Booting/Recovery issues, Need help. (yes I researched) - OnePlus 6 Questions & Answers

Going to try to give as much information as possible so it will help me figure this out.
I have been working with Renovate module and rom/ Different magisk etc.
The display within the settings has been always messed up and crashes upon using.
So someone suggested a factory reset.
Pre-reset. I did a nandroid backup as well as Titanium backup , and google sync just in case.
Then everything was fine. But had some issues with Magisk installer. Basicly it was not correct and root didn't work correctly.
Flashing some module updates and newest Renovate update.
Then going back to reboot, all of a sudden it goes into fastboot mode.
Tried restarting in recovery , and it would not. It always wants to go to fastboot mode.
Posting and getting some advice (Thanks) they said I bricked my phone.
I tried everything I could to get data that I did a backup of off my phone (This is where I with it was micro SD)
Finally got into TWRP VIA fastboot boot ( had to change active slot) and it was encrypted.....
Booted again using Bluespark via fastboot (Think it was slot b this time) and was able to get a full SD backup onto PC.
Thinking this is going good, I flashed bluespark into slot b?.
Well it never took, and just showed a white light on top , the notification light.
Tried a few flashing VIA fastboot, and last thing I did was fastboot boot an official TWRP, to a slot that worked.
Tried Msmdownloadtool, and various other ways to get stuff going.
Tried Fastboot flashall and fails as well
Can anyone help me get the phone back so recovery works or help in any way?

eracet said:
Going to try to give as much information as possible so it will help me figure this out.
I have been working with Renovate module and rom/ Different magisk etc.
The display within the settings has been always messed up and crashes upon using.
So someone suggested a factory reset.
Pre-reset. I did a nandroid backup as well as Titanium backup , and google sync just in case.
Then everything was fine. But had some issues with Magisk installer. Basicly it was not correct and root didn't work correctly.
Flashing some module updates and newest Renovate update.
Then going back to reboot, all of a sudden it goes into fastboot mode.
Tried restarting in recovery , and it would not. It always wants to go to fastboot mode.
Posting and getting some advice (Thanks) they said I bricked my phone.
I tried everything I could to get data that I did a backup of off my phone (This is where I with it was micro SD)
Finally got into TWRP VIA fastboot boot ( had to change active slot) and it was encrypted.....
Booted again using Bluespark via fastboot (Think it was slot b this time) and was able to get a full SD backup onto PC.
Thinking this is going good, I flashed bluespark into slot b?.
Well it never took, and just showed a white light on top , the notification light.
Tried a few flashing VIA fastboot, and last thing I did was fastboot boot an official TWRP, to a slot that worked.
Tried Msmdownloadtool, and various other ways to get stuff going.
Tried Fastboot flashall and fails as well
Can anyone help me get the phone back so recovery works or help in any way?
Click to expand...
Click to collapse
UPDATE: When booting into TWRP 3.2.2.0 it gives me encrypted files. When booting into TWRP 3.2.3.0 it gives me non-encyrpted files and asks for password.
Booting anything to slot A gives me a load error. failed to authenticate.
Update2: Now I cannot get Bluspark TWRP or stock recovery to load VIA Fastboot. Only TWRP 3.2.3.0 works and loads correctly
Update 3: Keep having to do different versions of TWRP to get anything going, even tried OTA and did not work.
Update 4: Phone wants to boot into Qualcomm HS-USB Diagnostics mode when light is on.

Found you
Next time tag me
I'm the same guy on the oneplus forums
Send me a private message here or on the oneplus forums and I'll take it from there

Update: I have resolved the issue. Please do not post any further comments on this because
The issue is already resolved, duh

