Macbook Pro Late 2013 Turns off all the time

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Level 1

4 points

Macbook Pro Late 2013 Turns off all the time

I Have this MBP Late 2013: https://everymac.com/systems/apple/macbook_pro/specs/macbook-pro-core-i5-2.4-13-late-2013-retina-display-specs.html

For some time now my MBP started restarting by itself since i upgraded to Big Sur; i saw online that it could be an issue with the Thunderbolt port and what not, so i decided to Downgrade to Mojave. The thing is, it just got worse; In Big Sur i could at least use it for some time before it crashed and turned off, now it just turns off in everything:

Normal Start: It makes the sound that signals it's turning on, shows Apple logo, halfway through the loading part it crashes.
Safe Mode: Turns on and crashes after logging into my new account.
Recovery mode: Loads and then crashes 5-10 seconds after that.
Single User Mode: Loads and crashes after 2-3 Seconds after that.
Booting from a USB: Same as normal start (bad).

Diagnostics Utility works correctly, but shows that there is "no problem" with the Hardware on the mac.

IMPORTANT: The thing is when i Downgraded to Mojave, the MBP worked fine for 1-2 Hours before this started happening, I had made a Time Machine Backup in Big Sur to don't lose ALL my info, and i started to recover the info manually (i didn't knew you couldn't get to work Time Machines from Big Sur working to Mojave), and halfway through doing that it just turned off and started doing this. I'm right now in LATAM not even close to a Store that i could take the MBP to (so that's out of the question).

PD: There is nothing connected to the MBP when i turn it on, Resetting SMC and PRAM or whatever does nothing to fix the problem, Internet Recovery (starts and works fine i think), but for some reason after the world logo disappears , it just turns off like all the other methods.

MacBook Pro

Posted on Sep 19, 2021 4:50 AM

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Answer 1

BDAqua

Level 10

245,201 points

Sep 19, 2021 10:18 AM in response to Axl309

Have you done a PRAM reset, CMD+Option+p+r...

http://support.apple.com/kb/HT1379

In fact, do 3 in a row, takes a bit of time.

Intel-based Macs: Resetting the System Management Controller (SMC)...

http://support.apple.com/kb/HT3964

Have you blown the dust out of the intakes lately?

What temperatures does this App report? Especially the GPU.

This App can be used to speed up the fans, all my iMacs would be dead without it.

Never ever ever drop fan speeds below the speed that the Mac itself is calling for.

MacFansControl…

https://www.crystalidea.com/macs-fan-control

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Answer 2

Axl309 Author

Level 1

4 points

Sep 20, 2021 6:51 AM in response to BDAqua

Had already done that multiple times but tried again anyway; After resetting SMC did 3 PRAM resets in a row, MBP keeps having the same issue as explained above (turns off halfway through the logo loading screen).
I can't download any app to the mac to do anything with the fans because it can't even turn all the way on; Diagnostics utility turned the fans all the way up for a couple seconds for testing purposes, and they seemed to be working fine (if that was the question you had).

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Answer 3

Axl309 Author

Level 1

4 points

Sep 20, 2021 9:19 AM in response to BDAqua

Booting from usb just does exactly the same as normal boot, MBP dies after loading half the bar down the Apple logo, i think either my CPU has completely boomed or something as this video: https://www.youtube.com/watch?v=_QC_KcnPQmE

Don't really know what to do other than [Change CPU (and/or the chips shown in the video)/sell for parts and buy a new one], which is quite sad as this MBP was working before Big Sur update.