Database Develop

SuperSU & CM13

Is it actually possible to make SuperSU work on CM13 without bricking your device etc?
I have spent the last 2 days googling this and reading various (mostly old, outdated) posts about how it's a bad idea or maybe not, but they are typically from 2.5x or 2.6x or earlier SuperSU versions.
My tablet, the only actively developed non-stock rom available for it is CM13. That is literally it.
However, I would like to have SuperSU features, especially compatibility with SUhide etc.
So, I am wondering if it's possible?
Do the current (2.78+) SuperSU versions play nice with CM13?
Can I just flash it in from the SuperSU app (I have bought pro version if that matters)? or Flashfire? or from TWRP recovery, whichever way is best? And, do I need to do anything else first?

Wellll, I went ahead and did it. Happy to report everything's working fine. So that's that.

DryEagle said:
Wellll, I went ahead and did it. Happy to report everything's working fine. So that's that.
Click to expand...
Click to collapse
Wanna share how you did it ?
. . . I'm running the latest CyanogenMod 13 om my GT-N5100 ( Samsung galaxy note 8 ) and can't get i to work without bricking the device.

Warlock_SVG said:
Wanna share how you did it ?
. . . I'm running the latest CyanogenMod 13 om my GT-N5100 ( Samsung galaxy note 8 ) and can't get i to work without bricking the device.
Click to expand...
Click to collapse
Well, I downloaded the latest supersu zip (2.78), installed the supersu app from market, installed supersu pro from market (i already bought this long ago), then used flashfire to flash the zip. and it just worked. i'm using latest cm13 nightly on nvidia shield.

Got it working I downloaded "BETA-SuperSU-v2.77-20160827190633.zip" and Installed it in TWRP, systemless mode.

Warlock_SVG said:
Got it working I downloaded "BETA-SuperSU-v2.77-20160827190633.zip" and Installed it in TWRP, systemless mode.
Click to expand...
Click to collapse
you can download 2.78 zip here: https://download.chainfire.eu/1001/SuperSU/UPDATE-SuperSU-v2.78-20160905010000.zip the 2.76 or 2.77 had some problem, dont remember which one, but 2.78 is completely solid

How do I install SuperSU in "systemless mode"? I have a google nexus 10 running the latest CM13 Release + gapps.

[Lemmy] said:
How do I install SuperSU in "systemless mode"? I have a google nexus 10 running the latest CM13 Release + gapps.
Click to expand...
Click to collapse
I used supersu-v2.78-201609011115 for my CM13 devices http://forum.supersu.com/topic/152/supersu-v2-78-release/2 the installer decide if it needs to be installed in "systemless mode" so no need to worry about that
You might need to install the SupperSU app from the store yourself.

Warlock_SVG said:
I used supersu-v2.78-201609011115 for my CM13 devices http://forum.supersu.com/topic/152/supersu-v2-78-release/2 the installer decide if it needs to be installed in "systemless mode" so no need to worry about that
You might need to install the SupperSU app from the store yourself.
Click to expand...
Click to collapse
does that work with the "official cyanogen recovery" as well, or should I install TWRP first?
...ok with the cyanogen recovery it did _not_ work, the installer said something about "patching sepolicy failed".
Any other suggestions?

[Lemmy said:
;68885779]does that work with the "official cyanogen recovery" as well, or should I install TWRP first?
...ok with the cyanogen recovery it did _not_ work, the installer said something about "patching sepolicy failed".
Any other suggestions?
Click to expand...
Click to collapse
Install twrp.

Spent my 6 hours in trying this crap.....after installation, my phone doesn't reboot rather says "secure boot error" installed cm13 6 times and faced the same problem.....now I won't install it unless I get a tested and confirmed procedure

Will follow-up with you on the next post...