Related

Need help recovering my phone from bootloop after trying to update custom rom

Today I tried to finally update to the latest version of crDroid, but ended up having a bunch of issues doing so, and after a lot of troubleshooting and trying to fix it, I ended up putting it into a bootloop of some sort instead.
I'm pretty sure the last thing I tried was installing a different version of TWRP to see if that version would let me properly install the rom, and stop my phone from always rebooting into recovery mode.
Trying to turn it on normally or boot into TWRP leaves it hanging on the "Redmi" boot screen, it can boot into fastboot mode though.
I'm guessing that the only way to recover my phone at this point is to flash the Official MIUI rom back onto the phone, but that also involves wiping Data and losing pretty much everything I've put on the phone.
I was smart enough to make a TWRP of the Data folder, but while making the backup, the console said it doesn't include all personal files or something.
How much of my personal data and files can I rescue from the phone in this state, and how can I do that before it gets wiped when fixing it?
Also, I think I really need some help in actually restoring my phone and flashing the custom rom properly.
No matter how much effort I put into figuring out how to do this stuff, unexpected issues always seem to happen, and turns something that initially seemed so simple into multiple hours of troubleshooting.
The only way I think i've gotten rom flashing to work at all was by wiping everything and installing the official MIUI rom, but I don't want to be losing my data every month when an update comes out.
So, could someone please help me get my phone working again?
Edit: I ended up fixing my own issue by ADB flashing on a different release of TWRP, and then installing fcrypt disabler after the rom but before everything else.
Sanarise said:
Today I tried to finally update to the latest version of crDroid, but ended up having a bunch of issues doing so, and after a lot of troubleshooting and trying to fix it, I ended up putting it into a bootloop of some sort instead.
I'm pretty sure the last thing I tried was installing a different version of TWRP to see if that version would let me properly install the rom, and stop my phone from always rebooting into recovery mode.
Trying to turn it on normally or boot into TWRP leaves it hanging on the "Redmi" boot screen, it can boot into fastboot mode though.
I'm guessing that the only way to recover my phone at this point is to flash the Official MIUI rom back onto the phone, but that also involves wiping Data and losing pretty much everything I've put on the phone.
I was smart enough to make a TWRP of the Data folder, but while making the backup, the console said it doesn't include all personal files or something.
How much of my personal data and files can I rescue from the phone in this state, and how can I do that before it gets wiped when fixing it?
Also, I think I really need some help in actually restoring my phone and flashing the custom rom properly.
No matter how much effort I put into figuring out how to do this stuff, unexpected issues always seem to happen, and turns something that initially seemed so simple into multiple hours of troubleshooting.
The only way I think i've gotten rom flashing to work at all was by wiping everything and installing the official MIUI rom, but I don't want to be losing my data every month when an update comes out.
So, could someone please help me get my phone working again?
Click to expand...
Click to collapse
can u boot into twrp?
if u can boot, while in twrp, connect your phone via usb cable to pc. u can copy everything on pc
Simoom Sadik said:
can u boot into twrp?
if u can boot, while in twrp, connect your phone via usb cable to pc. u can copy everything on pc
Click to expand...
Click to collapse
Unfortunately, I can't.
Trying to boot into TWRP just gets stuck on the 'Redmi' boot logo.
I just remembered that you can install TWRP over ADB, and that Peter's one says it works even when the system partition is empty, so maybe the issue is the TWRP I installed and could possibly undo this part of the issue over ADB.
It won't fix the issue preventing my from updating my rom, but recovery only is still better than a soft brick.
Edit: That worked, i've put Peter's TWRP back on, and it's launching into recovery mode/TWRP again now
twrp not boot after successfully flash in this rom
Sanarise said:
Unfortunately, I can't.
Trying to boot into TWRP just gets stuck on the 'Redmi' boot logo.
I just remembered that you can install TWRP over ADB, and that Peter's one says it works even when the system partition is empty, so maybe the issue is the TWRP I installed and could possibly undo this part of the issue over ADB.
It won't fix the issue preventing my from updating my rom, but recovery only is still better than a soft brick.
Edit: That worked, i've put Peter's TWRP back on, and it's launching into recovery mode/TWRP again now
Click to expand...
Click to collapse
flash latest twrp download from github, install twrpbuilder img twrp ,it boot fine and you will copy your data to pc and then install any other twrp img which u want , dont wipe anything from phone before phone boot.flash only original twrp builder 3.2.3.1 official,it boot only on latest updates.
