If they’re the manufacturer, they could upload and boot via fastboot a signed image that allows all tests to be done, all automatically
When I broke the screen of my Xiaomi mix 3, it was completely black, I sent it back to repair and they had no problem at all repairing it even if I didn’t unlock it before sending it. (Maybe it’s because Xiaomi has hw tests shortcuts in the bootloader?)
Theoretically, isn’t maintenance mode completely useless?
If they’re the manufacturer, they could upload and boot via fastboot a signed image that allows all tests to be done, all automatically
When I broke the screen of my Xiaomi mix 3, it was completely black, I sent it back to repair and they had no problem at all repairing it even if I didn’t unlock it before sending it. (Maybe it’s because Xiaomi has hw tests shortcuts in the bootloader?)
Sure, the manufacturer could, but they might not provide those kinds of images to their official repair centers, certainly not third-party ones.