A2251 Not Charging / missing component on board

judahorion

New member
Hey everyone,

A customer of mine brought me a Macbook Pro that is failing to charge via any of the USB-C ports. The battery still had a little juice in it so I can confirm that the computer itself works aside from the USB-C ports not recognizing anything plugged in. Upon taking off the back, I noticed a missing component on the board near the right fan, but I have no idea what this component should be or if it would affect charging. I've attached photos of the board. Can anyone tell me what should be here and if it affects charging? If not, what components should I be checking?
Screenshot 2024-06-05 134930.png
IMG_0104.jpg
IMG_0105.jpg
 

2informaticos

Administrator
Staff member
First of all, welcome to the forum!

There was just a ground contact for back cover; nothing important.
Jut be sure no other traces than ground broken in that area.

Check diode mode to ground on all CD3217 LDOs.
Each one has 2 LDOs; C3105/08, etc...
 
Top