Database Develop

Guide to install Android 8.1 or 9 custom ROM?

The question speaks for itself,I cannot find really any accurate ways to get started because I once tried to install Oreo beta (before official was out) and flashed a Oreo recovery onto Nougat and bricked my phone,and the only way was to use DC Phoenix so for now I have kept my phone on EMUI 8 stock.
So if anyone can tell me the steps to install let's say an Android 8.1 Treble ROM or Android 9 when it gets good as a daily driver,I know that you need to do the following things:
-unlock the bootloader
-install a recovery
-flash a ROM through fastboot or through recovery and after that flash Gapps and a modded version of Magisk
That is pretty self explanatory,but I have seen like that you cannot use TWRP since there is a problem when wiping data and that you need to have Huawei stock recovery and some important things to consider since I see it is pretty easy to brick these phones if you don't follow instructions but since there isn't really clear instructions to do some of these things,I am asking here if anyone can explain to me.
And yes,I do have my bootloader unlock code since as I stated,I tried to do this before.

dinoderda said:
The question speaks for itself,I cannot find really any accurate ways to get started because I once tried to install Oreo beta (before official was out) and flashed a Oreo recovery onto Nougat and bricked my phone,and the only way was to use DC Phoenix so for now I have kept my phone on EMUI 8 stock.
So if anyone can tell me the steps to install let's say an Android 8.1 Treble ROM or Android 9 when it gets good as a daily driver,I know that you need to do the following things:
-unlock the bootloader
-install a recovery
-flash a ROM through fastboot or through recovery and after that flash Gapps and a modded version of Magisk
That is pretty self explanatory,but I have seen like that you cannot use TWRP since there is a problem when wiping data and that you need to have Huawei stock recovery and some important things to consider since I see it is pretty easy to brick these phones if you don't follow instructions but since there isn't really clear instructions to do some of these things,I am asking here if anyone can explain to me.
And yes,I do have my bootloader unlock code since as I stated,I tried to do this before.
Click to expand...
Click to collapse
Here is how to do it:
Download the gsi
Open fastboot mode
Flash stock recovery
Boot to recovery and wipe data
Flash The new rom in fastboot
Flash TWRP also
Boot to twrp and flash gapps/magisk etc
Reboot to system

MrViking said:
Here is how to do it:
Download the gsi
Open fastboot mode
Flash stock recovery
Boot to recovery and wipe data
Flash The new rom in fastboot
Flash TWRP also
Boot to twrp and flash gapps/magisk etc
Reboot to system
Click to expand...
Click to collapse
What is gsi?

JoanSB1 said:
What is gsi?
Click to expand...
Click to collapse
Generic System Image.

MrViking said:
Here is how to do it:
Download the gsi
Open fastboot mode
Flash stock recovery
Boot to recovery and wipe data
Flash The new rom in fastboot
Flash TWRP also
Boot to twrp and flash gapps/magisk etc
Reboot to system
Click to expand...
Click to collapse
And if I have downloaded a zipped ROM instead of an GSI,I do the same steps but in TWRP I flash the ROM with the Gapps and Magisk,right?
Also,can I use NoCheckRecovery for Oreo when I need to wipe data instead of stock recovery since I think it would come in handy if I would need to re-flash something through that without Huawei checks and it seems to be easier to find?
And I flash the recoveries to recovery_ramdisk,just to be sure,I know some things did change with Oreo so I am asking?

dinoderda said:
And if I have downloaded a zipped ROM instead of an GSI,I do the same steps but in TWRP I flash the ROM with the Gapps and Magisk,right?
Also,can I use NoCheckRecovery for Oreo when I need to wipe data instead of stock recovery since I think it would come in handy if I would need to re-flash something through that without Huawei checks and it seems to be easier to find?
And I flash the recoveries to recovery_ramdisk,just to be sure,I know some things did change with Oreo so I am asking?
Click to expand...
Click to collapse
what rom are you trying to install?
All treble roms come in a .img file not a .zip.

