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Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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Screen glitches, computer freezes/reboots when I touch bottom case

I've replaced the logic board, which did fix the problem with the ram coming unseated frequently. However, I am still having this problem where touching the left front (closest to me if the computer is open & facing me) quadrant of the lower case causes the screen glitch with barcodes then the system freezes & either auto-reboots or must be manually turned off & restarted.

Any thoughts? I was considering trying to construct a strong, secondary bottom case that attaches at the corners & gives a 1/2" gap to avoid touching that spot, but if someone knows what's causing this, I would much rather fix the problem!

Thanks in advance for your help!

Answered! View the answer I have this problem too

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I'm suspecting you have a pinched cable here! Review this IFIXIT guide: MacBook Pro 13" Unibody Mid 2012 Logic Board Replacement Jump down to Step17 note the location of the display cable as well as the parts. When you press on the case you are pinching it!

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2 Comments:

Thanks for your suggestion. The glitch/reboot happens when I push on the front left (if the comp is open & facing me) of the bottom casing, not the top right where the display cable. Just to be sure, I did have a look at it. The display cable does not appear to be pinched.

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Think this through... When is Left Right? Hint the term 'Stage Right' is Left side of the stage from the audience perspective! This is when the actor is looking at the audience.

The view point from the bottom and the view point from the keyboard side are reversed! So the display cable is on the left side when viewing the system from the keyboard side. And yes you have a pinched or damaged LVDS cable.

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Jennessee Rosenberg will be eternally grateful.
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