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What's New(?) procedure to install Custom ROMs coming from OOS 9.0.5?

Hello guys,
I'm having trouble trying to install a Custom ROM (Tresk Mod, but I get it with others too)
So basically some days ago my whole Internal Storage got encrypted so I had to a full wipe.
From there I decided to use Msmtools just in case, so I got back to OOS 5.1.5 from there I updated to OOS 9.0.5 via OTA and unlock the bootloader and install TWRP everything works fine.
But when I tried to install any custom ROM I either cannot boot and just boots to Bootloader (Not even the recovery works) and I get "Failed to load/authenticate boot image: Load Error" which I can fix fastboot flashing all the partitions...
Or I straight get a black screen with the White Notifications LED whenever I try to boot either to system or recovery and from there I can only recover using Msmtools...
So I'm now asking, what are the steps for flashing Custom ROMs now?? Because seems like I'm doing something wrong since I'm ending having a Bricked device...

try to flash rom with bluespark recovery

Nothing changed that I'm aware of, but I found that I'll have the same experience if I try to root before booting the system at least once rootless first. Also, I have issues like that whenever I keep TWRP (even Blu Spark) installed. Now I only use it via sideload every time. I never have issues anymore.

Mdknight said:
Nothing changed that I'm aware of, but I found that I'll have the same experience if I try to root before booting the system at least once rootless first. Also, I have issues like that whenever I keep TWRP (even Blu Spark) installed. Now I only use it via sideload every time. I never have issues anymore.
Click to expand...
Click to collapse
I did the following:
1. Upgraded from 5.1.5 to 9.0.5 (Since I was coming from Msmtools fix)
2. Unlock bootloader
3. Reboot to system and then boot again to bootloader for doing (fastboot boot TWRP.xxx.img)
4. Once in the recovery flash recovery and Magisk (just because) and back to system (where everything was working perfectly)
5. Rebooted to recovery and did the following:
Factory Reset (The one that you slide which should wipe Cache, Dalvik and Data)
Flashed the ROM (HavocOS 2.5) and right after that TWRP
And at this point I tried to reboot back to recovery but black screen and cannot boot to recovery nor system not even via fastboot
Is your order different? Am I missing something?

Asiier said:
I did the following:
1. Upgraded from 5.1.5 to 9.0.5 (Since I was coming from Msmtools fix)
2. Unlock bootloader
3. Reboot to system and then boot again to bootloader for doing (fastboot boot TWRP.xxx.img)
4. Once in the recovery flash recovery and Magisk (just because) and back to system (where everything was working perfectly)
5. Rebooted to recovery and did the following:
Factory Reset (The one that you slide which should wipe Cache, Dalvik and Data)
Flashed the ROM (HavocOS 2.5) and right after that TWRP
And at this point I tried to reboot back to recovery but black screen and cannot boot to recovery nor system not even via fastboot
Is your order different? Am I missing something?
Click to expand...
Click to collapse
You have to install twrp.zip again after havoc, boot Back Into Recovery and then gapps and magisk

Asiier said:
I did the following:
1. Upgraded from 5.1.5 to 9.0.5 (Since I was coming from Msmtools fix)
2. Unlock bootloader
3. Reboot to system and then boot again to bootloader for doing (fastboot boot TWRP.xxx.img)
4. Once in the recovery flash recovery and Magisk (just because) and back to system (where everything was working perfectly)
5. Rebooted to recovery and did the following:
Factory Reset (The one that you slide which should wipe Cache, Dalvik and Data)
Flashed the ROM (HavocOS 2.5) and right after that TWRP
And at this point I tried to reboot back to recovery but black screen and cannot boot to recovery nor system not even via fastboot
Is your order different? Am I missing something?
Click to expand...
Click to collapse
Sconny said:
You have to install twrp.zip again after havoc, boot Back Into Recovery and then gapps and magisk
Click to expand...
Click to collapse
Agreed. Always reboot from recovery to recovery after flashing a new one (TWRP). THEN, go ahead and flash gapps and magisk.

