Apple MacBook Pro / Water Damage / 20V 1.4a /

[zeydullak]

Hello,

We have an Apple Mac Book Pro with an 820-01700-A board that had water damage on U9580 and C9580, we replaced U9580 and removed C9580 and the board now uses 20v and 1.4a and then loops back down to 0a 20v.

Checking under our Thermal Camera the SSD Chips heat up to around 70c~80c in around 10-15 seconds, what is the probability of the chips being shorted?

Would the Board use 20v if the chips are shorted?

Regards,
Zeydulla.

 

[2informaticos]

The MLB can switch to 20V before enabling SSD voltages; even with short there.

 

[zeydullak]

How do we make sure that the SSD chips are shorted?
Please advise how we should continue.

 

[2informaticos]

NANDs shouldn't go so hot as you mentioned.
Lift L9580/1 and check diode mode to ground on SSD side.
Compare with good board, or other MLB side.

 

[zeydullak]

Patient Board -> .0010

Working Donor -> .3857

Does this mean there is likely a short?

 

[2informaticos]

Almost short; dead NANDs...

A2141 NAND SSD Chip MacBook Pro 16inch T2 mode 820-02037-A

A2141 NAND SSD Chip MacBook Pro 16inch T2 mode

www.masterliuonline.com

You can buy with confidence there.
Watch the videos first.