[OnePlus 6 & 6T Cross Device Development] thugslug:
Strange repeatable bootloop

I have an annoying problem with a bootloop.

If I reboot or turn off, I get a bootloop around that silly orange and white text warning screen.

Turning the phone off, and back on again and it boots up normally. Then I dread the next time I have to restart....

Actually, the phone might turn off itself after it bootloops for a minute or two. The power button doesn't always seem to work, but eventually the phone goes off and when restarted it boots ok.

This morning my phone was completely stock 5.1.8.

Then I downloaded all the new versions of everything that came out this morning and updated exactly as per the instruction (I think or rather hope).

I prepared by getting dev options / advanced reboot / allow oem unlocking set.

I attached to laptop and used adb/fastboot to unlock bootloader (using Kali Linux) -> went fine.

Flashed TWRP 3.2.2-0 to phone using fastboot, then the second one within TWRP before rebooting -> all went fine.

Flashed v16.5 of the Magisk installer -> also went fine.

I rebooted then to check Magisk seemed to install ok, and check all the dev options again. All seemed well.

I went back into TWRP and flashed the Renovate ICE 3.3 ROM module -> all seemed fine. (NB - in Magisk, the info about the module loaded still says its 3.2 - someone forgot to update that text - just fyi)

Rebooted and left the phone to settle a while, then rebooted again. All good so far. Build number in 'about phone' said 'Renovate ICE OP6 3.3'

Then I went back into TWRP and flashed Cleanslate Kernel v 1.7.19 (latest). Seemed to go fine, but.....

When I tried to install the 2 companion apps from the play store (premium bought version), the download said 'pending' for no apparent reason.

The companion app seemed to come down behind the scenes, and was there, but config app still said pending.

At this point I restarted again, and got the first bootloop issue, but after turning off and restarting, it started fine, and the config app was there..

I opened the config app and started using it, but it stopped working and I submitted a crash report. After the report, it was installed, and seemed to be working fine.

I configured things in the app, saved it, and set both apps to locked in the switcher as specified in the thread.

All seemed to be going well and I was happy as Larry, but when I restarted again the bootloop happened again. I got out of it as described.

To test how repeatable it was, I turned the phone off, and bootloop happened again as described, and was fixed by turning off and restarted normally.

So it's repeatable.

There is another issue:

There are about 16 apps waiting to be updated in the play store. However they all say download pending and nothing happens.

Only the first two I tried to update seemed to download, but with difficulty (the Cleanslate companion apps).

This is the case whether I'm on mobile data or wifi. I've changed the update settings between update never, on wifi only, or anytime. Makes no difference.

I can download anything else, use speedtest.net, watch Youtube. All work fine, but there's something broken in playstore. The play store version says its up to date (10.6.08).

Sorry, the post is long so you have the full picture. I've read and searched the thread. The other bootloop issues in the thread do not seem the same as mine..

Over to you guys - what's my way out of this? I'm tempted to flash the stock boot.img (as mentioned elsewhere as a fix). Not sure where to get it yet, and didn't want to try a solution before I asked you devs what to do here.