Sconny said:
You have to install twrp.zip again after havoc, boot Back Into Recovery and then gapps and magisk
Click to expand...
Click to collapse
Mdknight said:
Agreed. Always reboot from recovery to recovery after flashing a new one (TWRP). THEN, go ahead and flash gapps and magisk.
Click to expand...
Click to collapse
I finally figured it out
The problem was that as I was updating via OTA OOS 9.0.5 was only installed in one Slot so I need to install it in the other as well.
Did the following process:
1. Boot to Bootloader and do "fastboot boot TWRP.img"
2. From there flash TWRP.zip and Reboot back to it (Recovery)
3. Flash OOS Latest (9.0.5)
4. Flash TWRP
5. Reboot to TWRP
6. Flash OOS Latest (9.0.5)
7. Flash TWRP
8. Reboot to TWRP
9. Wipe data, dalvik cache
10. Flash ROM
11. Flash TWRP
12. Reboot to TWRP
13. Flash gapps + Misc (Magisk, etc)
14. Boot system
Technically just one 1 installation should do as the other slot was already populated but the twice just to be safe.

Lenovo p2 blue led after magisk update

I am creating this post to help p2 community who is stuck on blue led after magisk update on custom rom
I have encountered this issue twice on my phone after a magisk update.
This happens when you patch the update directly from magisk manager.
The first time I was stuck with this issue on custom pie rom, I searched on other threads and got to know that device needs to reset to stock rom by flashing fast boot stock files on download mode, just search it, you will get link with details
However, this was a very complex task , also I lost my data in the process after flashing the data partition. From there , I went on to flash custom rom ,then installed apps , the process took the whole day
The second time when I again stuck with blue led , I was on another pie rom, This time I recovered my device without having to go over flashing all things again.
Please find the detailed step below , as I think it may help someone in such critical issues
1) Go to download mode, flash treble supported twrp for treble supported pie roms, by using command - fastboot flash recovery name.img
2) Temporary boot into same twrp , command is -
fastboot boot name.img
3) Once in twrp, go to reboot, reboot to recovery
4) Once in recovery , copy following files into internal storage - magisk.zip, magiskunistaller.zip, twrprecovery.img ( one used in step 1 ), boot.img ( extract it from existing rom package.zip)
5) Flash magisk uninstaller first
6) Go to install, install image
flash boot.img by selecting boot partition
if it get stuck , again go in twrp using step 3 and try again, it will work
flash twrprecovery.img by selecting recovery partition
7) Flash magisk zip now
8) If all goes well , you phone will boot into existing rom
Please like the post if you had same issue and are able to recover it from mentioned steps

I got into this trouble too, when direct installing magisk from v19.2 to v19.3. The magisk manager shows that it's finished installing v19.3 and reboot. Then the phone shows the white Lenovo screen, then turns dark, and vibrate for a few seconds with blue led lighting up, and finally just freeze. No bootloop, just a dark screen with blue notification led.
What I did was going to twrp (the one recommended in LOS 16.0 thread) by pressing vol up + down + power button until the white Lenovo screen come up, then release. I just reflash my current ROM (RR-P-v7.0.2-20190604-kuntao-Official.zip) using adb sideload. It finished flashing, click reboot, and finally managed to boot into system. No data loss, magisk v19.3 worked, and no magisk uninstaller required.
During the flashing process, I noticed that Magisk v19.3 was being auto flashed, so the magisk manager direct install probably somehow mess up with the boot.img after installing v19.3.

I was not able to go in twrp by any means , so I mentioned steps via download mode
Regarding your way to sideload and dirty flash whole rom , it didnt worked with me previously, so I cannot say about that, it was going back to blue led after reflashing
Regarding magisk installing and removing steps, anyone can ignore this steps and try if it works for them.

Just uninstall the magisk and reinstall it.
I have also faced same error previously and reinstalled magisk and it worked.

Someone please make a video of this and post it here
Rakxx said:
1) Go to download mode, flash treble supported twrp for treble supported pie roms, by using command - fastboot flash recovery name.img
2) Temporary boot into same twrp , command is -
fastboot boot name.img
3) Once in twrp, go to reboot, reboot to recovery
4) Once in recovery , copy following files into internal storage - magisk.zip, magiskunistaller.zip, twrprecovery.img ( one used in step 1 ), boot.img ( extract it from existing rom package.zip)
5) Flash magisk uninstaller first
6) Go to install, install image
flash boot.img by selecting boot partition
if it get stuck , again go in twrp using step 3 and try again, it will work
flash twrprecovery.img by selecting recovery partition
7) Flash magisk zip now
8) If all goes well , you phone will boot into existing rom
I have this issue but I don't know how to do these steps please make a YouTube video and post a link here (I'm new to this)
Click to expand...
Click to collapse

Stuck on bootloop TWRP without decryption, help.

