[Help] OP7Pro only boots to Bootloader, not detected by Fastboot

Soumy1234

Senior Member
Aug 19, 2017
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As the title says, my OnePlus 7 Pro now only boots to the Bootloader and it isn't detected by Fastboot on my PC. I recently extracted a boot.img from the latest (10.3.8) OOS firmware, patched it with magisk, then flashed in TWRP and booted to system. I realized I forgot to reinstall TWRP so I flashed its installer in Magisk Manager then directly installed Magisk. This may be the reason why I can't boot anymore... I most likely can use EDL and MSM to restore (hadn't tried it yet), but I rather save that as a last resort since I really don't want to wipe my device. I've already tried installing a bunch of adb and oem drivers to no avail. Is there a way to use EDL to boot a twrp.img, perhaps?
 

Soumy1234

Senior Member
Aug 19, 2017
575
157
43
Well turns out it was a driver issue. Installed proper drivers and got fastboot to work again. Booted TWRP and dirty flashed stock firmware, TWRP and Magisk.
 
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