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Cannot start ROM / permanent reboot into recovery

Hallo,
I have a problem. I flashed newest TWRP 2.8.7.1 (I also tried 2.8.7.0) onmy Mi4C and installed some ROMS (sMiUI, Decato, CM12.1) but even if flash of TWRPs and installation of ROMS was successful without error, the device is always booting into Recovery/TWRP.
So problem is that device is not starting into system!
- I tried with power button reset
- I tried with "reboot to system"
- I tried with battery removal!
- I also tried new installation of TWRP and/or several ROMS. (e.g. sideloading ADP is also working)
- I also made some (full) WIPEs / Fix Permissions
but it is always starting only to TWRP.
After device is starting, MUI-symbol appears for 5-10 seconds and then TWRP is loading, but not ROM.
What can I do? Maybe installation a new Kernel or something?
thanks in advance,
Jimmy

jjeans said:
Hallo,
I have a problem. I flashed newest TWRP 2.8.7.1 (I also tried 2.8.7.0) onmy Mi4C and installed some ROMS (sMiUI, Decato, CM12.1) but even if flash of TWRPs and installation of ROMS was successful without error, the device is always booting into Recovery/TWRP.
So problem is that device is not starting into system!
- I tried with power button reset
- I tried with "reboot to system"
- I tried with battery removal!
- I also tried new installation of TWRP and/or several ROMS. (e.g. sideloading ADP is also working)
- I also made some (full) WIPEs / Fix Permissions
but it is always starting only to TWRP.
After device is starting, MUI-symbol appears for 5-10 seconds and then TWRP is loading, but not ROM.
What can I do? Maybe installation a new Kernel or something?
thanks in advance,
Jimmy
Click to expand...
Click to collapse
Download fastboot rom and flash it

thank you that worked..
but I have still the problem when I flash several versions of TWRP, that a reboot/start of the system will always end up within the recovery.
Only a a reflash of fastboot rom helps, but then I have the old mi recovery that does not work for other ROMs :/
a strange behaviour.
So I can flash TWRP, but it is not possible to boot into the system...
Without a newer TWRP that can "boot into system" I cannot use Custom ROMS

jjeans said:
thank you that worked..
but I have still the problem when I flash several versions of TWRP, that a reboot/start of the system will always end up within the recovery.
Only a a reflash of fastboot rom helps, but then I have the old mi recovery that does not work for other ROMs :/
a strange behaviour.
So I can flash TWRP, but it is not possible to boot into the system...
Without a newer TWRP that can "boot into system" I cannot use Custom ROMS
Click to expand...
Click to collapse
How do you flash recovery tell me the procedure?

Talha7866 said:
How do you flash recovery tell me the procedure?
Click to expand...
Click to collapse
Hallo,
I used some manuals for flashing.
e.g.
en.miui.com/thread-166465-1-1.html
gammerson.com/2015/10/install-twrp-recovery-mi4c-root-it.html
+ some manuals from decuro rom and sMiUI Rom
In summary:
1. Pre steps: Download USB & Adb drivers / Download TWRP Recovery 2.8.7.0 for Xiaomi Mi4C / I also tried 2.8.7.1
2. Flashing: Boot phone into fastboot --> Connect phone with USB (I tried before and after boot to fastboot) --> CMD --> "fastboot flash recovery" <recovery-name>.img
3. After successful flash of 40-50 MB TWRP recovery I tried CMD "fastboot reboot" / I tried also without reboot command (with Vol+ & Power) / I tried also only with power button
Always system boots to TWRP recovery.
When I choose ROM afterwards with new TWRP recovery and flash it, it says successful installed, but reboot does not start to ROM
At the moment I always do fastboot rom reflash, that old system will come back and work. Flashing ROMS with old system (via updater app and old Miui recovery) is not working, it is always update error, even if I rename ROM to "update.zip".
What I never did rooting the phone, so flashify says "device not rooted". I do not know If I have to root, I assume not. I do not want root, because I will use a company app that needs an unrooted phone.
thanks,
Jimmy