Hey guys, so i had weird problem (status bar not visible after unlocking device) when updating my phone to 9.5.8. so i decided to flash the rom again to see if the issue goes away. I am rooted and unlocked and everything was working fine (apart from the status bar). I tried this method:
1. Downloaded the 9.5.8 update from Oxygen Updater (DONT REBOOT)
2. Went to Settings\System\System Update and click on the wheel on upper right corner.
3. Select Local Upgrade, then install the update (DONT REBOOT)
*DO NOT REBOOT after applying the update.
4. Launch Magisk, and click the first "install"
5. Choose the "Install to inactive slot (OTA)" option
6. Reboot once completed
On step 6 it failed, i rebooted directly into the Oneplus recovery and not TWRP. So i tried fastboot boot twrp.img and flash the installer. After that i rebooted the device and now it goes directly into twrp but without decryption, it wont ask for my PIN and i get the screen "Unmodified System Partition. Keep System Read only? Installing zips or performing adb operations may still modify the system partition." On the bottom i can "swipe to allow modifications", which i swipe to allow but i can't access any files on my phone, and that is my dead end. Help would be much appreciated.
I also tried flashing Magisk and also Magisk Uninstaller (uninmod wasn't found).
Also tried command "twrp decrypt password" in the Terminal and got "Failed to decrypt data"

sapalot said:
Hey guys, so i had weird problem (status bar not visible after unlocking device) when updating my phone to 9.5.8. so i decided to flash the rom again to see if the issue goes away. I am rooted and unlocked and everything was working fine (apart from the status bar). I tried this method:
1. Downloaded the 9.5.8 update from Oxygen Updater (DONT REBOOT)
2. Went to Settings\System\System Update and click on the wheel on upper right corner.
3. Select Local Upgrade, then install the update (DONT REBOOT)
*DO NOT REBOOT after applying the update.
4. Launch Magisk, and click the first "install"
5. Choose the "Install to inactive slot (OTA)" option
6. Reboot once completed
On step 6 it failed, i rebooted directly into the Oneplus recovery and not TWRP. So i tried fastboot boot twrp.img and flash the installer. After that i rebooted the device and now it goes directly into twrp but without decryption, it wont ask for my PIN and i get the screen "Unmodified System Partition. Keep System Read only? Installing zips or performing adb operations may still modify the system partition." On the bottom i can "swipe to allow modifications", which i swipe to allow but i can't access any files on my phone, and that is my dead end. Help would be much appreciated.
I also tried flashing Magisk and also Magisk Uninstaller (uninmod wasn't found).
Also tried command "twrp decrypt password" in the Terminal and got "Failed to decrypt data"
Click to expand...
Click to collapse
So to be clear: right now, you have access to twrp but not the data partition (twrp does not prompt you to decrypt), and when you reboot to system from, you are bounced back to twrp. Right?

reaper000 said:
So to be clear: right now, you have access to twrp but not the data partition (twrp does not prompt you to decrypt), and when you reboot to system from, you are bounced back to twrp. Right?
Click to expand...
Click to collapse
Yes, but i got frustrated and as i had done a Titanium Backup i just wiped everything on stock recovery and flashed the latest rom with twrp. Is there a clear instruction on how to update the rom when rooted? I just don't want it to happen again.

