My kindle paperwhite has been playing up and the touchscreen doesnt work on all areas. The worst is the keyboard as it only recognises some of the letters. I tried soft reset several times and as that didn't work tried a factory reset. The issue now is it still doesn't work as i am unable to enter a wifi password or even re-register it as the keyboard still doesn't work for all the letters or numbers. How do I get the keyboard to work properly?