MrViking said:
what rom are you trying to install?
All treble roms come in a .img file not a .zip.
Click to expand...
Click to collapse
Oh,I thought Pixel Experience ROM was meant to be installed through recovery,bloody hell pardon me.
Never mind then.
I am gonna wait for Android 9 to get a bit more stable and that official OpenGapps gets released and then I am going to install it.
Thank you very much for helping me!

dinoderda said:
Oh,I thought Pixel Experience ROM was meant to be installed through recovery,bloody hell pardon me.
Never mind then.
I am gonna wait for Android 9 to get a bit more stable and that official OpenGapps gets released and then I am going to install it.
Thank you very much for helping me!
Click to expand...
Click to collapse
Thats ok, we all make mistakes lol.
Yeah, a pixel experience 9.0 gsi is coming soon, and these GSI's are pretty stable. If you need any more help you can ask me:good:

MrViking said:
Here is how to do it:
Download the gsi
Open fastboot mode
Flash stock recovery
Boot to recovery and wipe data
Flash The new rom in fastboot
Flash TWRP also
Boot to twrp and flash gapps/magisk etc
Reboot to system
Click to expand...
Click to collapse
I did those steps trying to flash RROS6 build BENVENUTI (https://forum.xda-developers.com/p8lite/p8-lite-2017-development/rom-rros-pra-t3774444) and I failed. I don't know what I'm doing wrong. Please help me to install Resurrection Remix! :crying:

JoanSB1 said:
I did those steps trying to flash RROS6 build BENVENUTI (https://forum.xda-developers.com/p8lite/p8-lite-2017-development/rom-rros-pra-t3774444) and I failed. I don't know what I'm doing wrong. Please help me to install Resurrection Remix! :crying:
Click to expand...
Click to collapse
What is the exact problem you aee having? Bootloop? Error when trying to flash?

dinoderda said:
What is the exact problem you aee having? Bootloop? Error when trying to flash?
Click to expand...
Click to collapse
Error when trying to flash

JoanSB1 said:
Error when trying to flash
Click to expand...
Click to collapse
Tell me the steps in order which you did when you were trying to flash the ROM.

dinoderda said:
Tell me the steps in order which you did when you were trying to flash the ROM.
Click to expand...
Click to collapse
Ok, it clearly says that that Rom is discontinued, read the last post.
Use a gsi from the treble enabled device development forum and flash it with fastboot (yesyou can use android pie 9.0 gsi's as well as long as they don't say sGSI on it.

MrViking said:
Ok, it clearly says that that Rom is discontinued, read the last post.
Use a gsi from the treble enabled device development forum and flash it with fastboot (yesyou can use android pie 9.0 gsi's as well as long as they don't say sGSI on it.
Click to expand...
Click to collapse
Wow, if that ROM is discontinued I'll desist to install it then. So I'll try to install Lineage OS 15.1. You recommend it ? This is the post that I'm seeing https://forum.xda-developers.com/p8...nt/rom-lineageos-15-1-hi6250-devices-t3811583

JoanSB1 said:
Wow, if that ROM is discontinued I'll desist to install it then. So I'll try to install Lineage OS 15.1. You recommend it ? This is the post that I'm seeing https://forum.xda-developers.com/p8...nt/rom-lineageos-15-1-hi6250-devices-t3811583
Click to expand...
Click to collapse
Use ones from the treble enabled device forum. You can even use pie, so why not?
---------- Post added at 03:30 PM ---------- Previous post was at 03:28 PM ----------
JoanSB1 said:
Wow, if that ROM is discontinued I'll desist to install it then. So I'll try to install Lineage OS 15.1. You recommend it ? This is the post that I'm seeing https://forum.xda-developers.com/p8...nt/rom-lineageos-15-1-hi6250-devices-t3811583
Click to expand...
Click to collapse
Here is an android P gsi for this device. It works very well:
https://forum.xda-developers.com/pr...ce-development/9-0-pixelexperience-p-t3833294

Can I install anything with lock bootloader?

box710 said:
Can I install anything with lock bootloader?
Click to expand...
Click to collapse
no