sapalot said:
Yes, but i got frustrated and as i had done a Titanium Backup i just wiped everything on stock recovery and flashed the latest rom with twrp. Is there a clear instruction on how to update the rom when rooted? I just don't want it to happen again.
Click to expand...
Click to collapse
Don't mess with stock recovery if you already have TWRP and Magisk aboard.
Here's how to update to 9.5.9 (or whatever) when it arrives:
- download your 3 zips: the latest full ota ROM, the latest Magisk, and the latest TWRP installer.
- boot to TWRP recovery
flash the ROM and TWRP installer
- reboot to TWRP recovery
flash Magisk
wipe dalvik
- reboot to system
There's a possibility after these steps and you're happily on the ROM, you might find that you're not rooted (it's more likely on a custom ROM than OOS). In which case you just reboot to recovery and flash Magisk, and then reboot to system. Done.
Discussion:
If you want a clean flash, you'd simply do a TWRP factory reset (standard wipe) instead of wiping dalvik.
Consider flashing both slots (A and B) whenever you update OOS, for two reasons. First, you don't have to keep track of which slot has which version of OOS should you flash a custom ROM or kernel with a specific version of OOS required as a base. The second reason is more compelling: the way the data partition changes encryption every update has obviated the reason for A/B slots, in that if newly updated B changes data encryption upon boot and then something happens, you cannot revert to A because A can't read the new data encryption. So the solution is to update both A and B at the same time so both slots use the same encryption and can both access the data partition.
Or like me, run the device decrypted (i. e. without forced encryption).
Good luck

[SOLVED] Installing ANY custom ROM bricks Oneplus 6

Hello!
I'm having quite a hard time figuring out what is happening on my new Oneplus 6.
The first time i flashed LineageOS 16 microg edition it booted but since i tried to restore stock ROM backup with TWRP it all went to hell.
Device immediately bricked, only booting to fastboot.
Had to use msm tool to unbrick. ( the first of so many times.... )
Then updated from settings to latest OOS 9.0.9.
unnlocked bootloader
and flashed again.
NO OS INSTALLED.
phone boots only in fastboot.
can't boot any recovery from fastboot. gives error.
if reboot to recovery blue led and black screen is all that i see.
only fix is msm.
From that point onwards i tried EVERY guide I could find (and recognize as valid of interest) here on xda, youtube, google.
Multiple times per guide.
here's an example of a "last resort" guide from https://forum.xda-developers.com/oneplus-6/how-to/guide-microg-oneplus-6-source-ligthway-t3874469
INSTALLATION TUTORIAL
Italic = recommended, but not mandatory. Do it if something doesn't work properly
0) DON'T RESTORE your apps until everything is set up, otherwise you'll have issues with GCM (getting instant notifications from messaging apps for example)
1) Reboot to blu spark TWRP
2) step deleted
3) Flash OOS
4) Flash TWRP
5) Reboot to recovery
6) Flash OOS
7) Flash TWRP
8) Reboot to recovery
9) Flash your custom ROM + TWRP + reboot to TWRP
10) Flash again your custom ROM + TWRP
11) Reboot to recovery
11 bis) Wipe data ("factory reset")
12) Flash Magisk
13) Reboot to system. It's just to make sure the installation worked.
... more on link
Click to expand...
Click to collapse
Tried also official lineage, SyberiaOS. Different previous version of the two (since I read in the lineage official thread others have this issue)
Basically at the point after flashing any of these roms results immediately in TWRP warning "no os is installed" at reboot attempt with or without re-flashing twrp after.
Then if rebooted just hangs on blue led. can't boot anything.
Meanwhile flashing OTAs + twrp results in bootable system.
Other things that i tried:
before unlocking BL update to latest OTA_34 -> 9.0.9, reboot, install again.
using mauronofrio twrp version https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3860815
Any ideas?
[SOLUTION]
If you're bricked follow this: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892
1 - Have last OOS installed in both slots
- update from settings, local update, latest OTA (Pie) from oneplus support site.​- reboot, let it complete​- apply again​2 - Enable OEM Unlock in Developer options
3 - Boot to Fastboot and unlock bootloader:
Code:
fastboot oem unlock
4 - Once in OOS reboot to fastboot and boot twrp:
Code:
fastboot boot <twrp-img-name>.img
5 - Push twrp + custom rom:
Code:
adb push <custom-rom-name>.zip <twrp-zip-name>.zip /sdcard
6 - Flash twrp in twrp
7 - Reboot to recovery
8 - Wipe system and Data
9 - flash ROM
10 - flash twrp
[IMPORTANT]
11 - Tap Reboot to recovery then if it says No OS installed! tap home button! Don't reboot! reboot = brick = msmdownloadtool
12 - Go in advanced menu and select Fix Recovery Bootloop and swipe
13 - THEN TRY TO MOUNT /system.
IF YOU'RE UNABLE TO MOUNT /system APPLY AGAIN THE FIX AND REPEAT FROM STEP 7​14 - Reboot to recovery
It WILL stil say No OS installed but now you'll be able to reboot to recovery​[/IMPORTANT]
15 - Once in recovery reboot to system.
If you've done everything correctly it won't complain again about no OS being installed and you'll get your rom up and running.​16 - Let it reboot to system and complete first configuration
17 - Now you can reboot and flash every module you like from twrp.
That's it. Hope this'll spare nightmares and storage write life.