Why nobody use orangefox?
is your issue solve or not tell,
Simoom Sadik said:
can u boot into twrp?
if u can boot, while in twrp, connect your phone via usb cable to pc. u can copy everything on pc
Click to expand...
Click to collapse
if your problem is not solve then tell me you need to flash a fastboot rom first with save user data.bat file and when it installed then you can install twrp builder 3.2.1. and then boot to twrp this methods working fine,if you recently flashed any android 10 rom then first you need to flash a miui fastboot rom,or flash it via command mode direct only 3 files
first click on extract a fastboot rom and copy boot system and vender file with flash.all bat file and make a new folder then click on flash.bat save user data file to flash these images
or you can do this manually
fastboot flash system system.img
fastboot flash vender vender.img
fastboot flash boot boot.img
then reboot device to fastboot again
now flash latest official twrp builder 3.2.3.1 img twrp and take all your data backup,
in fastboot flash latest miui do not downgrade direct otherwise you lost your data,
after this if you sucess then you can flash your old rom which is running before issue of boot loop of redmi logo
it will deincrypt your data safely and then root device and boot normally, if you lost anything then contact me with mail or whatsapp i will help you,7009197673 india
and this twrp work on all version from chines to global beta stable and indian stable
joke19 said:
Why nobody use orangefox?
Click to expand...
Click to collapse
In the end, I did try orangefox, and it might have been part of why it worked.
However, the crDroid installation instructions specifically mentions using Peter's TWRP, so I initially used that one.
anmoltinder said:
if your problem is not solve then tell me you need to flash a fastboot rom first with save user data.bat file and when it installed then you can install twrp builder 3.2.1. and then boot to twrp this methods working fine,if you recently flashed any android 10 rom then first you need to flash a miui fastboot rom,or flash it via command mode direct only 3 files
Click to expand...
Click to collapse
Thank you for the effort you put into typing up a guide to help me, but I ended up fixing my own problem.
I was able to use fastboot to flash on a better TWRP release, and then get the rom to install properly by installing fcrypt-disabler just after it.
Sanarise said:
Today I tried to finally update to the latest version of crDroid, but ended up having a bunch of issues doing so, and after a lot of troubleshooting and trying to fix it, I ended up putting it into a bootloop of some sort instead.
I'm pretty sure the last thing I tried was installing a different version of TWRP to see if that version would let me properly install the rom, and stop my phone from always rebooting into recovery mode.
Trying to turn it on normally or boot into TWRP leaves it hanging on the "Redmi" boot screen, it can boot into fastboot mode though.
I'm guessing that the only way to recover my phone at this point is to flash the Official MIUI rom back onto the phone, but that also involves wiping Data and losing pretty much everything I've put on the phone.
I was smart enough to make a TWRP of the Data folder, but while making the backup, the console said it doesn't include all personal files or something.
How much of my personal data and files can I rescue from the phone in this state, and how can I do that before it gets wiped when fixing it?
Also, I think I really need some help in actually restoring my phone and flashing the custom rom properly.
No matter how much effort I put into figuring out how to do this stuff, unexpected issues always seem to happen, and turns something that initially seemed so simple into multiple hours of troubleshooting.
The only way I think i've gotten rom flashing to work at all was by wiping everything and installing the official MIUI rom, but I don't want to be losing my data every month when an update comes out.
So, could someone please help me get my phone working again?
Edit: I ended up fixing my own issue by ADB flashing on a different release of TWRP, and then installing fcrypt disabler after the rom but before everything else.
Click to expand...
Click to collapse
help.I woke up yesterday and I turned on my phone and it is stuck on the Mi logo.All i can do is get it to fastboot thing.It seems like you and I have the same problem and I would love to have some help from you
Fcsubxrhi said:
help.I woke up yesterday and I turned on my phone and it is stuck on the Mi logo.All i can do is get it to fastboot thing.It seems like you and I have the same problem and I would love to have some help from you
Click to expand...
Click to collapse
If you can access fastboot, then flash TWRP.... Enter recovery, wipe your system partitions and then flash the Stock MIUI ROM or use the MiFlash tool. Make sure you aren't flashing an older version of the ROM than the onle already installed.
CongestedHangman said:
can u boot into twrp?
if u can boot, while in twrp, connect your phone via usb cable to pc. u can copy everything on pc
Click to expand...
Click to collapse
I have the same problem that stated after installing the update for derpfest and I can boot into twrp. Any solution for me?