MrViking said:
Use ones from the treble enabled device forum. You can even use pie, so why not?
---------- Post added at 03:30 PM ---------- Previous post was at 03:28 PM ----------
Here is an android P gsi for this device. It works very well:
https://forum.xda-developers.com/pr...ce-development/9-0-pixelexperience-p-t3833294
Click to expand...
Click to collapse
Does the USSD code work? is that it is important to me and I do not know a ROM that works

dinoderda said:
Generic System Image.
Click to expand...
Click to collapse
Is there a guide to install this I paid DC unlock to get bootloader unlocked but on noughat and cannot find a twrp for noughat:good:

Pie gsi
Hi all,
I have installed Pixel Experience (Oreo) gsi ROM no problem. But if I try to flash any Pie gsi ROM it just goes into a boot loop. I flash system via fastboot and seems OK. Reboot and it just boot loops a few times and goes to the recovery screen that prompts to download and install the standard system.
Has anybody come across this or have any suggestions. I have tried a few different Pie gsi ROMs and same thing happens.
Thanks
Mick

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?
Click to expand...
Click to collapse
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.

[James] Moto E5 Play won't boot into Custom ROM(s)

Device variant: XT19121-2 James
Chipset: MSM8920
After repeated failed flashes I am on stock firmware using this guide. Phone boots and works normally right now, but I can't seem to flash any Custom ROMs on to my phone. I was using this post to flash Lineage OS 15.1, which worked successfully at first, but the WiFi wasn't working so I reflashed it. It still didn't work so I did it again, wiping Dalvik/Cache too. After the second flash attempt, my phone began to only flicker on and off. I made sure to always clean flash, factory resetting, wiping Cache and Dalvik, even formatting data, but no matter what I do it doesn't work. Also attempted other GSI images (arm, A-only) like AOSP, ResurrectionRemix and phhusson's Lineage OS 15.1 But they all failed too. I am using TWRP for James v 3.3.1 although I did also try other TWRP images like v 3.2.1 . But it makes no difference. Also used Magisk v19 like some guides suggested but whether I have Magisk or not, it doesn't work. Even made sure to push the fstab.qcom file to /vendor. Anytime a Custom ROM is flashed whether zip or GSI img it goes past the initial "bad key" or "N/A" screen and starts flickering on and off. Bootloader and TWRP works fine, but that's about it. Everytime a flash fails I go back to stock firmware (which always works) and try another ROM. I wonder why the first attempt worked but doesn't anymore even if I mirror the exact steps I took from stock. If anyone has any solutions I would be really grateful. Let me know if you need any more information.

have you taken any recent OTA updates?

mikeshutte said:
have you taken any recent OTA updates?
Click to expand...
Click to collapse
Nope. Still on the 8.0.0 version the stock firmware comes in.

tkhan7916 said:
Nope. Still on the 8.0.0 version the stock firmware comes in.
Click to expand...
Click to collapse
Okay give this a try, I'm assuming you have old root access and TWRP installed.
Download any Android 9 GSI of your liking, boot to TWRP.
Do a complete nandroid backup of the stock firmware.
Do a factory reset then wipe system partition.
Next flash your GSI that you downloaded to your system partition.
After flashing is complete of the GSI reboot to recovery.
After reboot completed flash your open Gapps zip. Then reflash Magisk.
if you get a error message when flashing g apps then you will need to use magic g apps with magisk as it will install them systemless. I have to do this on my device because the partition doesn't have enough space.
Give that a try and let me know how it goes if you have any questions feel free to ask.
---------- Post added at 10:09 PM ---------- Previous post was at 09:59 PM ----------
tkhan7916 said:
Nope. Still on the 8.0.0 version the stock firmware comes in.
Click to expand...
Click to collapse
mikeshutte said:
Okay give this a try, I'm assuming you have old root access and TWRP installed.
Download any Android 9 GSI of your liking, boot to TWRP.
Do a complete nandroid backup of the stock firmware.
Do a factory reset then wipe system partition.
Next flash your GSI that you downloaded to your system partition.
After flashing is complete of the GSI reboot to recovery.
After reboot completed flash your open Gapps zip. Then reflash Magisk.
if you get a error message when flashing g apps then you will need to use magic g apps with magisk as it will install them systemless. I have to do this on my device because the partition doesn't have enough space.
Give that a try and let me know how it goes if you have any questions feel free to ask.
Click to expand...
Click to collapse
I also just noticed you are using the latest version of TWRP 3.3.1. I'm not sure if you originally rooted and installed TWRP with the original patched version by Cody or not, but if so make sure with the new version that you format your data partition to f2fs. As this will ensure correct mounting of the data partition.

