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A1496 MacBook
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Have you tried resetting the SMC?
support.apple.com
Reset the SMC of your Mac - Apple Support
The SMC is responsible for managing power on your Mac. Resetting it can resolve certain uncommon issues related to power or thermal management.
Was there any liquid spills on the computer or anything happened to the laptop before this problem occurred? Without knowing the exact condition of the computer before problems occurred it is hard to troubleshoot it.
You can try reseating the display data cable connector.
Remove the bottom cover. Find the display connector.
It looks like this:
There's a little spring clip with a plastic tab. Pull that to unlock the connector, then slide the connector out of its socket. (Don't' pull up on the connector), then re-insert. Push the clip back in place. Look around that area for evidence of liquid, or obvious corrosion (often a green-ish or blue powder near any of the chips) The reseat might help, or may do nothing at all, but worth a quick try.
Remove the bottom cover. Find the display connector.
It looks like this:
There's a little spring clip with a plastic tab. Pull that to unlock the connector, then slide the connector out of its socket. (Don't' pull up on the connector), then re-insert. Push the clip back in place. Look around that area for evidence of liquid, or obvious corrosion (often a green-ish or blue powder near any of the chips) The reseat might help, or may do nothing at all, but worth a quick try.
Before doing this disconnect your battery first.You can try reseating the display data cable connector.
Remove the bottom cover. Find the display connector.
It looks like this:
There's a little spring clip with a plastic tab. Pull that to unlock the connector, then slide the connector out of its socket. (Don't' pull up on the connector), then re-insert. Push the clip back in place. Look around that area for evidence of liquid, or obvious corrosion (often a green-ish or blue powder near any of the chips) The reseat might help, or may do nothing at all, but worth a quick try.
The keyboard backlight is flashing along with the display.
My guess is the logic board will need to be replaced.
My guess is the logic board will need to be replaced.