Macbook Pro A2289 - 820-01987 - No video output

[anhbanxoi]

Hello,
I have this MacBook with a pretty clean motherboard battery that has only 4 cycle counts but no video output on screen, even with external screen.
I tried to restore with Apple Configurator and it can finish this process sucessfully but still no video output (usually during restore with dfu mode a apple logo will appear)

I also followed T2 power sequence and seem like all power are up and running ( I got this signal ALL_SYS_PWRGD)

CPU get warm, fan spin, touchpad clicking, no chime sound, current draw around 0.6A without battery.

Do you guys have any suggestions in this case?

Thank you

[ugamazing]

Re: Macbook Pro A2289 - 820-01987 - No video output

Have you checked RTG on all CPU/eGPU coils?

[anhbanxoi]

Re: Macbook Pro A2289 - 820-01987 - No video output

Have you checked RTG on all CPU/eGPU coils?

I just reflow the RAM and it's now working fine.

Thank you for the information from your topic.

[ugamazing]

Re: Macbook Pro A2289 - 820-01987 - No video output

Way to go! Yes I suspected a possible RAM issue on some of these, and will try to reflow some later to see.