Can't reboot to Recovery after upgrade to Android 10

Hello everyone,
As I mentioned in the title, since I upgraded to Android 10, can't boot to recovery.
Dowloaded latest version of the Adb kit, and while issuing
adb reboot recovery
the phone reboots but goes to normal boot.
Tried manually (power + vol down etc.) and when choosing Recovery - same thing happens.
Needless to say that my laptop is authorized debug device and phone is in debug mode etc. - I have done this many times before Android 10 update.
All I try to do is to sideload the latest OTA as I did many times before because my phone is rooted and the updates do not install automatically.
Pixel (First generation)
Rooted with Magisk
Bootloader unlocked
Stock recovery (using TWRP without installing it when flashing Magisk)
Hope somebody can advise. Obviously there is something new in Android 10 which has to be set (like the need for debugging authorization for example, which I already did).
Thank you
John
Im getting a similar problem. I get stuck on th Google logo screen. I cant hard-reset, recovery mode or boot, the only things that works is th barcode.
Android 10 changed something in the ramdisk that you can't install TWRP directly on the phone. You have to boot it via PC using "fastboot boot <insert twrp image name>.img"
You can try installing twrp to ramdisk. Put twrp 3.3.1-0.img in your devices storage and then fastboot twrp 3.3.0-0 (disable pin etc first) then once it's booted go to advanced and select install to ramdisk and select the 3.3.1-0.img and it should install it. You may get a not enough storage error on 10/Q (I did) bit worth a punt. Make a back up first as usual, if no good flash a fresh factory.img and see if that cures it and then restore your apps/data etcfrom your Google back up (if you use it)
Good luck
junglism93 said:
You can try installing twrp to ramdisk. Put twrp 3.3.1-0.img in your devices storage and then fastboot twrp 3.3.0-0 (disable pin etc first) then once it's booted go to advanced and select install to ramdisk and select the 3.3.1-0.img and it should install it. You may get a not enough storage error on 10/Q (I did) bit worth a punt. Make a back up first as usual, if no good flash a fresh factory.img and see if that cures it and then restore your apps/data etcfrom your Google back up (if you use it)
Good luck
Click to expand...
Click to collapse
Thank you for the advice, however as I mentioned in my original post I don't want to install TWRP permanently , and the problem is that I cannot go to the stock recovery mode which has no connection to TWRP. There is something with Android 10 which changed since 9 and I'm interested to find what. Everything worked fine before the upgrade.
Also, the option to flash factory image and restore (I also have Titanium in addition to Google backup) is a too much of a hassle. I use this phone for real, not only to play with it.
Anyway, again thank you for your input.
John
Sorry mate, re read your OP. I just tried booting into the aosp recovery and got the same issue! My guess is its magisk as I could boot into the aosp recovery prior to installing it. Re flash or restore the previous boot.img or a stock boot.img and it should boot into aosp recovery again. Magisk must be installing to or patching the aosp recovery ramdisk and stopping it booting. Other than that just fastboot twrp and use that.
Edit: it's magisk, restored original images and it booted into aosp recovery first try.
I've had no problems installing TWRP 3.3.0.0 normally after using an *.img file to get TWRP started. EDIT: and booting into it.
junglism93 said:
Sorry mate, re read your OP. I just tried booting into the aosp recovery and got the same issue! My guess is its magisk as I could boot into the aosp recovery prior to installing it. Re flash or restore the previous boot.img or a stock boot.img and it should boot into aosp recovery again. Magisk must be installing to or patching the aosp recovery ramdisk and stopping it booting. Other than that just fastboot twrp and use that.
