HT203254: MacBook Pro: Distorted video or no video issues
Learn about MacBook Pro: Distorted video or no video issues
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Helpful answers
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Nov 22, 2012 8:19 AM in response to lilfinn44by Linc Davis,Make a "Genius" appointment at an Apple Store to have the machine tested.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to bare metal from any of them.) Don’t erase the recovery partition, if present.
*An SSD doesn't need to be zeroed.