ALI EHTISHAM BUKHARI said:
Spent my 6 hours in trying this crap.....after installation, my phone doesn't reboot rather says "secure boot error" installed cm13 6 times and faced the same problem.....now I won't install it unless I get a tested and confirmed procedure
Click to expand...
Click to collapse
Here's what I do to get my S3 going...
With the latest TWRP as always since running into issues with flashing when i had CWM quite some time ago.
There are 3 files i place in my external MicroSD...
CM13, Open Gaaps for Android 6 (i use the pico) and the SuperSU 2.78 SR1 zip file directly from the official website (though 2.76 should work).
First, when in TWRP, select wipe then advanced then the top 5 selections leaving the bottom 2 alone. When completed, hit the bottom center home selection to go into the main menu. Again, select wipe then select the data option to the right of the advanced tab you were in before. It requires you to type yes then proceed. Once that is done, go back to the main menu and be sure you do this exactly! Select the reboot and then recovery. Once your back into the TWRP recovery then select install and go to the MicroSD card with the 3 files... Now select the order of files to flash beginning with CM13 then add zip then the GApps then add zip then the SuperSU then begin the flash process. Be sure to wipe the dalvik cache then reboot the system.
SuperSU reboots it again shortly afterwards as part of its installation process.
Once your all done setting up the initial system setup you should go directly to the SuperSU app to set up what you need to.
Though my personal procedure is a bit more involved, this is as basic as it gets.
For your specific system, i can't say that i have ever even used it so please pardon me deeply if I left anything out and if someone can chime in with anything else, I'm sure it would be much appreciated.
Good luck.

Cyanogenmod 13 no longer boots (but stock does)

This just started a couple days ago. I rebooted the phone after SuperSU updated its binary, and the phone would not boot past the "starting apps" screen. I've tried everything I can think of - disabling systemless root and Xposed, upgrading CM 13, downgrading it, wiping everything and doing a fresh install, restoring stock 20i with TWRP and reinstalling CM... nothing works. It either hangs on the boot animation or the "starting apps" screen. I finally managed to get stock 20o loaded with the KDZ method and everything seems to work, but I would really like to have CM back. Can anyone help?

Same issue here, was running resurrection remix, powered off to swap battery and stuck at starting apps. Went back to stock and it works.

I had the same issue after updating the SuperSU binary following the flash of the latest nightly. Here is what I did to get CM13 back:
Flashed 20o kdz via LGUP - http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Booted Stock Rom - Set Developer options on and enable OEM unlocking and USB debugging
Added TWRP - http://forum.xda-developers.com/tmo...ck-guide-h811-20-o-bootloader-unlock-t3421589
Booted Stock Rom
Reboot to Recovery
Flashed CM13 via TWRP
Booted CM13
Enabled Developer options ensured OEM unlock and Usb debugging were enabled (Debugging was for Titanium Backup). Also, extended boot menu (for ease)
Reboot to Recovery flash additional items (SuperSU, Gapps, Xposed) Note: I flashed each one individually and booted (wanted to check each for functionality after this mess)
Let me know if you have questions, I'll be happy to try and help.
Cheers!

My phone is functional again, I didn't notice originally but even with the stock flash I had no sound, sensors or camera. I ended up flashing the KDZ and reinstall RR and everything is normal again. Follow the step Surly33 posted and you should be fine.

Thanks a TON surly33 and Pantslessape !!!!
Struggled all day yesterday and half of today, trying to get it working again...
Wonder what was the problem?

I wonder if something changed in SuperSU 2.78 and we should stick with 2.76.
Thanks Surly33, I will try it and see how it goes.

I flashed CM and GApps, and all seems to be working. Gonna try it with just the stock su for now. Thanks

Worked like a charm
Surly33 said:
I had the same issue after updating the SuperSU binary following the flash of the latest nightly. Here is what I did to get CM13 back:
Flashed 20o kdz via LGUP - http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Booted Stock Rom - Set Developer options on and enable OEM unlocking and USB debugging
Added TWRP - http://forum.xda-developers.com/tmo...ck-guide-h811-20-o-bootloader-unlock-t3421589
Booted Stock Rom
Reboot to Recovery
Flashed CM13 via TWRP
Booted CM13
Enabled Developer options ensured OEM unlock and Usb debugging were enabled (Debugging was for Titanium Backup). Also, extended boot menu (for ease)
Reboot to Recovery flash additional items (SuperSU, Gapps, Xposed) Note: I flashed each one individually and booted (wanted to check each for functionality after this mess)
Let me know if you have questions, I'll be happy to try and help.
Cheers!
Click to expand...
Click to collapse

So happy that Xda developed me into someone who could help others! Cheers family!