Edit: it's magisk, restored original images and it booted into aosp recovery first try.
Click to expand...
Click to collapse
You are right. I did open Magisk and from the uninstall options choosed "Restore images" (no need to do complete uninstall, which is the other option). After that I was able to boot in recovery etc. I guess this is what you meant in your PS. At the end re-flashed Magisk and all is back to normal.
I will alert the Magisk team about the issue (if they are not already aware).
Case closed.
Thanks again.
John
Master Cylinder said:
I've had no problems installing TWRP 3.3.0.0 normally after using an *.img file to get TWRP started. EDIT: and booting into it.
Click to expand...
Click to collapse
Please read my OP. I was clear that I DON'T want to install TWRP permanently and this was never the problem.
The problem is solved (kind of). See the other posts.
Thank you.
John
I thought TWRP wasn't compatible with Android 10 yet? I am seeing mixed things
aholeinthewor1d said:
I thought TWRP wasn't compatible with Android 10 yet? I am seeing mixed things
Click to expand...
Click to collapse
It works just fine.
Mzprx said:
It works just fine.
Click to expand...
Click to collapse
Are there steps for how to install somewhere? I keep reading that it's not working on the Pixel with Android 10. Thanks
aholeinthewor1d said:
Are there steps for how to install somewhere? I keep reading that it's not working on the Pixel with Android 10. Thanks
Click to expand...
Click to collapse
It is a mess. It works with Pixel (I have this one and can confirm) and supposedly Pixel 2. It won't work for brand new phones arriving with factory installed Android 10.
Read the following:
https://twrp.me/site/update/2019/10/23/twrp-and-android-10.html#
After that, if you want to try, go to the page below to find instructions for your device. Note that the list is by manufacturer, so if you are looking for Pixel, it is under Google.
https://twrp.me/Devices/
Just in case - backup and have the factory image for your phone handy in case something goes wrong. For google phones you can download the image and see instructions here:
https://developers.google.com/android/images
Note that I never installed TWRP permanently, so I can't say if the permanent installation will work (I think it should, but not sure). Typically I just load TWRP and use it to flash pakages, but at the end I'm keeping the stock recovery.
Hope this helps. Good luck.
John
Mzprx said:
It is a mess. It works with Pixel (I have this one and can confirm) and supposedly Pixel 2. It won't work for brand new phones arriving with factory installed Android 10.
Read the following:
https://twrp.me/site/update/2019/10/23/twrp-and-android-10.html#
After that, if you want to try, go to the page below to find instructions for your device. Note that the list is by manufacturer, so if you are looking for Pixel, it is under Google.
https://twrp.me/Devices/
Just in case - backup and have the factory image for your phone handy in case something goes wrong. For google phones you can download the image and see instructions here:
https://developers.google.com/android/images
Note that I never installed TWRP permanently, so I can't say if the permanent installation will work (I think it should, but not sure). Typically I just load TWRP and use it to flash pakages, but at the end I'm keeping the stock recovery.
Hope this helps. Good luck.
John
Click to expand...
Click to collapse
Thanks. Yea from what I can tell no one has had luck actually installing it on the Pixel with Android 10 yet. I'm familiar with how to fix everything if something goes wrong. I would try but others have already tried and failed. It won't install for them.
firstly, dont use whatever ****ty platform-tools you are using, get them from here.
secondly, you dont install recovery on android 10 yet, it doenst work. you have to just boot to twrp using `fastboot boot twrp.img` once you are in bootloader mode.

