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iMac constantly inputting text, even with keyboard unplugged etc

197 Views 5 Replies Latest reply: Sep 4, 2013 4:59 AM by Mike Sombrio RSS
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Sep 2, 2013 2:25 AM

Hi guys,

Bought a second hand iMac (2012/21.5 Lion) and it's constantly inputting text. If I bring up a text program it usually looks like this '/////////////}}}]]]]   pPPPPPPPPPPPP' completely random characters plus the volume is going up and down and the return key is being pressed. I've unplugged the mouse and keyboard and it is still doing it. Last night I decided to format the harddrive and reinstall OSX and it is still happening. I've reset the PRAM and tried everything I can think of but have run out of ideas,


Anyone had any experience with this, did you find a solution?


Many thanks.



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