Mogster2K said:
I flashed CM and GApps, and all seems to be working. Gonna try it with just the stock su for now. Thanks
Click to expand...
Click to collapse
Also, on SuperSU 2.78 with no issues

Surly33 said:
Also, on SuperSU 2.78 with no issues
Click to expand...
Click to collapse
i wonder what went wrong

Mogster2K said:
This just started a couple days ago. I rebooted the phone after SuperSU updated its binary, and the phone would not boot past the "starting apps" screen. I've tried everything I can think of - disabling systemless root and Xposed, upgrading CM 13, downgrading it, wiping everything and doing a fresh install, restoring stock 20i with TWRP and reinstalling CM... nothing works. It either hangs on the boot animation or the "starting apps" screen. I finally managed to get stock 20o loaded with the KDZ method and everything seems to work, but I would really like to have CM back. Can anyone help?
Click to expand...
Click to collapse
So I had this same problem happen to me. I happened to have a complete TWRP backup including all partitions from right after I unlocked the SIM and bootloader. I wiped everything including the SD Card then restored the backup and it's still having issues.
After restoring the backup I was able to get the SlimROM to boot but during the setup the phone locks up. I will try reinstalling Cyanogenmod to see if I encounter the same problem with that, but it doesn't seem like SuperSU 2.78 is the common denominator because I was running that version since it's release and only started having problems yesterday.

Meh Same here
Was running the nightly from 160920, had downloaded but not installed latest nightly 160930, before I had a chance to install it, phone locked up. Figured ok, maybe something I flashed? ( although last thing I flashed and or changed was on the 21st) so reflashed my previous backup of CM13 with just Cm13 installed, no extras or additions, and phone locked up again.
Stuck at the Starting apps screen.
Recharging my battery now and gonna reflash stock which Suuuuuuuuuuxxxxxxxxxxxxx :crying:
Meh dbl meh.
Anybody figure it out yet?

shadow813 said:
Was running the nightly from 160920, had downloaded but not installed latest nightly 160930, before I had a chance to install it, phone locked up. Figured ok, maybe something I flashed? ( although last thing I flashed and or changed was on the 21st) so reflashed my previous backup of CM13 with just Cm13 installed, no extras or additions, and phone locked up again.
Stuck at the Starting apps screen.
Recharging my battery now and gonna reflash stock which Suuuuuuuuuuxxxxxxxxxxxxx :crying:
Meh dbl meh.
Anybody figure it out yet?
Click to expand...
Click to collapse
This happened to me when I flashed the CM 20160929 nightly on top of the 20160928 nightly. I was encrypted and I had been running SuperSU 2.78 since it released. Updating my phone to the 20o base fixed the problem and I took the opportunity to switch to the SlimROM6 port since CM decided they don't really want to get around to release a stable build of CM13 so that bug reports can be submitted. At least now I can toggle data on and off in the quicksettings pulldown. The downside is I have to re-setup all my accounts and stuff but on the upside I had been meaning to do this anyway as I encrypted and TWRP still can't decrypt properly (amongst other time zone bugs) to run backups and such.

I was on Stock 20i before I initially installed CM 13. Maybe something changed in CM 13 so that it won't boot unless Stock 20o gets installed. I know there's more to it than just the boot and system images that custom ROMs use. (I count 57 separate partitions and I have no idea what most of them do.) The Stock 20o KDZ seems to contain 27 of them.

I was on Stock 20i before I initially installed CM 13. Maybe something changed in CM 13 so that it won't boot unless Stock 20o gets installed. I know there's more to it than just the boot and system images that custom ROMs use. (I count 57 separate partitions and I have no idea what most of them do.) The Stock 20o KDZ seems to contain 27 of them.
Click to expand...
Click to collapse
I think there was a boot loader compatibly issue with SuperSU and 20i. But, that is just a guess.

