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screen problem

i have a colour screen problem. screen is waving. what can i do?

MacBook Air 13", macOS 10.15

Posted on Dec 30, 2019 11:24 AM

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Question marked as Best reply

Posted on Dec 30, 2019 12:35 PM

There are a few 'resets' that may help or at least provide a break

for troubleshooting (or perhaps comic relief?) One is NVRAM.


Try first: Four keys held on restart; release keys after Mac chime 3x.

"Shut down your Mac, then turn it on and immediately press and

hold these four keys together: Option, Command, P, and R."


..another is SMC. Has other reset details in article.


And there may be hardware issue behind this, not sure if the

built-in diagnostic could help. You may need to seek genius

staff by appointment at Apple store or service provider.



1 reply
Question marked as Best reply

Dec 30, 2019 12:35 PM in response to ravza16

There are a few 'resets' that may help or at least provide a break

for troubleshooting (or perhaps comic relief?) One is NVRAM.


Try first: Four keys held on restart; release keys after Mac chime 3x.

"Shut down your Mac, then turn it on and immediately press and

hold these four keys together: Option, Command, P, and R."


..another is SMC. Has other reset details in article.


And there may be hardware issue behind this, not sure if the

built-in diagnostic could help. You may need to seek genius

staff by appointment at Apple store or service provider.



screen problem

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