Problem with Rom installation using Magisk (sm-g955f) - Samsung Galaxy S8 Questions and Answers

Hi everyone i'am facing a big probleme when i'am installing a custom rom and choose magisk as root mod my phone boot with a verification fail erase all data.
Then get stuck on bootlogo but when i flash with SUroot all work smooth Can someone explain me why?
I tried on 7.1.1 and 8.0 with dm verity fix and magisk 15.1 nothing work endless bootscreen .
I need a systemless root someone help me

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boot loop after root my device with kingroot on zui

hi guys yesterday i was enjoying my zuk zui with the latest update
but i decided to root my rom
after i restarted my phone it stuck in boot loop
and the zui recovery cant help me in formating my phone
so plz any help
i would be thankful
Just having same, but on CyanogenOS... Rooted with Kingroot, tried to replace kingroot with SuperSU with SuperSU-ME app and now it's stuck on Cyanogen logo...
Same **** here. I had to poweroff the phone using recovery option. I guess flashing again the signed CyanogenOS zip will fix this... Or at least hope so
Hi, I had the same problem. Someone managed to solve? I need to recover data because I can not lose them.

Xposed not installing on Nougat

Trying to install the official Xposed zip on my 6p with 7.1.2 on stock rom. It gets stuck in a boot loop every time and I have to run the uninstaller in TWRP to fix the boot loop. Any advice?
I have the same problem with nexus 6p 7.1.1
Would be great if someone knows how to fix it
Anyone else had any success flashing Xposed on nougat?

Trouble with unrooting and boot loops

Hey there!
So i thought it would be easy to unroot my S7 Edge SM-G935F on magisk or superSU without wipe all the data.... until i wanted to do so two days ago :silly:
Problem is no matter what "official" variation i use for magisk (uninstaller flashed in twrp or full uninstall / switch images in the manager) or superSU (option in the app) im getting a boot loop. can only get out of it when i reinstall magisk or superSU via twrp.
Today i found a flashable uninstaller for superSU, used it and it workted without causing the loop but it says i needed to reflash the original boot.img. but when im flashing the boot.img that i can find within the "AP" part from the decompressed rom im using its again boot loop time.
(After that ive tried to fix the loop caused under magisk uninstaller with flashing the boot.img out of the rom under twrp afterwards... but its looping on)
i realy dont understand that and its pretty frustrating because i've tried so many different things but all the time it ends in the loop.
hope someone can help me with that! :crying: (Rom is from Sammobile G935FXXS2DRA9_G935FDBT1DQJ1_DBT)
thanks for your time and answer
greetings
Chris

HELP! S8 won't boot up!

I've messed everything up and now I'm devastated!
My S8 stucks at the very first screen (where it says: SAMSUNG GALAXY S8 - powered by android). It doesn't boot further this very specific screen. I have tried to update Magisk and Magisk Manager but only Magisk Manager seems to get updated successfully while the app suddenly says that the latest version of Magisk Manager required Magisk V19.XX hence I've tried to install it via TWRP. According to log screen, I've managed to install magisk via TWRP but after booting up, I opened Magisk Manager where it now says that Magisk isn't installed. I therefore boot into TWRP and tried to fix it since some apps of mine that required root access wasn't working anymore. So, I thought I must have lost root access. I once again boot into recovery, I uninstalled magisk and install an older version of magisk and magisk manager and also the no_verity patch. After that my Galaxy S8 won't boot up. It just stucks at the very first screen. My S8 (international version) is still on Nougat stock samsung firmware and I can enter TWRP but the phone remains freeze and stubbornly refused to boot up.
I'm quite devastated and I hope you guys can help me fix this issue!
Thank you!
Hi, well sorry if I am stating the obvious but I would format and install one of the many custom roms available...
tosmaniac said:
Hi, well sorry if I am stating the obvious but I would format and install one of the many custom roms available...
Click to expand...
Click to collapse
Are there any solutions other than flashing a custom rom? Meanwhile, I have managed to flash Android 9 via ODIN and have TWRP installed but it won't boot up and stucks at the very first booting screens.
Any help would be appreciated!
Thanks!
cocolish said:
Are there any solutions other than flashing a custom rom? Meanwhile, I have managed to flash Android 9 via ODIN and have TWRP installed but it won't boot up and stucks at the very first booting screens.
Any help would be appreciated!
Thanks!
Click to expand...
Click to collapse
Have you tried just flashing stock rom only to see if it boots up. You may have to do a clean install.
Problem sounds like you haven't decrypted phone and flashed no verity zip file.
You won't need to flash a custom rom to fix this.
As for magisk have a look through this very helpful guide for installs and troubleshooting.
https://www.didgeridoohan.com/magisk/HomePage
I've managed to solve this issue by myself. But still, thank you so much! It's the thought that counts ? And yes, I've figured out that I haven't decrypt my S8. But everything is absolutely fine now and I feel extremely relieved. It took me 1 day to fix this major issue and I've encountered lots of difficulties while trying to fix this like bootloops, system won't boot up and managed to stuck at the very first booting screen again and the phone boot past the first booting screen and stucks at the second booting screen, and also bootloader error and stuffs like where realization hit me that I can't restore my nandroid backup while still on Nougat because after restoring it won't boot up. I therefore managed to flash Android 9 and twrp. My S8 is now on Android Pie with custom recovery and rooted (via Magisk).

Can't boot after installing Magisk

I've recently installed a custom rom(finally) on my redmi note 7, and after around a week I decided to install magisk and root it aswell... When i first installed magisk through twrp it booted successfully into android, and after trying to install a module and reboot my phone it got into a bootloop, is there any way to solve it?
aviv903 said:
I've recently installed a custom rom(finally) on my redmi note 7, and after around a week I decided to install magisk and root it aswell... When i first installed magisk through twrp it booted successfully into android, and after trying to install a module and reboot my phone it got into a bootloop, is there any way to solve it?
Click to expand...
Click to collapse
Maybe you already found a solution. But you can try going into twrp and flashing magisk uninstaller zip
i have faced this same problem and i did unroot through twrp so the problem solved . then recently i flashed magisk again but iam facing that problem again,.. I can't boot into system !
komiker said:
i have faced this same problem and i did unroot through twrp so the problem solved . then recently i flashed magisk again but iam facing that problem again,.. I can't boot into system !
Click to expand...
Click to collapse
I too had the same problem a few days ago. I had tried to update magisk but after flashing the latest version via twrp, the phone got stuck on bootloop. I uninstalled magisk using the uninstaller zip file then flashed the old version I had before (v19.3) and everything was back to normal.

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