Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

ShawaCat

macrumors newbie
Original poster
Jan 9, 2024
6
0
Greetings to all. We have a 2015 MBP A1502.
When turned on with the button, the cooler spins at low speed for about 2 seconds, and then spins up to full speed. The image is not displayed either on the display (it is not known whether the display is working) or on an external monitor via HDMI. There is also no power gong. At the same time, the processor heats up.
I checked all the lines, there seemed to be no short circuit anywhere, the resistance of the processor power phases to ground was 10.3 Ohms.
Motherboard model: 820-4924-A
I think I need to flash the EFI. What do you recommend doing?
 

Bigwaff

Contributor
Sep 20, 2013
2,715
1,819
This is w/ or w/out the AC adapter plugged in? Try these techniques first..
 

Tuck_

macrumors member
Sep 25, 2023
61
227
Something similar happened to my mom's 2019 unit and it was a fried SSD. Hope that's not the case for you.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.