jjeans said:
Hallo,
I used some manuals for flashing.
e.g.
en.miui.com/thread-166465-1-1.html
gammerson.com/2015/10/install-twrp-recovery-mi4c-root-it.html
+ some manuals from decuro rom and sMiUI Rom
In summary:
1. Pre steps: Download USB & Adb drivers / Download TWRP Recovery 2.8.7.0 for Xiaomi Mi4C / I also tried 2.8.7.1
2. Flashing: Boot phone into fastboot --> Connect phone with USB (I tried before and after boot to fastboot) --> CMD --> "fastboot flash recovery" <recovery-name>.img
3. After successful flash of 40-50 MB TWRP recovery I tried CMD "fastboot reboot" / I tried also without reboot command (with Vol+ & Power) / I tried also only with power button
Always system boots to TWRP recovery.
When I choose ROM afterwards with new TWRP recovery and flash it, it says successful installed, but reboot does not start to ROM
At the moment I always do fastboot rom reflash, that old system will come back and work. Flashing ROMS with old system (via updater app and old Miui recovery) is not working, it is always update error, even if I rename ROM to "update.zip".
What I never did rooting the phone, so flashify says "device not rooted". I do not know If I have to root, I assume not. I do not want root, because I will use a company app that needs an unrooted phone.
thanks,
Jimmy
Click to expand...
Click to collapse
I have had the same issue, and read somewhere that it is because you tried flashing a rom in stock recovery and failed, that causes recovery bootloop. I was in same position other than i erased most og my partitions except recovery, and then installed fastboot rom, and it was all good again. Not saying ypu should erase any partitions! Rather not try and flash anything in stock recovery ever.

zhart said:
I have had the same issue, and read somewhere that it is because you tried flashing a rom in stock recovery and failed, that causes recovery bootloop. I was in same position other than i erased most og my partitions except recovery, and then installed fastboot rom, and it was all good again. Not saying ypu should erase any partitions! Rather not try and flash anything in stock recovery ever.
Click to expand...
Click to collapse
Thank you for your answer.
So I can do:
1. Wipe all data (it is the only option in recovery)
2. Re-flash fastboot rom
3. Try again to flash new recovery & install custom ROM
Is that correct?
What partition can I securely erase? and how? because erase is only possible with newer Recovery.

jjeans said:
Thank you for your answer.
So I can do:
1. Wipe all data (it is the only option in recovery)
2. Re-flash fastboot rom
3. Try again to flash new recovery & install custom ROM
Is that correct?
What partition can I securely erase? and how? because erase is only possible with newer Recovery.
Click to expand...
Click to collapse
I would clean install fastboot rom, and then install the latest recovery, and try to install a rom. All from buttom so you know exactly what you have done
I accidentaly erased my partitions with fastboot. Data, boot, and internal ? I think. Would not recomend it.

Sorry, what exaclty is a fastboot rom and where do i get it?

zhart said:
I would clean install fastboot rom, and then install the latest recovery, and try to install a rom. All from buttom so you know exactly what you have done
I accidentaly erased my partitions with fastboot. Data, boot, and internal ? I think. Would not recomend it.
Click to expand...
Click to collapse
I don't know what happens all the time.
Currently I used MiFlash to make a clean fastboot install. I choosed in MiFlash "flash_all.bat" to do it. (flash_all.bat means everything was reinstalled, also recovery.img). Afterwards everything was normal, MiRecovery 2.x and Mi4C MiUI 7 chinese version was installed without error. But after manual flashing TWRP with "fastboot flash recovery xxx", the recovery loop was again! :/
So AGAIN I made a clean fastboot install again with MiFlash application, but this time I REPLACED the recovery.img with the newest TWRP (renamed to recovery.img) within the fastboot rom installation folder "images". I could see that MiFlash flashed THIS! recovery.img, but after that again the old Mi Recovery was on the device and no TWRP. But why? I replaced the original recovery.img file! How can that happen?
The flash_all.bat included flashing recovery and I could confirm it during the fastboot flash. Strange.
I used fastboot rom libra_images_V7.0.16.0.LXKCNCI_20151104.0000.4_5.1_cn
MiFlash newest version and I tried with 2 TWRP versions (one from decuro and one from sMiUI)

Maybe my phone has a problem with flahing recoverys in general I don't know.

jjeans said:
Maybe my phone has a problem with flahing recoverys in general I don't know.
Click to expand...
Click to collapse
it sound very strange i did all these steps and my phone was all good after it. is it the newest recovery? the one with material theme and touch fix you are using? if not, then thats the only difference between your procedure and mine :/
i hope you can fix it
Edit: I can see that i have the following fastboot roms downloaded, so i used one of these:
libra_images_V7.0.6.0.LXKCNCI_20150917.0000.1_5.1_cn_4dd76a55cb.tgz
or libra_images_V7.0.15.0.LXKCNCI_20151104.0000.4_5.1_cn_f6e955ee14.tgz

What I would do, is fastboot original ROM, reboot to recovery, factory reset, recboot to fastboot to re-flash TWRP and then command "fastboot boot recovery" to get to TWRP and install your ROM.
Didn't has this pb on Mi4c, but had it a few times on Nexus5.
Hope this helps...

