3 
1 Blew the pads off L4803 after reinserting the trackpad cable
Hi,
I forgot to press the battery disconnect button prior to swapping the trackpad cable in a 2016 A1534. I noticed a little spark/sizzle/smoke come from the logic board sizzle as I was closing up the Macbook. Needless to say the keyboard and trackpad are no longer working. I took a close look at the logic board under a microscope and I found nothing but a nice big solder ball sitting between the pads of L4803 .
I’m not too familiar with board level repair but I’ve been reading a bit about it in light of this disaster and I figure since I have access to all of the tools required to attempt repairing it that I could give it a shot. I don’t see any traces leading to L4803, does anyone know where I would solder a jumper wire?
thanks
pics after removing solder blobs
Esta é uma boa pergunta?
2,3 mil 
3 comentários
@berniemacbook post a good picture of your whole board. First thing you need to do is to clean the board so we can actually see more than the blob of solder. Where on the board is your first image from (does not look like L4803)
por oldturkey03
@geekittogether 820-00045-A is for ar Apple MacBook 12" A1534 2015 Retina. @berniemacbook yes but I must see your board from both sides and see your solder pads. Any idea about the blob in your first picture?
One line goes to the trackpad Zif connector and the other one can be soldered to a few components following the inductor
por oldturkey03
L4804 & L4802 also blew up
L4804 lost both pads - there's a tiny bit of solder still connected in one of the pads
L4802 had one pad that was lifted- I used some conductive wire glue to secure it back onto the board and have replaced it. I'll add a few more pictures.
por BernieMacbook