“M, k and o aren’t working: part of my screen isn’t sensitive to touch. Even outside the keyboard. I reset it, cleaned it, did any upgrades and still nothing. Please help”
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Keys Not Working an iPhone:
A. Close All Apps:
These apps may be open making this occur. So, save what need be, and then close all apps. Hold you finger down as you swipe up form the bottom-left corner of your screen. Then, close all of these open apps, by sweeping up quickly for all apps.
B. Perform a Force Restart:
Try Force Restarting your iPhone. Save any information that need be. Then perform the restart. See if you can then perform this. Go Here: Force Restart iPhone - Apple Support