Hello, don't know if applicable. I've read on mi forums that dev Roms need dev recovery, that's different from twrp for stock rom.....

guegangster said:
What I would do, is fastboot original ROM, reboot to recovery, factory reset, recboot to fastboot to re-flash TWRP and then command "fastboot boot recovery" to get to TWRP and install your ROM.
Didn't has this pb on Mi4c, but had it a few times on Nexus5.
Hope this helps...
Click to expand...
Click to collapse
Hallo,
thank you, that worked for me finally
I have now used another TWRP 2.8.7.1 with touch-issue, but that is now no problem.
I flashed also xiaomi.eu rom, for now seems to be stable and cleaned.
strange everything, but now it is fixed.
BR,
Jimmy

TWRP and Magisk help please!

I've been away for about a year so I'm behind on everything right now. I just flashed a factory image to get back to Android 8.1 and set my phone up from scratch. I would like to install TWRP and Magisk but have some questions..
TWRP. Do I just find the latest TWRP for this phone and the process is the same as before? Fastboot flash twrp img and then install TWRP zip?
Magisk: I have never used it before so I'm not to familiar at all. From what I can tell I just download the zip and install via twrp? Is there a specific version I should be looking for for the Pixel on 8.1 or will the latest from the Magisk forum work?
I've searched around and keep seeing random issues so I'm wondering if it's as straight forward as mentioned above. I see posts about people trying to install TWRP and Magisk and bootlooping and stuff like that. Thanks!!

Hello look here for the latest Recovery. https://twrp.me/google/googlepixel.html
Flash the TWRP image over the PC.
fastboot boot recovery TWRP.img
Then Flash it via TWRP. (the zip file on your sdcard).
The device has an A and B Partition. It would Flash on both.
If you Flash an custom Rom you Flash it on A Partition you must Flash TWRP.zip again. Reboot the device. After an reboot to Recovery you on B Partition automatically. Here you can Flash Magisk and other zips like custom Kernel or other.
If you Flash the custom Rom on B Partition you must flash magisk and other stuff on A Partition.

With Magisk 18.0 stable, some people have bootloops when flashing TWRP.
Best thing to do is just boot TWRP img when needed instead of flash the zip, maybe this has been fixed with latest canary builds but it's better boot the image just to be sure

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

Android 10 & Custom ROM & Slot A + B

Hello Android developers and enthusiasts,
I've been installing ROM since 2011 so I would not call myself a n00b however I seemingly cannot install an Android 10 ROM without issues. So this is a plea for help and advice!
I know you need to have OOS installed before you install a custom ROM so I use Auto Flash ROM to install OOS with Android 9 via System Update. I then boot and set up phone, install update, reboot and then install the OOS android 10 via the System Update. I then have a OOS installed with Android 10.
Why would I use such an elaborate method you may ask? Well, I tried to download latest OOS from OnePlus site and wipe phone and then install OOS but that fails (didn't record the error I'm afraid).
I then download all the ROM + dependencies on an USB stick and use fastboot to flash Mauronofrio TWRP. I then follow the steps in the ROM instructions. For EvolutionX these were:
First Time Install / Clean Flash
- Have OOS 10.3 flashed to both slots!!
- Boot to recovery
- Flash BUILD.zip (TWRP built-in)
- Wipe Cache
- Format data
- Reboot to recovery (optional)
- Flash Magisk.zip (optional)
- Reboot to system & #KeepEvolving
Click to expand...
Click to collapse
I followed these to the letter but when i rebooted system I got a snapdragon error and it wouldn't even boot into TWRP until I used fastboot to flash boot into TWRP. I also tried HavocROM and same happened.
I did manage to install Syberia using above method but I didn't like the ROM that much unfortunately.
Finally, I've also read up a lot on Slot A and B but it still is not very clear to me. I think I understand it but what happens does not confirm my theories
I therefore have some questions:
- Should I be able to wipe my phone and install OOS on a wiped phone and then install a custom ROM?
- When I install ROM and it says "Reboot Recovery" and then install ROM again. But if I check what slot is being used the reboot doesn't seem to change the slot. My assumption was that booting recovery was to install ROM in the other slot. Is that correct?
Any other tips you can give me?
Again, I like to stress I am not new to installing custom ROMs so I am a bit disappointed that this is causing me such grief.
Following some answers I will retry tomorrow so I can give some more details if needed. For now, appreciate any help.