Surly33 said:
I had the same issue after updating the SuperSU binary following the flash of the latest nightly. Here is what I did to get CM13 back:
Flashed 20o kdz via LGUP - http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Booted Stock Rom - Set Developer options on and enable OEM unlocking and USB debugging
Added TWRP - http://forum.xda-developers.com/tmo...ck-guide-h811-20-o-bootloader-unlock-t3421589
Booted Stock Rom
Reboot to Recovery
Flashed CM13 via TWRP
Booted CM13
Enabled Developer options ensured OEM unlock and Usb debugging were enabled (Debugging was for Titanium Backup). Also, extended boot menu (for ease)
Reboot to Recovery flash additional items (SuperSU, Gapps, Xposed) Note: I flashed each one individually and booted (wanted to check each for functionality after this mess)
Let me know if you have questions, I'll be happy to try and help.
Cheers!
Click to expand...
Click to collapse
Haha, this happened to me like 3 weeks ago too. I ended up doing this after like 3 hours of messing around with the phone. I wish i would have just saw this instead of figuring it out on my own haha

Can't install TWRP after updating to Nougat

I recently updated my EVA-L09 to Android 7.0. Before that, I was rooted and I had TWRP. After I updated, I obviously would need to install TWRP and root again, but when I install it with SRK Tool or even with fastboot, it always goes back to stock recovery. I already tried to flash it by "recovery.img" as well.

Gutito said:
I recently updated my EVA-L09 to Android 7.0. Before that, I was rooted and I had TWRP. After I updated, I obviously would need to install TWRP and root again, but when I install it with SRK Tool or even with fastboot, it always goes back to stock recovery. I already tried to flash it by "recovery.img" as well.
Click to expand...
Click to collapse
that would be because the TWRP in SRK Tools is only for android 6 (EMUI 4.1 - 4.1.1) and not for android 7 (EMUI 5 - 5.1)
the recovery that you need to use in order for twrp to be installed is this one https://github.com/OpenKirin/android_device_huawei_eva/releases/download/3.1.0/twrp-3.1.0-0-eva.img
then once its installed boot up your phone and then type in "adb reboot recovery" and that will then boot your device into TWRP 3.1.0.0

Thank you, it worked!
Another question, but now related to SuperSU.
I am with the 2.79 version of SuperSU and I downloaded the binary .zip of this version and flashed it by twrp. The problem is that it keeps saying ""There is no SU binary installed and SuperSU cannot install it. This is a problem!".

I already got it to work. Thanks btw

Gutito said:
I already got it to work. Thanks btw
Click to expand...
Click to collapse
Could you post how perhaps? I had the same problem as you - the TWRP posted about fixed my first problem but now I can't get SuperSU to install either. Would be interested to know how you fixed it!

kzip said:
Could you post how perhaps? I had the same problem as you - the TWRP posted about fixed my first problem but now I can't get SuperSU to install either. Would be interested to know how you fixed it!
Click to expand...
Click to collapse
I solved it by this post https://forum.xda-developers.com/showpost.php?p=70927601&postcount=456
I ended up not using super su but If you want you can use it instead of the one suggested there
By flashing the file provided in the post, I managed to automatically get access to super user (root)

Boot failure when installing ElementalX 4.20 with latest Pure Nexus and Magisk

Not sure what I'm doing wrong. I clean install Purenexus 7.1.2 (latest) with the recommended gapps, let it boot and get setup. Then I install Magisk and let it fully reboot. Then I try installing the ElementalX 4.20 kernal and it won't finish booting after that. Help! I did it twice now and got the same result.

Jwikoff99 said:
Not sure what I'm doing wrong. I clean install Purenexus 7.1.2 (latest) with the recommended gapps, let it boot and get setup. Then I install Magisk and let it fully reboot. Then I try installing the ElementalX 4.20 kernal and it won't finish booting after that. Help! I did it twice now and got the same result.
Click to expand...
Click to collapse
Hello,
Maybe try this way:
Install ROM and reboot to system
Reboot twrp, Install kernel first and magisk.
Reboot.
Good luck...

