Than probably hardware issue
Now wipe everything in stock recevery
Oh dear , never realized there is so much retards ...go phishing or something...
this is for code name cheeseburger (OP5) ,dumpling is (OP5T) ...
You have to format / wipe data in recovery and it will be all good
I believe only from OnePlus and they do not sell it ,so your best option is to send it for repair to OnePlus .
And released at same time and everyone knew about it
booting into TWRP takes some time,longer...
Not available in stable build ,do some research before asking something that has been answered 100 times already ;)
it's on its way :)
Lately, smartphones are smarter than their owners....that is all I can say.
After flashing OB9 and before booting into OS ,flash TWRP and boot into it ,format data and boot ,only way I have found successful
I have used it caseless and now I have 3 corners dented and small crack on outer glass :(((