Forum Discussion
How to flash back to OS11 on T-Mobile OnePlus 9 Pro (or any OP phone).
I had updated to OS12 on my OP9 Pro and I hated it. There are now too many useless features, not to mention a few of my most used features disappeared (such as the seconds on my clock in the notifica...
Thank you for posting! This is what I needed to reset my OnePlus 9 Pro - Android 12 broke a lot of things, most importantly for me was Google Voice calling…
1 step I ran into that needed to be done, once I got my phone in EDL mode, Windows didn't have the correct drivers. It appears as QHUSB_BULK and needed to be: QDLOADER 9008
I followed instructions in the FAQ section on this page to update my Windows drivers to correctly recognize the device. Then the remaining steps were easy.
