In 2016 (after almost 5 years of happily using MacBooks), I decided to switch all our computers at home to MacBook. I bought 5 brand new MacBooks for my whole family. Today, 5 years later, all the 5 MacBooks have the exact same problem. The screens started to flicker like 2 years ago and Apple had no solution. Now the screen goes black and multiple colors when I open it more than 25% approximately. Apple doesn’t believe it’s a bug in this model and wants to charge me a **** lots of money to fix them. I’m moving back to MS.
Hi Alaa20921
Welcome to the Apple community where some of us do our best to help each other.
Wondering if your Macs still have enough storage space / memory (at least 50Gb) to operate smoothly.
See used and available storage space on your Mac:
https://support.apple.com/en-us/HT206996
OR
Sometimes Third party (non-Apple) software causes difficulties, or becomes incompatible, with the Mac OS.
AND
Apple has a support article: that may be helpful.
If your Mac starts up to a blank screen:
https://support.apple.com/en-au/HT210905
Regards :)