That seems to be working. Thanks!

Jwikoff99 said:
That seems to be working. Thanks!
Click to expand...
Click to collapse
Hey,
You're welcome.
As both Magisk and EXKernel alter boot.img, I guess EX needs to be installed first. If you install after Magisk, it brakes a part of Magisk modifications. Hence the bootloop. But it's just an assumption.
Cheers...

Mmmh,
I did a clean flash with ROM (purenexus_shamu-7.1.2-20170423-OFFICIAL), GApps (BeansGapps-Mini-7.1.x-20170415) - reboot and start new system.
Than I fashed Magisk-v12.0 for root and installed Magisk-Manager.
After that I flashed ElementalX-N6-4.20 (and today ElementalX-N6-4.21).
Everything runs without any issue!

Yeah I was kinda wondering what happens when I try to install a kernel update since that would be like what I was doing before.

Startup Hang after Installing Magisk v18.0

Hey, all!
Had a notification this morning for the new Magisk Manager (6.1) and Magisk (18.0) release. I downloaded both and rebooted the phone (OnePlus 2), updating from 17.3 to 18.0 directly, which had no errors during the install. Now upon startup it hangs on the splash screen. I can get into recovery (TWRP) and I have tried to flash the latest Magisk Uninstaller but I'm greeted with an ERROR 1: Error Installing zip file '/sdcard/...' - Unable to unpack boot.img
Any help here? Thanks in advance!

SpikyAndroid3 said:
Hey, all!
Had a notification this morning for the new Magisk Manager (6.1) and Magisk (18.0) release. I downloaded both and rebooted the phone (OnePlus 2), updating from 17.3 to 18.0 directly, which had no errors during the install. Now upon startup it hangs on the splash screen. I can get into recovery (TWRP) and I have tried to flash the latest Magisk Uninstaller but I'm greeted with an ERROR 1: Error Installing zip file '/sdcard/...' - Unable to unpack boot.img
Any help here? Thanks in advance!
Click to expand...
Click to collapse
You can do dirty flash of your current ROM. That would simply replace the boot.img back to normal and then you can try flashing Magisk v18.0 again (if you want to)
Sent from my #FlagshipKiller3T using Tapatalk

DarkSJ1998 said:
You can do dirty flash of your current ROM. That would simply replace the boot.img back to normal and then you can try flashing Magisk v18.0 again (if you want to)
Sent from my #FlagshipKiller3T using Tapatalk
Click to expand...
Click to collapse
Thanks for the response, just about to do a dirty flash of the stock ROM. My memory doesn't serve me well, is it best to wipe Cache as well as Dalvik Cache, or just Dalvik Cache?
The recovery also stays as is, right?

Hello,
The same for me from 17.3 to 18.
I'm on Nexus 6 with stock ROM.

SpikyAndroid3 said:
Thanks for the response, just about to do a dirty flash of the stock ROM. My memory doesn't serve me well, is it best to wipe Cache as well as Dalvik Cache, or just Dalvik Cache?
The recovery also stays as is, right?
Click to expand...
Click to collapse
Yep the recovery should stay as it is. I would recommend wiping both Dalvik Cache & Cache. Also, do keep fastboot handy. TWRP survival really depends on the device. For my device (OnePlus 3T), the OOS overrides TWRP if no root solution is used or patched boot.img isn't used.
Sent from my #FlagshipKiller3T using Tapatalk
---------- Post added at 01:08 AM ---------- Previous post was at 12:55 AM ----------
StreamingMT said:
Hello,
The same for me from 17.3 to 18.
I'm on Nexus 6 with stock ROM.
Click to expand...
Click to collapse
Weird :/
Did you check the Magisk release thread for people facing similar issues? I'm still on v17.3.
I'm really reluctant to move to v18.0 after reading such things... Moreover, I always wait for feedbacks before trying out things that play with the boot.img's & stuff, because I already got /data partition of my last device corrupted [emoji52]
Sent from my #FlagshipKiller3T using Tapatalk

