My iPhone X had a fault this evening (second time I've had an iPhone X die on me). The screen went bright white all of a sudden and then turned black, and it won't come back on.
The touchscreen itself appears to still be working, as I can click roughly where the lock buttons would be and can feel haptic feedback, but it's the display itself that is completely black.
I haven't backed up the iPhone in a while and need to back it up before I send it in for repairs, but I can't access it from iTunes while it is locked.
How can I unlock the screen without being able to see it? Any suggestions would be greatly appreciated.