Creating a backup on S965U - Samsung Galaxy S9+ Questions & Answers

It seems that there are still no TWRP for the snapdragon vers for S9+ S965U. If i want to create a backup before flashing firmware or ROMs, how should I do so?

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KII-Lxx Models

Hi i have a GR5 KII-L33 model (single sim), can i use any rom for kiw-l21, l22, etc. (CM13 and others)?
do i need to do extra steps? i dont want to brick my phone :silly:
Hey
make sure that you take full stock backup before flashing the ROM
use fastboot boot twrp.img to run twrp without replacing stock recovery then backup everything
after that you can flash twrp with normal command then flash cm
after flashing the ROM, you need to follow these steps here, to get your single sim working
I answered you in cm thread and here to talk more [emoji14]
And yes you can use any CM/AOSP Roms, don't mess around with stock roms
Sent from my KIW-L21 using Tapatalk
AL_IRAQI said:
Hey
use fastboot boot twrp.img to run twrp without replacing stock recovery then backup everything
after that you can flash twrp with normal command then flash cm
Click to expand...
Click to collapse
hi, just curious about the backup everything.
does TWRP backup our stock recovery partition? because you said that we have to boot twrp then backup everything. i wonder if we restore using twrp, will our old/original recovery return? i know that we can use update.app to restore stock recovery and rom.
i am new to this huawei device since i've been using htc one x and did flash custom rom also twrp. but my device is KII-L22 and keen to flash crpalmer's CM.
thanks.

Twrp + ROM For Honor 5x - L24 varriant

Hi,
I want to install twrp in my 5x l24 us version. I read some threads here at XDA about twrp and rooting of honor 5x. But I am not sure where to start. I am hoping that someone here can guide me a little. I currently have emui 4.0 with marshmallow official from huawei.
My questions are:
1. Should I make nan droid backup of my phone before proceeding to install twrp? I am not sure what exactly is nan droid backup.
2. Is there any risk of device being bricked during the installation of twrp?
3. I read a thread named twrp for l24 l22 l23 and so on.. Does this method work anymore? Because I see users complaining about some twrp issues.
4. What are the safety measures I should do before doing any rooting, flashing?
Note - I don't do much rooting or flashing stuff that's why I am asking here. Thank you in advance
abbas99 said:
Hi,
I want to install twrp in my 5x l24 us version. I read some threads here at XDA about twrp and rooting of honor 5x. But I am not sure where to start. I am hoping that someone here can guide me a little. I currently have emui 4.0 with marshmallow official from huawei.
My questions are:
1. Should I make nan droid backup of my phone before proceeding to install twrp? I am not sure what exactly is nan droid backup.
2. Is there any risk of device being bricked during the installation of twrp?
3. I read a thread named twrp for l24 l22 l23 and so on.. Does this method work anymore? Because I see users complaining about some twrp issues.
4. What are the safety measures I should do before doing any rooting, flashing?
Note - I don't do much rooting or flashing stuff that's why I am asking here. Thank you in advance
Click to expand...
Click to collapse
It's all already answered, but OK.
0. You must unlock your bootloader before any of those,
1. you can try just booting into TWRP (fastboot boot recovery.img) and try backing up everything from there. I'm not sure that one works, I simply flashed TWPR and continued backing up from there,
2. No way you can brick it if you go by instructions; follow simple instructions from TWRP thread == recovery flash without issues. This device is flash-friendly
3. This one? That would be an official TWRP thread, so... it works, my L21 is on latest 3.1.1 build.
4. Always have a backup and don't flash anything you're not sure it will work and that's it. So, you've freshly flashed TWRP, first thing would be to make a system backup, that way, if anything goes wrong with rooting or custom ROMs, you can always go back to stock one without hastle.
Hope that helped.
ShadySquirrel said:
It's all already answered, but OK.
0. You must unlock your bootloader before any of those,
1. you can try just booting into TWRP (fastboot boot recovery.img) and try backing up everything from there. I'm not sure that one works, I simply flashed TWPR and continued backing up from there,
2. No way you can brick it if you go by instructions; follow simple instructions from TWRP thread == recovery flash without issues. This device is flash-friendly
3. This one? That would be an official TWRP thread, so... it works, my L21 is on latest 3.1.1 build.
4. Always have a backup and don't flash anything you're not sure it will work and that's it. So, you've freshly flashed TWRP, first thing would be to make a system backup, that way, if anything goes wrong with rooting or custom ROMs, you can always go back to stock one without hastle.
Hope that helped.
Click to expand...
Click to collapse
Hey I had EMUI 4.0 so Android 6.0.1 installed. So I unlocked bootloader and installed twrp without doing a backup. But now there is a big problem. No custom Roms will ever boot. So I cant boot to any rom and don't have a backup.
Florian990107 said:
Hey I had EMUI 4.0 so Android 6.0.1 installed. So I unlocked bootloader and installed twrp without doing a backup. But now there is a big problem. No custom Roms will ever boot. So I cant boot to any rom and don't have a backup.
Click to expand...
Click to collapse
Um, you did a clean install? I see you're from Germany, so I guess you're using KIW-L21 model, which is fully compatible with all ROMs out there (and it still didn't receive VoLTE update if I'm not wrong). Try clearing everything and flashing again, if not, restore stock recovery via fastboot and do a emergency reflash of full EMUI firmware.
ShadySquirrel said:
Um, you did a clean install? I see you're from Germany, so I guess you're using KIW-L21 model, which is fully compatible with all ROMs out there (and it still didn't receive VoLTE update if I'm not wrong). Try clearing everything and flashing again, if not, restore stock recovery via fastboot and do a emergency reflash of full EMUI firmware.
Click to expand...
Click to collapse
Yes I did a clean install with Aosp Rom, LineageOS, Ressurection remix, XenonHD Rom but every Rom encpountered a bootloop where the animation ran for 10 seconds and then stopped. After that the phone rebooted and so on . And do you have a link for flashable L21 EMUI stock rom? And stock firmware only installable with stock recovery or TWRP?
I also encountered this situation, how to solve, help me! Thank you
风雷萨斯 said:
I also encountered this situation, how to solve, help me! Thank you
Click to expand...
Click to collapse
Can u explain what u did clearly ?