This is a bad phone .. I have it too
تم الإرسال من ONEPLUS A6003 باستخدام Tapatalk

But you seem (from post history) to be able to install ROMs :crying:
As most of those who try i guess.
Maybe my phone is somehow damaged

What some guides miss out is that you have to install everything twice. Once on slot A and once on slot B and after each install, verify what slot you are on before reboot and then check what slot you are on after reboot. I ran into issues flashing Havoc OS onto my phone too and figured it out in the end after so many times that I was in fact installing stuff twice on the same slot because it never switched over. I'll run you through the order I did things so hopefully you can follow.
-Use MSM Tool to revert everything back to stock and once the phone is booted, update to 9.0.9 either by downloading the update through the phone or by local upgrade if you have the file to hand. (remember to only have the OOS file present as any other OS in zip form crashes the local updater). You don't need to do this if you are already rocking stock Oxygen OS.
-Once the phone has restarted after the upgrade, let the post update procedure finish before continuing.
-Enter developer mode and enable OEM unlocking, Advanced Restart and USB Debugging. From here, reboot to bootloader.
-Plug your phone into the PC now and assuming you have fastboot setup ready on your PC, type 'fastboot oem unlock' and use the volume keys to select the option to unlock and press the power button to select.
-After the phone has completed it's wipe cycle, re-enable Advanced Restart and USB Debugging. The OEM unlock option should be greyed out as it's already been enabled. Make sure you don't add a pin code or password just yet as you will enable encryption which will make the next steps harder than it should be.
-Boot back to bootloader and type 'fastboot boot twrp.img' (or whatever you named it. Make sure that the image file is in the same folder you initiated cmd or powershell)
-Once booted into TWRP, flash blu_spark TWRP as that supports encryption apparently and is more stable than any other. To make sure that the script executed on both slots, hit reboot and check what slot you are on and tap the button for the other slot. Now reboot back to recovery, check you are on the other slot and flash it again.
-Now flash your 9.0.9 OOS zip followed by TWRP once on slot A and once on slot B while making sure you are on the other slot when doing it a second time. Remember that you have to re-flash TWRP after any flashable file that alters the boot partition before you reboot or you will undo all your work. Just make it habit that you re-flash it every time and you should be good.
-Once OOS and TWRP have been flashed on BOTH slots, reboot back to recovery and do the whole process again with your custom ROM (Remembering to flash TWRP before you reboot and checking which slot you are one before and after each flash).
-Once that has completed, reboot back to recovery and flash Magisk on each slot and GApps or MicroG if your ROM supports it. You don't need to re-flash TWRP after this but I do anyway to keep the habit lol.
-Entirely up to you, but before you reboot to your fresh new OS, you can wipe internal storage ONLY if you want all traces of your previous OS gone, but this will also remove personal files etc. I generally just head into TWRP file manager and delete the Android folder and keep the rest.
If you run into issues like crashes on your new OS, reboot to recovery and do a factory reset, but you will also need to re-flash Magisk again. GApps installs itself to system, so you won't need to re-flash that. MicroG does not and will need setting up again. One thing that took me a while to realise is that if you try rebooting while your USB is plugged into your PC, you will sometimes enter download mode, so only keep it plugged in when you need it for MSM Tool or to transfer files across.
I'm pretty sure I put everything down the way I did it and didn't miss anything, but it is late and I am half asleep. Will check back in the morning and double check with a fresh brain.

