Macbook A2338 820-02020 Cycling

[Instafixx]

Hello,
Have a Macbook A2338 . If i plug in the amp meter, it reboots in 2-3 seconds. The voltage jumps from 5V to 20V and the it reboots. (On both USB C Ports).

The board is completely clean. No Dust, No Corrosion.

Diode Mode Readings (Red to Ground)
PP3v3_S2 is .260
PP1v25_S2 is .240

 

[2informaticos]

You should check diode mode readings in more power rails; compare with good board.
Remove F5200 and check if C5250 voltage is stable.

 

[Instafixx]

The machine randomly switched on once. Then it shut down instantly after 2-3 mins.
Removed the Fuse. Getting a stable 12.3V at C5250.

 

[2informaticos]

Try DFU revive, if possible.
Go for restore, if no important data.

 

[Instafixx]

Should i put back the fuse ?

 

[2informaticos]

Of course, how can you test the board without fuse?

 

[Instafixx]

Getting Error 4042 with DFU Revive. Should i even try for a restore ?

 

[2informaticos]

If no important data on SSD, give it a try.

 

[Instafixx]

I got error 4042 with the revive but it switched on and started working. It worked for a day but again its off now. The client needs data. Is there any other option or should i return it.

 

[2informaticos]

Hope to get it work again and then save data.

Just in case, try to start in target disk mode.

 

[Instafixx]

Did the Restore. Process Completed Successfully. Let me check it for a couple of days now.

 

[Instafixx]

Hi, The device is still crashing even after a successful restore. It was fin yesterday night. Today morning it switched on in recovery mode. I reloaded the MacOS. Worked for sometime. I checked after sometime to find that its not getting on again.

 

[2informaticos]

No liquid sign, but what the client said about how the fault came on.

Next time you get it starting, test in diagnostic mode.

 

[Instafixx]

Client said that the fault came on suddenly. Yes - no liquid sign.
I can again try Restore and it might come on again.
I will get back.

 

[Instafixx]

This morning it was on and recovery again asking to reload the OS. I did a restart and it booted into the MacOS (very weird).
Performed Diagnostics and i got error PPP020 - "There may be an issue with the Power Port".

Maybe because the charger wasnt connected.

What to do now ?

 

[2informaticos]

Yeah, the error was caused by missing charger.

Check if the machine is still covered by Apple warranty.

 

[Instafixx]

Not covered by apple warranty

 

[2informaticos]

Randome failures are nightmares...