Help!! OnePlus 11 running latest LineageOS hard-bricked itself out of nowhere
I was just using the calculator on my OnePlus 11 running the latest Lineage. It stopped responding to touch input for a few seconds and then the screen turned off. It wouldn't restart. I connected it to my PC and it's in EDL mode ("Qualcomm HS-USB QDLoader 9008"). Because OnePlus has some kind of security lock on EDL mode, as far as I know it's completely bricked unless I send it to them, and people's experiences with that online have been...mixed.
I have no idea if this is a software glitch (whether in Lineage or not) or a hardware failure. The device was almost new and had less than 40 battery cycles, but it's long out of warranty. (bought on eBay, I think it just sat for a while)
If any of my undertstandings about EDL mode above are incorrect, please let me know! And if anyone has any ideas about how to recover this or what could have caused this, let me know... Even if I get it fixed, not sure I can trust this device anymore.