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No USB activity. Light on pen drive is solid. I should pull the board to check the other side. I think someone else has been inside of it cause the CPU fan is unplugged.

So I have on the bench and 820-2567 that chimes, and has backlight but no image. I plugged in an external monitor but nothing came up.

So I dug out the melted inductor, soldered wires to a new one next to the missing pads and solder masked it to the board we now have a working camera. This one is solved. Thanks!

I assume you were wanting to see if the camera itself cause L4010 to melt.

.277 w/o camera, .348 with.

Oh dear god I think I found the Issue. L4010 went NUCLEAR. Why would that happen?

Working on an 820-3662 with no camera. Tried known good camera/LCD and still a no go. Did some diode measuring and I I get .400 on pins 2&3 but reading short on pin 4.

This one is solved. It was the battery data cable.

nevermind, saw that you did.

I know this may seem obvious, but did you check the fuse?

I pulled the little ribbon cable and tested the SCL and SDA pins and the cable doesn't have continuity from one end to the other on the SDA Pin. So I'm submitting to the theory that since I am getting proper charging current, the board is trying to talk to the battery but since the SDA pin in...

I did an SMC reset and now the battery has a "X"

So I have tonight an 820-00840 that the customer replaced the battery themselves and they say now it doesn't charge. When I plug it into my USB-C meter it is pulling 700mA @ 19.7V which seems to me like it is charging but the percentage stays at zero.

After I let it sit for a few minutes I plugged in the MS and hit the power button. The fan jerked a little then started to spin but after the chime it shut back off. I'm starting to think it is possessed.... No signs of liquid damage either unfortunately.

Oh and an important second teaser, when it shuts off in the chassis I cannot get it to turn back on. Not even with using "power on pads". But on the bench I can shut it off, turn it right back on over and over so I am thinking it has something to do with the chassis, or TPAD because although I...

At the moment I am working on an 820-2533 that has a strange power issue. On the the bench I am able to power the board and leave it running for a good while, but when I put it in the chassis I can get it to turn on, log in and look around for about 30 second before it just turns off, like as if...

I'm still interested

I soldered 4mm banana jacks to mine.

The "crack" I heard was the new U7100 blowing because I didn't realize at the time R7121/22 were blown as well. I put another U7100 on and the board started working but when I checked pins 27 & 28 I founf 17.7K so I must have blown the new resistors when I replaced them after the new U7100 blew...

Yeah, board is up and running, battery charged up, It is working! I think the problem was when I started, U7100 was bad as well as resistors. I only changed U7100 to a new one. I should have replaced U7100 and the resistors at the same time. My mistake was replacing only U7100 or resistors. I...