Is TWRP involved into SafetyNet check ?

Hello, I've a question about TWRP and SafetyNet. I have an Honor 8 and this device is really complicated to pass SN (versus my other devices like OP3T, Nexus5, Redmi Note 4 which works without issues).
I gone back to stock ROM some days ago. After making a clean install and install Magisk, I checked to pass SN after several reboots.
So I decided to make a TWRP backup to keep a snapshot when Android passes SN. I allowed modifications into system partition and made my backup. After reboot, Android failed to pass SN check. As I only made modifications into TWRP, is it possible that TWRP could break the pass ? I thought it was only when I made modifications into my OS (I allowed modifications into TWRP but I didn't use it because I only made a backup). Or is it a bad coincidence ?
Regards
redking974 said:
Hello, I've a question about TWRP and SafetyNet. I have an Honor 8 and this device is really complicated to pass SN (versus my other devices like OP3T, Nexus5, Redmi Note 4 which works without issues).
I gone back to stock ROM some days ago. After making a clean install and install Magisk, I checked to pass SN after several reboots.
So I decided to make a TWRP backup to keep a snapshot when Android passes SN. I allowed modifications into system partition and made my backup. After reboot, Android failed to pass SN check. As I only made modifications into TWRP, is it possible that TWRP could break the pass ? I thought it was only when I made modifications into my OS (I allowed modifications into TWRP but I didn't use it because I only made a backup). Or is it a bad coincidence ?
Regards
Click to expand...
Click to collapse
Hi, I have the same problem with Xperia Z3 D6603. When I install TWRP, I failed to pass SN. It is annoying and I uninstalled it. So I think that TWRP in some ways involved in the SN.
since flashing TWRP change the stock recovery, it will break SN test

MEDIATEK flashing frp partition

Hello, i have phone from my friend.
It is Blackview A20 probably with android go 7.2.9
He want from me to clean phone because of he forgot e-mail so need to make FRP bypass
I can find only stock ROM in version 8.0
QUESTION:
Can be used scatter file from 8.0 to flash frp partition on version 7.2.9 via SP flash tool?
- i think that addresses will be different so it is not possible
- We do not want to flash whole device to newer version because we do not have backup....
The android is basically android go.
Thanks you in advance for help

Using it previous version of Android TWRP backup over Android 12 is this possible

I messed up and accidentally upgraded to Bootloader 4 I want to use the 420 ROM but it is on bootloader 3. I have a pwrp backup of the 420 ROM but it is again on Android 10 if I try to restore will I break my phone? Will it work? Anybody know. Any help would be greatly appreciated I detest Android 12
it should if it didnt modify the boot ... partions
Backup your current stuff
flash 10 if fail flash back or revert to stock firmware
Not sure I follow!? Currently I'm twrp and rooted on a version 4BL

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