mikeshutte said:
Okay give this a try, I'm assuming you have old root access and TWRP installed.
Download any Android 9 GSI of your liking, boot to TWRP.
Do a complete nandroid backup of the stock firmware.
Do a factory reset then wipe system partition.
Next flash your GSI that you downloaded to your system partition.
After flashing is complete of the GSI reboot to recovery.
After reboot completed flash your open Gapps zip. Then reflash Magisk.
if you get a error message when flashing g apps then you will need to use magic g apps with magisk as it will install them systemless. I have to do this on my device because the partition doesn't have enough space.
Give that a try and let me know how it goes if you have any questions feel free to ask.
Click to expand...
Click to collapse
Followed these steps exactly, including formatting the data partition to f2fs, and the same problem still persists. Screen just keeps turning on and off in a loop without booting into the ROM. I downloaded the Lineage OS 16.0 GSI A-only Arm version for reference.

I am having the same issue
Using XT1921-1
Latest TWRP
Have tried LOS 15, LOS 16, AOSP 8.1, AOSP 9.0
Have tried flashing in fastboot and TWRP
Have tried every combo of wipe/factory reset/format data and magisk flash possible
have tried stock recovery, have tried no verity, have tried stock boot.img
nothing works. only able to produce powered on (black and blank) screen that turns on and off for a minute before returning to bootloader
PLEASE HELP
think i might need a 8.0 GSI but cant find one anywhere

I eventually got RR to boot on the james xt-1921-3 I installed XT1921-3_JAMES_T_MPCS_8.0.0_OCPS27.91-150-5-1-3_cid21 as a base, then used boot and vendor partitions from JAMES_T_OCP27.91-51-4_cid21_subsidy-TMO_RSU_regulatory-DEFAULT_CFC and it finally worked.

tkhan7916 said:
Followed these steps exactly, including formatting the data partition to f2fs, and the same problem still persists. Screen just keeps turning on and off in a loop without booting into the ROM. I downloaded the Lineage OS 16.0 GSI A-only Arm version for reference.
Click to expand...
Click to collapse
Message me, I'll host a TWRP backup for the XT-1921-3 that boots RR 6.1

Download the file from this post https://forum.xda-developers.com/android/software/universal-dm-verity-forceencrypt-t3817389 , then using fastboot, flash the vendor and boot img
fastboot flash vendor vendor.img
fastboot flash boot boot.img
then boot into recovery and flash the file from that post to disable dm-verity and force encrytion, after that flash magisk, then reboot to bootloader, at command prompt-
fastboot erase userdata
fastboot erase cache
fastboot reboot
that should get you booted - profit

mrbox23 said:
Message me, I'll host a TWRP backup for the XT-1921-3 that boots RR 6.1
Click to expand...
Click to collapse
Do you still have that back up by any chance and could ypu send it to me?

Error while installing Magisk through Magisk manager

I'm trying to instal Magisk 19.3 through Magisk Manager Version: v7.3.4
and getting this error:
Device platform: arm64-v8a
Coping image to cache
unpacking boot image
!unsupported/unknown image format
!installation failed
Any ideas how to solve it?
I have used Stable Magisk Version: v19.3 (also tried Beta Magisk Version: v19.4)

Maybe something's wrong with the boot image? Try to re-download magisk stable zip and reintall it via TWRP.