Many thanks for your exhaustive reply!
Will follow this tomorrow morning with a fresh brain

Fixed!
Now I'll write a guide for those in the same situation.

franticboe said:
Hello!
I'm having quite a hard time figuring out what is happening on my new Oneplus 6.
The first time i flashed LineageOS 16 microg edition it booted but since i tried to restore stock ROM backup with TWRP it all went to hell.
Device immediately bricked, only booting to fastboot.
Had to use msm tool to unbrick. ( the first of so many times.... )
Then updated from settings to latest OOS 9.0.9.
unnlocked bootloader
and flashed again.
NO OS INSTALLED.
phone boots only in fastboot.
can't boot any recovery from fastboot. gives error.
if reboot to recovery blue led and black screen is all that i see.
only fix is msm.
From that point onwards i tried EVERY guide I could find (and recognize as valid of interest) here on xda, youtube, google.
Multiple times per guide.
here's an example of a "last resort" guide from https://forum.xda-developers.com/oneplus-6/how-to/guide-microg-oneplus-6-source-ligthway-t3874469
Tried also official lineage, SyberiaOS. Different previous version of the two (since I read in the lineage official thread others have this issue)
Basically at the point after flashing any of these roms results immediately in TWRP warning "no os is installed" at reboot attempt with or without re-flashing twrp after.
Then if rebooted just hangs on blue led. can't boot anything.
Meanwhile flashing OTAs + twrp results in bootable system.
Other things that i tried:
before unlocking BL update to latest OTA_34 -> 9.0.9, reboot, install again.
using mauronofrio twrp version https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3860815
Any ideas?
[SOLUTION]
If you're bricked follow this: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892
1 - Have last OOS installed in both slots
- update from settings, local update, latest OTA (Pie) from oneplus support site.​- reboot, let it complete​- apply again​2 - Enable OEM Unlock in Developer options
3 - Boot to Fastboot and unlock bootloader:
Code:
fastboot oem unlock
4 - Once in OOS reboot to fastboot and boot twrp:
Code:
fastboot boot <twrp-img-name>.img
5 - Push twrp + custom rom:
Code:
adb push <custom-rom-name>.zip <twrp-zip-name>.zip /sdcard
6 - Flash twrp in twrp
7 - Reboot to recovery
8 - Wipe system and Data
9 - flash ROM
10 - flash twrp
[IMPORTANT]
11 - Tap Reboot to recovery then if it says No OS installed! tap home button! Don't reboot! reboot = brick = msmdownloadtool
12 - Go in advanced menu and select Fix Recovery Bootloop and swipe
13 - THEN TRY TO MOUNT /system.
IF YOU'RE UNABLE TO MOUNT /system APPLY AGAIN THE FIX AND REPEAT FROM STEP 7​14 - Reboot to recovery
It WILL stil say No OS installed but now you'll be able to reboot to recovery​[/IMPORTANT]
15 - Once in recovery reboot to system.
If you've done everything correctly it won't complain again about no OS being installed and you'll get your rom up and running.​16 - Let it reboot to system and complete first configuration
17 - Now you can reboot and flash every module you like from twrp.
That's it. Hope this'll spare nightmares and storage write life.
Click to expand...
Click to collapse
i tried all the mentioned steps, nothing worked for me. Even i tried all the guides, here on xda and on youtube i am not able to boot my 1+6 it is getting booted to fastboot mode, after installing custom rom. But if i flash only OOS then it boots back properly.
But in case of a custom rom it boots back to fastboot mode, and then in the end msm tool is the last resort to lock bootloader and make it stock.

i tried all the mentioned steps, nothing worked for me. Even i tried all the guides, here on xda and on youtube i am not able to boot my 1+6 it is getting booted to fastboot mode, after installing custom rom. But if i flash only OOS then it boots back properly.
But in case of a custom rom it boots back to fastboot mode, and then in the end msm tool is the last resort to lock bootloader and make it stock.
Click to expand...
Click to collapse
If you are stuck on fastboot try
fastboot set_active other
then try rebooting recovery if fails try
fastboot boot pc-stored-twrp
I found changing the active slot via fastboot may unbrick it without msm. It all depends on what steps you actually take during installation.
For installing LOS try not flashing twrp after installation. Los comes with its own recovery. Anyway if it says no OS installed you HAVE to fix recovery bootloop.

How do I upgrade/clean flash from OOS 9.0.9(rooted) to 11 stable?

Hello friends,
Current setup:
Device: OP6
ROM: Stock OOS 9.0.9 stable
Kernel: ElementalX-OP6-3.19
Root status: Rooted with Magisk 23.0
TWRP 3.4.0 | blu_spark v9.115 - Current active slot: A
I wish to wipe the device and clean flash OOS 11 stable then install the latest TWRP, EX Kernel, and root using the latest Magisk. Please help me with the process so that I don't brick the device inadvertently.

