It doesn't power on into DFU either, but I'm not sure if it's because the laptop is actually having power issues, or if the host computer I'm using isn't on the same OS. I have no idea what version OS is on the dead one, but the host is on the latest version OS.

So the only issue I see there is that when I get the 20v, there isn't any current being pulled. I'll still pull the connectors just to be safe. I also forgot to mention when I checked the battery voltage (it's been sitting for over a year) it's locked at .48v regardless of how long I leave it on the charger.

Even with all of the SSD and 5v power, as well as the AWAKE's dead you think just cleaning the ports will do the trick? I checked the ports when I disassembled and they're very clean as it sits.

Hey all,

Been lurking for a while to find a solution to my dead A1990 (board # 820-01326-05, I can't find a bv for that one so I've been using 820-01041 for reference) but have come up empty handed. I haven't really done any diagnostics on electronics like this though so I'm sure I've probably missed something. I've soldered and diagnosed keyboards and cars but this is definitely new to me.

My overview thus far:

After browsing the web one night, I closed the lid while it was on the charger, left it on my desk overnight and it was dead in the morning. No response...