@LogicalMaverick, tried to download it again from this thread https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445 but still the same error message
I did try to install in TWRP mode and also from the Magisk Manager and still not working.
When I install in TWRP mode the result is the phone is getting into loop mode and the only way out if it is to uninstall it

try to wipe data after flashing magisk before booting to system

Kzak25 said:
try to wipe data after flashing magisk before booting to system
Click to expand...
Click to collapse
Yeah, for me there are 2 ways:
1. Wipe data after flashing magisk before booting system
2. Complete phone setup first after installing new ROM, and then boot into recovery, then you're good to install magisk

Kzak25 said:
try to wipe data after flashing magisk before booting to system
Click to expand...
Click to collapse
Didn't work. Still getting to the same issue where the phone is stuck in bootloop and the only way out of it is to uninstall Magisk

What phone are you using?

cohenelad said:
Didn't work. Still getting to the same issue where the phone is stuck in bootloop and the only way out of it is to uninstall Magisk
Click to expand...
Click to collapse
are you on stock or custom ROM (if stock what MIUI Ver)

Kzak25 said:
are you on stock or custom ROM (if stock what MIUI Ver)
Click to expand...
Click to collapse
I'm on stock ROM.
Was on MIUI 10.3.2 Now I'm on 10.4.8.
Tried to install Magisk on bot ROM through TWRP and didn't work.
Tried also through Magisk manager and didn't work
When I installed TWRP on my phone it asked if I want to give it permission to modify the system or to leave it read only mode.
I choose read only mode as I thought it will be easier to get OTA updates.
Maybe that's the reason Magisk cannot be installed correctly ?
TIA for your help

cohenelad said:
I'm on stock ROM.
Was on MIUI 10.3.2 Now I'm on 10.4.8.
Tried to install Magisk on bot ROM through TWRP and didn't work.
Tried also through Magisk manager and didn't work
When I installed TWRP on my phone it asked if I want to give it permission to modify the system or to leave it read only mode.
I choose read only mode as I thought it will be easier to get OTA updates.
Maybe that's the reason Magisk cannot be installed correctly ?
TIA for your help
Click to expand...
Click to collapse
Yeah i think you should give TWRP all permission when you boot into it the first time
you can re-flash TWRP and try again

reboots to fastboot
Kzak25 said:
Yeah i think you should give TWRP all permission when you boot into it the first time
you can re-flash TWRP and try again
Click to expand...
Click to collapse
I can flash over twrp. then it says no rom installed so flash over magisk-error unknown image. this is a fresh download tried 3 new downloads same error. use adb sideload to flash rom. successful do the reboot and it reboots to fastboot. what do i do

TWRP gets replaced by stock recovery

So I've used TWRP r16 and it throws an "Image not signed or corrupt" error as suggested by other users I ignored it, but everytime I reboot to system and try to get to recovery "no command" show's up meaning TWRP was replaced by stock recovery all help will be appreciated.
Thanks

Akash731 said:
So I've used TWRP r16 and it throws an "Image not signed or corrupt" error as suggested by other users I ignored it, but everytime I reboot to system and try to get to recovery "no command" show's up meaning TWRP was replaced by stock recovery all help will be appreciated.
Thanks
Click to expand...
Click to collapse
You need to flash Magisk after flashing TWRP
1. Flash Latest TWRP
2. Reboot to TWRP
3. Flash Magisk
If you boot in to system after flashing TWRP, TWRP will be removed

pradeeppk said:
You need to flash Magisk after flashing TWRP
1. Flash Latest TWRP
2. Reboot to TWRP
3. Flash Magisk
If you boot in to system after flashing TWRP, TWRP will be removed
Click to expand...
Click to collapse
Hey thanks that worked.
But everytime I boot to system and boot to twrp the data gets encrypted and I can't access the files do you happen to know any solution for this?

Akash731 said:
Hey thanks that worked.
But everytime I boot to system and boot to twrp the data gets encrypted and I can't access the files do you happen to know any solution for this?
Click to expand...
Click to collapse
If you are on stock Rom, according to my knoweldge it is not possible to remove encryption, if you format your date in twrp for removing encryption then reboot to system you can see that the phone is again encrypted.
But in custom roms this doesnt happen.