roel1976 said:
Hello Android developers and enthusiasts,
I've been installing ROM since 2011 so I would not call myself a n00b however I seemingly cannot install an Android 10 ROM without issues. So this is a plea for help and advice!
I know you need to have OOS installed before you install a custom ROM so I use Auto Flash ROM to install OOS with Android 9 via System Update. I then boot and set up phone, install update, reboot and then install the OOS android 10 via the System Update. I then have a OOS installed with Android 10.
Why would I use such an elaborate method you may ask? Well, I tried to download latest OOS from OnePlus site and wipe phone and then install OOS but that fails (didn't record the error I'm afraid).
I then download all the ROM + dependencies on an USB stick and use fastboot to flash Mauronofrio TWRP. I then follow the steps in the ROM instructions. For EvolutionX these were:
I followed these to the letter but when i rebooted system I got a snapdragon error and it wouldn't even boot into TWRP until I used fastboot to flash boot into TWRP. I also tried HavocROM and same happened.
I did manage to install Syberia using above method but I didn't like the ROM that much unfortunately.
Finally, I've also read up a lot on Slot A and B but it still is not very clear to me. I think I understand it but what happens does not confirm my theories
I therefore have some questions:
- Should I be able to wipe my phone and install OOS on a wiped phone and then install a custom ROM?
- When I install ROM and it says "Reboot Recovery" and then install ROM again. But if I check what slot is being used the reboot doesn't seem to change the slot. My assumption was that booting recovery was to install ROM in the other slot. Is that correct?
Any other tips you can give me?
Again, I like to stress I am not new to installing custom ROMs so I am a bit disappointed that this is causing me such grief.
Following some answers I will retry tomorrow so I can give some more details if needed. For now, appreciate any help.
Click to expand...
Click to collapse
Hi!
I had this exact same problem a couple months ago. Rebooting to recovery used to change slots for me, but then it stopped.
What you can do is change active slot manually on Reboot section. By doing this, you don't even have to reboot to recovery in other to flash the other slot (altough I do it just to be safe).
And remember: the rom is flashed on the inactive slot, so after the final flash you gotta change slots one more time.

When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.

Thanks for the info, it really helps.
One question: in your experience can you wipe your phone and then installl OOS on the wiped phone?

So I just booted into TWRP, did standard wipe action: Data, Cache, and Dalvik. I then try to flash the latest OOS zip and I then get this error:
Error applying update: 7 (ErrorCode::kInstallDeviceOpenError)
Updater process ended withL ERROR: 1.
Error installing zip file: '/usbstorage/00, INSTALL/OnePlus6Oxygen_22_OTA_044_all_2002220042_a46425f1bfe43d2.zip
FIXED: I was using TWRP 3.3.1.11 and I then found out there was a newer version: 3.3.1.18 which you can get here: https://sourceforge.net/projects/mauronofrio-twrp/files/Enchilada/
I am now able to install OOS from scratch (ie wiped phone).

remewer said:
When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.
Click to expand...
Click to collapse
I tried this method and everytime I can't seem to flash oos onto the other slot because when it reboots to recovery the folder is encrypted so I can't see which file is the zip. How do I flash the seccond OOS if it shows up encrypted in TWRP.
I have a OnePLus 6 with the latest OOS now because I got into boot loop and i used a flash-all.bat to get back to stock. I also use maronofrio's twrp because that works.

harshybar said:
I tried this method and everytime I can't seem to flash oos onto the other slot because when it reboots to recovery the folder is encrypted so I can't see which file is the zip. How do I flash the seccond OOS if it shows up encrypted in TWRP.
I have a OnePLus 6 with the latest OOS now because I got into boot loop and i used a flash-all.bat to get back to stock. I also use maronofrio's twrp because that works.
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If you can boot OOS fine, try to do a local update so that both slots have OOS. Then try to flash a custom ROM again using the method I've mentioned.

remewer said:
If you can boot OOS fine, try to do a local update so that both slots have OOS. Then try to flash a custom ROM again using the method I've mentioned.
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When you say local update you mean while I am running the rom, go to settings then do update from local source?

harshybar said:
When you say local update you mean while I am running the rom, go to settings then do update from local source?
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Exactly

GuestD2559 said:
When you flash one ROM on top of another different ROM, particularly OOS to custom, always wipe data and not format data, because some custom ROMs do not support being unencrypted in the first time and then encrypt on the first boot. So do it like this:
Flash OOS
Flash TWRP
Reboot recovery
Flash OOS
Flash TWRP
Reboot system
Complete initial setup
Reboot to recovery
Wipe (not format) data
Flash custom ROM (start here for dirty flashing ROM update)
Flash TWRP
Reboot recovery
Flash custom ROM
Flash TWRP
Reboot recovery
Flash Magisk
Reboot system
I don't like built-in TWRP in custom ROMs. I always use @mauronofrio's TWRP. So regardless if the custom ROM I'm using has TWRP built-in or not, I always use the method above. I didn't have a problem with installing ROMs using his TWRP. Slots always switch when flashing ROM.
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@Cypher_01, Try this guide. This worked for me. I did not reinstall Nikgapps. Maybe that's where the problem lies? Don't forget to change the update slot at the end before you restart.​