Fastboot Bootloop

I got my OnePlus 7 Pro today and tried to install Magisk by patching the boot.img. After trying to flash the patched image, I now have an issue where rebooting the devices leads me straight back to the bootloader. Trying to enter recovery also leads me straight back to the bootloader. I tried flashing the original boot.img I extracted from the OTA update file provided by OnePlus, but it still isn't working. I do not have TWRP or any custom recovery installed. Any help would be much appreciated. I noticed similar threads, however they all installed twrp, though I haven't yet as trying to run "fastboot boot twrp.img" always resulted in it booting to a screen saying "fastboot mode" which wasn't terribly helpful.
Edit: Its not the tmobile/5g/carrier version. I purchased it through OnePlus' website though I forget the exact model number.
Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.
Faith1105 said:
Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.
Click to expand...
Click to collapse
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....
mnbvcxzl90 said:
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....
Click to expand...
Click to collapse
Ok, so, trying to restore stock seems to have failed miserably.... any advice is most welcomed qq
OK.... so trying to unbrick the device using the msm stuff, I couldn't even make it to the downloader screen. After holding volume +/- and powering off, my screen is now black HOWEVER the phone gets detected by windows when I plug & unplug it. I have no idea what to do anymore. Someone please help
Figured I'd give the solution here in case someone else is in the same exact problem as me:
Follow the instructions over at https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
I tried to de-brick it using the fastboot roms and all that, no dice. The only thing that seems to have worked was following the above and using the msm tool. Everything wiped, but hey, at least the phone is bootable again and now I have a way to fix it should this happen again. Yay for happy endings.
Edit: Also, following Faith1105's advice, flashing twrp to boot instead of trying to just boot it first worked successfully and from there I was able to install magisk.
Edit 2: Now wifi isn't working.... why life, why...
Edit 3: OK: EVERYTHING IS GOOD NOW. Twrp ran into a boot loop issue, used twrp to flash the most recent android 10 zip, rebooted and was greeted by stock recovery, then used that to wipe absolutely everything and reboot. After skipping through initial setup and making use wifi was working I rebooted again and this time tried booting twrp the way the usual instructions say to, this time it worked for whatever reason so once that started I used twrp to flash twrp's installer and magisk. It looks like everything is working correctly now. If you have the same issue maybe this stuff will work for you or maybe not: I don't know, and honestly I'm now brain dead lol.

Help, I can flash and boot LineageOS but not OxygenOS

Hi, as the title explains I can flash and boot into lineage os but when I try to flash a stock OxygenOS signed flashable zip from this thread (https://forum.xda-developers.com/oneplus-6/how-to/oneplus-6-mirrors-official-oxygen-os-t3792244)
and when I boot to system, the screen doesn't show a boot logo, it just goes black for a few seconds before rebooting back to twrp (also if it helps, when it goes to twrp all the files are gibberish, I have to shut off the phone and boot into it from fastboot or I can't see any files).
This all started because I misunderstood the instructions and tried to flash an ota package which then broke the system, it's working now but I'd much rather use OOS as Lineage is missing a lot of the features I'm used to on Oxygen.
I've also tried the "flash-all-partitins-fastboot" from https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665 but unfortunately that gave the same issue, it just went back to recovery and wouldn't load OOS.
If anyone has any ideas on how to get back to oxygen that'd be super helpful! I'm considering using the MSM tool but I'd rather not have to start from scratch and lose all my files.
I'm just guessing, but there might be something wrong with your TWRP, did you try re-flashing it?
mati11233 said:
I'm just guessing, but there might be something wrong with your TWRP, did you try re-flashing it?
Click to expand...
Click to collapse
I should've clarified in the post, I mean all the files are gibberish (as in not decrypted I think?) but when I
Code:
fastboot boot twrp.img
it works fine and I can see all the files.
I've probably tried flashing it 4 times through twrp but every time it just does the same thing, boot to system just shows a black screen for a few seconds then reboots to twrp.
I'd love to use blu_spark like everyone recommends but I can't find the blu_spark recovery for the op6, only their kernel.
The reason why it's gibberish is because your device is encrypted and you need to input the password in the twrp to be able to access it. Seems the twrp doesn't detect the encryption correctly so there might be something wrong with it.
Here is the bluespark twrp https://github.com/engstk/android_device_oneplus_enchilada/releases
mati11233 said:
The reason why it's gibberish is because your device is encrypted and you need to input the password in the twrp to be able to access it. Seems the twrp doesn't detect the encryption correctly so there might be something wrong with it.
Here is the bluespark twrp https://github.com/engstk/android_device_oneplus_enchilada/releases
Click to expand...
Click to collapse
I just tried with blu_spark and the same thing happens but I realised something else, twrp only doesn't work on slot A.
If I see that it didn't decrypt the files, I can set B to active, reboot to recovery, and it works perfectly.
I noticed after one of the failed boots it switched the active slot to B even though I had set it to A before flashing. So every time it doesn't show the logo or anything, it sets the active slot from A to B and reboots to recovery.
Also I just looked and from the Backup page, it shows 2.7 GB for system on slot A and 1.7GB on slot B so I'm going to try wiping both and reflashing the flashable signed zip on each then twrp.
UPDATE: Just did that and the twrp installer was giving an error saying unsupported android version so I looked and system is only 4MB after flashing that package (OnePlus6Oxgygen_22_OTA_034_all_...zip), I'm trying an older one (...OTA_026...zip) to see if that actually works.
So I tried with the older one and lineage and they both still left the system partition at 4MB and the blu_spark twrp installer isn't detecting an android version. The system image partition is at 2.6GB if that means anything.
Oh wait more update, I'm dumb and shut off the phone while taking the case off (got stuck and it was pushing the power button) and even though the twrp installer couldn't detect anything and twrp said No OS installed when trying to boot to system, lineage just started up, no problem. I am very confused I miss when there was one system partition.
How are you flashing the OS?
mati11233 said:
How are you flashing the OS?
Click to expand...
Click to collapse
I'm using twrp, blu_spark and normal, and both have the same result. They can flash lineage and it runs fine, but oxygen refuses to boot and just switches the active slot and goes to recovery instead.
I also tried the fastboot rom flashing thing from the thread I linked to in the OP and it's the same thing, just goes back to recovery and wont boot.
P.S. I'm currently copying over /sdcard to an external drive and if I can't figure out how to fix this by the time that's done, I'll just use MsmDownloadTool and start over.
And you are wiping each time before flashing it, right? If it is the case then the download tool is probably the easiest way to go about it, rather than spending days troubleshooting it.
mati11233 said:
And you are wiping each time before flashing it, right? If it is the case then the download tool is probably the easiest way to go about it, rather than spending days troubleshooting it.
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I've tried it with and without wiping and it always seems to do the same thing either way, works with LOS not with OOS. Thanks for the help! but yeah I think I'm just going to end up using the download tool once everything's over.

