I rooted my Lenovo Vibe K5 Plus, installed Magisk,Arrow OS ver 10, opengapps pico and it was all going very well until I applied the recent update of Arrow OS with 5 Mar 2021 patch.
I downloaded the zip, booted to TWRP, selected Install and pointed to the ZIP file. Then I booted to system without clearing Dalvik/Cache. Then the problems started.
I would download files from the internet and brave would say download failed while the file would be present. However checksums wouldn't match when I checked in my pc. The default Files app wouldn't be able to delete files. However the rest of the system was fully functional, network stuff, bluetooth browsing everything worked.
Another strange issue was that no matter what system sounds wouldn't just work. Alarms, timers included. However going to youtube.com on brave would play audio just fine. My music app also worked perfectly. All notification sounds were set at maximum.
I first noticed this issue when trying to use Vanced Youtube which would crash whenever I tried to play a video.
Then today, I booted to TWRP, wiped all data and formatted storage. I then flashed ArrowOS latest version again, wiped Dalvik and booted to system, it started up normally and worked fine. So I decided to install Magisk(obviously) and booted into TWRP. When I tried it to install it though, TWRP crashed(I think) and booted to system. I tried it a few times and it happened every time. No errors were shown.
Thinking it was an issue with ArrowOS, I booted into recovery and selected wipe but TWRP again crashed and booted to system. So I decided to repair the filesystems. I booted into TWRP, selected Wipe then Advanced Wipe. I selected System and then Repair filesystem. I got an error.
/sbin/e2fsck -fp /dev/block/mmcblk0p23 process ended with error: 1 Unable to repair System
But when I tried with the Data partition, it worked fine. I then rebooted to recovery and tried to repair the system partition again and this time I got no error(strange since I did literally nothing different)
So anyways, I decided that ArrowOS was the culprit and I should switch to a different ROM, so I downloaded AOSP Extended, formatted everything on my phone from TWRP.
Then I installed Magisk (on a previous phone this had helped a lot, ie: installing Magisk before installing LineageOS, the custom ROM). It completed properly. I then rebooted to recovery, transferred the ZIP of AEX(hash verified btw) and installed it. It completed without any errors. I wiped Dalvik and booted to system.
The Magisk Manager is not present in the app menu.
I need Gapps so I transferred the OpenGapps zip to my phone from my PC(pico for android 10 ) and tried to install it from TWRP. TWRP crashed and booted into system.
OpenGapps are not present, magisk manager is not present and TWRP won't install anything, it will just crash and reboot to system.
I want to know if there are any software fixes I could try to apply before assuming that it is indeed a corrupted storage, the phone is about 5 years old at this point. I think that's what it may be but I want to be sure and would appreciate your views and suggestions.
What I have found scourging online -
This thread which I couldn't make any sense of.
This thread. I tried the fix, it gave no error but it isn't working for me either.
This thread but my device is not covered.
Any and all help is appreciated since this in my only working phone.