pradeeppk said:
You need to flash Magisk after flashing TWRP
1. Flash Latest TWRP
2. Reboot to TWRP
3. Flash Magisk
If you boot in to system after flashing TWRP, TWRP will be removed
Click to expand...
Click to collapse
pradeeppk said:
If you are on stock Rom, according to my knoweldge it is not possible to remove encryption, if you format your date in twrp for removing encryption then reboot to system you can see that the phone is again encrypted.
But in custom roms this doesnt happen.
Click to expand...
Click to collapse
I don't want to try custom rom's as this is my main device guess I'm stuck with the encryption then thanks for your help. :good:
Edit:-
Tried TWRP r20 it decrypts fine thanks

pradeeppk said:
You need to flash Magisk after flashing TWRP
1. Flash Latest TWRP
2. Reboot to TWRP
3. Flash Magisk
If you boot in to system after flashing TWRP, TWRP will be removed
Click to expand...
Click to collapse
You don't have to flash Magisk after flashing TWRP. The two are unrelated.
After flashing TWRP you have to boot into recovery, not system. Once TWRP was started, you can reboot into system. No need for Magisk (unless you want Magisk anyway).

gewe said:
You don't have to flash Magisk after flashing TWRP. The two are unrelated.
After flashing TWRP you have to boot into recovery, not system. Once TWRP was started, you can reboot into system. No need for Magisk (unless you want Magisk anyway).
Click to expand...
Click to collapse
It will not work in stock ROM, if you flash a custom rom there is no need to flash Magisk.
You should flash Magisk or custom kernel after flashing TWRP otherwise it will be erased.
Google about TWRP erasing after reboot you should get too many posts regarding this
This is one of them
https://forum.xda-developers.com/oneplus-3t/help/twrp-deleted-booting-t3769867

pradeeppk said:
It will not work in stock ROM, if you flash a custom rom there is no need to flash Magisk.
You should flash Magisk or custom kernel after flashing TWRP otherwise it will be erased.
Google about TWRP erasing after reboot you should get too many posts regarding this
This is one of them
https://forum.xda-developers.com/oneplus-3t/help/twrp-deleted-booting-t3769867
Click to expand...
Click to collapse
I am using stock ROM, and yes, also Magisk (installed later). IIRC Magisk is not needed for TWRP to work. When I receive the next OTA notification, I will test this.
The thread you are referring to is for a OnePlus 3T. For our device this is the thread: https://forum.xda-developers.com/moto-g5s-plus/development/recovery-twrp-3-1-1-r7-t3694910.
Since there is no official TWRP for the Moto G5S Plus, I took the following text from the TWRP page for the Moto G5S.
Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install.
Click to expand...
Click to collapse
Instead of that you can also use fastboot reboot-bootloader, and then from the bootloader start recovery.

pradeeppk said:
It will not work in stock ROM, if you flash a custom rom there is no need to flash Magisk.
You should flash Magisk or custom kernel after flashing TWRP otherwise it will be erased.
Google about TWRP erasing after reboot you should get too many posts regarding this
This is one of them
https://forum.xda-developers.com/oneplus-3t/help/twrp-deleted-booting-t3769867
Click to expand...
Click to collapse
Two days ago I received a notification for an OTA update, containing the August 2019 security patches.
After going back to stock ROM, installing all the updates up to the latest, I installed TWRP. After booting into recovery, and then into system, and recovery again, TWRP was gone. Strange, I don't remember this happening before. Maybe I always installed Magisk before booting into system.
Bottom line: you were right, I was wrong. Thanks for pointing it out.

gewe said:
Two days ago I received a notification for an OTA update, containing the August 2019 security patches.
After going back to stock ROM, installing all the updates up to the latest, I installed TWRP. After booting into recovery, and then into system, and recovery again, TWRP was gone. Strange, I don't remember this happening before. Maybe I always installed Magisk before booting into system.
Bottom line: you were right, I was wrong. Thanks for pointing it out.
Click to expand...
Click to collapse
As like you said this is the first time in my life i need to flash magisk to stick twrp.
I usualy doesn't use root or custom roms, install twrp, remove unnecessary apps from stock system, replace host files with adaway hosts, replace or edit gps config files. and continue using stock.
This is the main routine from Android 1.5
(Samsung spica (i think it was the first Android phone from Samsung)).
It may be due to security reason stock kernel or system delete twrp.
When installing magisk it patch stock boot image, that may be the reason of twrp remains after flashing magisk.