brings new features and stuff, update wont get you device any better.
So ya that's the reason I'd like to downgrade.
Click to expand...
Click to collapse
Motorola got in trouble for that. Others too. It's illegal now, so you should leave out that theory.
I've had only positive experiences with my last 5 smartphones. Upgrading does precisely that...makes it better. An OEM would not produce an upgrade without testing it. That's why we had a better experience with Nougat and even better with Oreo.
What do you do differently with Oreo than you did with Nougat?

Help downgrading S20

Hello,
I tried to downgrade from G981U1UEU1DUB7 to G981U1UEU1CTKJ (both Android 11).
After odin it failed to get pass bootloader. It gave me the option of factory reset. I didn't want to lose my settings.
Flashing back to DUB7 revived the phone. I really want to get back to CTKJ because Samsung disabled third party fast chargers.
Any idea guys?

fatwok said:
Hello,
I tried to downgrade from G981U1UEU1DUB7 to G981U1UEU1CTKJ (both Android 11).
After odin it failed to get pass bootloader. It gave me the option of factory reset. I didn't want to lose my settings.
Flashing back to DUB7 revived the phone. I really want to get back to CTKJ because Samsung disabled third party fast chargers.
Any idea guys?
Click to expand...
Click to collapse
Back everything up and wipe data/factory reset when it boots to stock recovery and it'll boot..if not you're stuck i suppose

Were you ever able to downgrade from DUB7? I'm currently on DUB7 on my S20 and want to downgrade to a firmware with UI 3.0 so I can root my phone.

scarletwahoo said:
Were you ever able to downgrade from DUB7? I'm currently on DUB7 on my S20 and want to downgrade to a firmware with UI 3.0 so I can root my phone.
Click to expand...
Click to collapse
Did you find a way??
I am currently on UI 2.5 and want to upgrade to 3.0 but want to find the correct firmware that is rootable..