DarkSJ1998 said:
Yep the recovery should stay as it is. I would recommend wiping both Dalvik Cache & Cache. Also, do keep fastboot handy. TWRP survival really depends on the device. For my device (OnePlus 3T), the OOS overrides TWRP if no root solution is used or patched boot.img isn't used.
Click to expand...
Click to collapse
Alrighty! Just went ahead and did the flash and it successfully reboots! Tried to reboot into recovery to flash Magisk 17.3 and lo and behold TWRP is still there
Guess I'll wait until there has been an update or patch of some sorts if @StreamingMT is also getting this issue, maybe there are others too. Thanks for the help @DarkSJ1998

I will try to remember that @DarkSJ1998.
I was excited to have a new update, just got reckless...
Anyways, I replied to the official thread about the details, just search through it. I just restored my phone to the way it used to...
All my saves... Gone to trash.

SpikyAndroid3 said:
Hey, all!
Had a notification this morning for the new Magisk Manager (6.1) and Magisk (18.0) release. I downloaded both and rebooted the phone (OnePlus 2), updating from 17.3 to 18.0 directly, which had no errors during the install. Now upon startup it hangs on the splash screen. I can get into recovery (TWRP) and I have tried to flash the latest Magisk Uninstaller but I'm greeted with an ERROR 1: Error Installing zip file '/sdcard/...' - Unable to unpack boot.img
Any help here? Thanks in advance!
Click to expand...
Click to collapse
I had the same bootloop issue when I was reinstalling H2OS beta 21 in my OnePlus 5 today. I got it to boot again with Magisk 18.0 after:
1. Dirty flashing ROM. Now this is important Did not flash Magisk (yet).
2. Rebooting to Bootloader (fastboot) in TWRP (since no root, now stock recovery will reinstall).
3. Fastboot flashed TWRP. Booted to Recovery mode from Fastboot menu.
4. Flashed Magisk 18.0 in TWRP. Now this is important Only flashed Magisk, nothing else.
5. Rebooted to Recovery again instead of System to flash other stuff.
6. Rebooted system.
If course YMMV. The important thing was to not try to flash Magisk while flashing ROM.

Same here on a mi max 2, updated manager and magisk directly from app, now stuck in bootloop. im downloading my rom as im typing to restore stock boot image. will flash v17.1 instead.

I have 1 plus 5 with official H2OS and Magisk 17.1.
Today when after installed Magick 18 and reboot, it stuck at startup.
I try to flash TWRP using adb, but it give me error:
E:\Program Files\Android\platform-tools>adb reboot bootloader
* daemon not running; starting now at tcp:5037
* daemon started successfully
error: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
E:\Program Files\Android\platform-tools>adb kill-server
E:\Program Files\Android\platform-tools>
Click to expand...
Click to collapse

I too am having with latest magisk 18.0 my device is redimi 4x, on trying to update via magisk manager crashes with an error report, installed update using twrp now i get a error popup at start and magisk manger still shows am on 17.1 and tells to update, which crashes the app on trying

tmicrd68 said:
I had the same bootloop issue when I was reinstalling H2OS beta 21 in my OnePlus 5 today. I got it to boot again with Magisk 18.0 after:
1. Dirty flashing ROM. Now this is important Did not flash Magisk (yet).
2. Rebooting to Bootloader (fastboot) in TWRP (since no root, now stock recovery will reinstall).
3. Fastboot flashed TWRP. Booted to Recovery mode from Fastboot menu.
4. Flashed Magisk 18.0 in TWRP. Now this is important Only flashed Magisk, nothing else.
5. Rebooted to Recovery again instead of System to flash other stuff.
6. Rebooted system.
If course YMMV. The important thing was to not try to flash Magisk while flashing ROM.
Click to expand...
Click to collapse
Using Xiaomi Mi Max
Using your method and it work just took afew for it to boot back up :good:

