Chosen Solution
So I work in a computer repair service and a lady showed up with the tablet part of the ASUS Transformer Pad TF103C (she bought it without the keyboard, already used). The problem is that she somehow entered UEFI (and she has no idea how), and now you can’t exit. The touch screen doesn’t work, it is not registering any keyboard or mouse, possibly because you have to enable it which we cannot do because you need to move around in the UEFI setup for that. Neither my mentor nor me have ever seen a similar problem and we didn’t make any progress in a few days already. I will give you a list that we know doesn’t work: the os won’t bootyou can’t just plug in a mouse or a keyboardit doesn’t register touchyou can’t move inside the UEFI at all (except moving up and down on the same section with the Volume + and - buttons)you can’t click enter with any sort of button combination even if you shouldcomputers don’t recognize the tabletyou can’t factory resetyou can’t hard resetyou can’t boot an OS from an SD cardyou can’t even turn the screen on as you please, it is completely black until you connect a charger, and even then the screen periodically turns on and offAny sort of help is greatly appreciated.
It should have at least the power and volume buttons. Try holding power and volume down for 30 seconds and see if it shuts the tablet down.