The-Droidster said:
Hello friends,
Current setup:
Device: OP6
ROM: Stock OOS 9.0.9 stable
Kernel: ElementalX-OP6-3.19
Root status: Rooted with Magisk 23.0
TWRP 3.4.0 | blu_spark v9.115 - Current active slot: A
I wish to wipe the device and clean flash OOS 11 stable then install the latest TWRP, EX Kernel, and root using the latest Magisk. Please help me with the process so that I don't brick the device inadvertently.
Click to expand...
Click to collapse
Please make sure to take a back up of EVERYTHING ( be it any preferred method you use) . Once you have a backup of your complete phone please proceed to the next step by download the latest OOS 11 Full version( Not the OTA update).
Try updating your phone through Settings -> System Update.
Once the update is complete , Please make sure to reboot your phone to recovery mode once. Which should now be installed with Stock Recovery.
In some cases the stock recovery wipes everything on your phone and reboots.
If not you can wipe using the option Erase Everything including photos in memory.
Once the phone reboots and setup is complete. Reboot your phone once or twice.
The above step may sound weird but it helps you to identify any issue before next step.
MAKE SURE TO FOLLOW THE STEPS AS I HAVE STATED ELSE YOUR PHONE WILL END UP WITH CRASH DUMP MODE.
1.Make sure you have necessary ADB drivers installed on your PC.
2.Reboot your phone to Bootloader mode either by using command prompt or by pressing Volume + and Power key. (CMD : adb reboot bootloader )
3.Use Fastboot command to install the attached recovery file. Please do not use other TWRP files. ( CMD : Fastboot boot boot.img) ( boot.img is the file name attached).
4. The phone should reboot to TWRP recovery mode.
5. Under TWRP menu Navigate to Advanced -> Select Install Current TWRP.
6. The step should install your phone with TWRP on both slots.
7. Once install reboot your phone and check if OOS11 is still intact.
8. To verify if TWRP is installed as your recovery . Reboot your phone to recovery mode.
9. Once in recovery mode you can install the attached Magisk V23 apk using menu Install -> choose Magisk apk.
10. Reboot your phone and install Magisk using the same APK.
Viola you are all good to go if you have installed everything as mentioned.
Hope it helps now.

mm_rajesh said:
Please make sure to take a back up of EVERYTHING ( be it any preferred method you use) . Once you have a backup of your complete phone please proceed to the next step by download the latest OOS 11 Full version( Not the OTA update).
Try updating your phone through Settings -> System Update.
Once the update is complete , Please make sure to reboot your phone to recovery mode once. Which should now be installed with Stock Recovery.
In some cases the stock recovery wipes everything on your phone and reboots.
If not you can wipe using the option Erase Everything including photos in memory.
Once the phone reboots and setup is complete. Reboot your phone once or twice.
The above step may sound weird but it helps you to identify any issue before next step.
MAKE SURE TO FOLLOW THE STEPS AS I HAVE STATED ELSE YOUR PHONE WILL END UP WITH CRASH DUMP MODE.
1.Make sure you have necessary ADB drivers installed on your PC.
2.Reboot your phone to Bootloader mode either by using command prompt or by pressing Volume + and Power key. (CMD : adb reboot bootloader )
3.Use Fastboot command to install the attached recovery file. Please do not use other TWRP files. ( CMD : Fastboot boot boot.img) ( boot.img is the file name attached).
4. The phone should reboot to TWRP recovery mode.
5. Under TWRP menu Navigate to Advanced -> Select Install Current TWRP.
6. The step should install your phone with TWRP on both slots.
7. Once install reboot your phone and check if OOS11 is still intact.
8. To verify if TWRP is installed as your recovery . Reboot your phone to recovery mode.
9. Once in recovery mode you can install the attached Magisk V23 apk using menu Install -> choose Magisk apk.
10. Reboot your phone and install Magisk using the same APK.
Viola you are all good to go if you have installed everything as mentioned.
Hope it helps now.
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Wow, you've explained it in such great detail. Thank you, I'll try this approach and let you know how it goes.