netsonic said:
I have 1 plus 5 with official H2OS and Magisk 17.1.
Today when after installed Magick 18 and reboot, it stuck at startup.
I try to flash TWRP using adb, but it give me error:
Code:
E:\Program Files\Android\platform-tools>adb reboot bootloader
* daemon not running; starting now at tcp:5037
* daemon started successfully
error: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
E:\Program Files\Android\platform-tools>adb kill-server
Click to expand...
Click to collapse
Try 'Revoking USB Debugging' and restart the adb server. Then reinstate its authorization by plugging it back in with USB Debugging enabled. And just to check, make sure you run cmd as administrator, and ensure MTP is on.
huzeifa88 said:
I too am having with latest magisk 18.0 my device is redimi 4x, on trying to update via magisk manager crashes with an error report, installed update using twrp now i get a error popup at start and magisk manger still shows am on 17.1 and tells to update, which crashes the app on trying
Click to expand...
Click to collapse
Try flashing the uninstaller which you can get here. Then reinstall/reflash Magisk with a previous version that worked for you.

DarkSJ1998 said:
You can do dirty flash of your current ROM. That would simply replace the boot.img back to normal and then you can try flashing Magisk v18.0 again (if you want to)
Sent from my #FlagshipKiller3T using Tapatalk
Click to expand...
Click to collapse
It's possible only flash the stock boot.img (extracted from fastboot stock rom) with the TWRP?

otraver said:
It's possible only flash the stock boot.img (extracted from fastboot stock rom) with the TWRP?
Click to expand...
Click to collapse
I guess it's possible, but I'm not sure about that.... You can backup/restore boot.img from TWRP but I don't know if you can do this also... Do check it on the Internet.
Sent from my #FlagshipKiller3T using Tapatalk

DarkSJ1998 said:
You can do dirty flash of your current ROM. That would simply replace the boot.img back to normal and then you can try flashing Magisk v18.0 again (if you want to)
Sent from my #FlagshipKiller3T using Tapatalk
Click to expand...
Click to collapse
DarkSJ1998 said:
I guess it's possible, but I'm not sure about that.... You can backup/restore boot.img from TWRP but I don't know if you can do this also... Do check it on the Internet.
Sent from my #FlagshipKiller3T using Tapatalk
Click to expand...
Click to collapse
Don't work.
The cellular boot but stops in the Miui Screen with the unlocked symbol
I tried a dirty install of the rom but don't work
I need to install a clean global stock rom to boot correctly.

otraver said:
It's possible only flash the stock boot.img (extracted from fastboot stock rom) with the TWRP?
Click to expand...
Click to collapse
Actually, Magisk does a backup of stock boot.img before patching it, which lies stored in /data as ".img.gz.zip". Haven't looked for how to restore it yet; however, assuming it's a flashable zip, it can be restored via TWRP. Should check Magisk release OP to be sure...
Sent from my Moto Z2 Play using XDA Labs

The Analog Kid said:
Actually, Magisk does a backup of stock boot.img before patching it, which lies stored in /data as ".img.gz.zip". Haven't looked for how to restore it yet; however, assuming it's a flashable zip, it can be restored via TWRP. Should check Magisk release OP to be sure...
Sent from my Moto Z2 Play using XDA Labs
Click to expand...
Click to collapse
Doesn't look like a flashable zip too me. It stores a *.img file in it, which I think is flashable as an image from TWRP. But, I'm not 100% sure about it.
Great discovery though dude there
Sent from my #FlagshipKiller3T using Tapatalk

otraver said:
It's possible only flash the stock boot.img (extracted from fastboot stock rom) with the TWRP?
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Hello, I do this with my Nexus 6, it's OK. Flash again Magisk (v17 not 18 for me) and all is OK for me.

Boot loop for me too after upgrading from v17 to v18 . I'm on Nexus 6. Any official information about this bug?
Fixed by installing TWRP then restored backup through TWRP and selected only boot image. I guess TWRP or me saved backup at some point, don't remember exactly. Will have to use v17 for now.