TWRP crashing, stuck in recovery bootloop

For the last couple years I've been following this process to retain root using the TWRP A/B Retention Script and installing Magisk to the inactive slot after OTA and everything been fine and dandy. However, after the last time I performed this process Magisk would immediately crash when I tried to launch its app. Upon investigating I noticed that the file it downloaded for flashing was suspiciously small, so I suspect it flashed a corrupted file. I had already successfully rebooted my phone several times after the OTA, so I figured it was just Magisk that got corrupted and TWRP must be fine. I recently tried to reboot into recovery and discovered that TWRP is broken too. My phone briefly flashes the TWRP logo before the screen goes black and it tries to reboot into recovery again.
I've been able to get into fastboot by simultaneously holding down the power button and both volume buttons. However, none of the options in fastboot actually get my anywhere. Choosing start, recovery mode, or power off just get me back into the TWRP bootloop, and restart bootloader obviously just keeps me in fastboot.
I assume I need to reflash TWRP and Magisk, but I'm not sure how to go about that. Can someone point me in the right direction? Thanks.
This is how I proceeded:
Downloaded the latest TWRP image (twrp-3.6.2_11-0-guacamole.img) from here: https://dl.twrp.me/guacamole/
Verified the md5sum to ensure the download wasn't corrupted.
fastboot boot twrp-3.6.2_11-0-guacamole.img
In TWRP, Advanced > Flash Current TWRP
Now I have a working recovery, but I still can't boot into my system. When I go to Reboot > System in TWRP it just boots back into recovery.
I enabled MTP in TWRP and copied off all the data I cared about, then used the "Flash Factory Images" option in the TOOL ALL IN ONE to flash 9.5.13-GM21AA-OnePlus7ProOxygen_21.O.16_OTA_016_all_1908281716_b2bb5-FASTBOOT.zip. I tried it without checking the box to erase everything, hoping I could keep my data, but that didn't work. With that box checked though I was able to boot again, but I cannot turn on WiFi for some reason. I'm hoping the OTA will fix that issue. Does anyone know how to get WiFi working again or why it may have stopped working?
altayh said:
I cannot turn on WiFi for some reason. I'm hoping the OTA will fix that issue.
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Click to collapse
Fortunately enough the first OTA did indeed solve the WiFi issue. Now I've applied all of the OTAs and finally have my phone in a proper working state again.

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