Check the other diodes too.
Also note, 5v on 5v pad when booted, not blade on. Not even SD in slot, so only sound is talkie “low battery”
All 3 diodes same 4.8 on the inside.
Pad sides:
D61 = batt voltage
D63 = 5.1v (expected)
D62 = nothing.
Ok, so this board must have a short between the input and output of the 3.3v regulator.
I’m surprised it hasn’t burned up yet.
The 3.3v input is used as a reference when calculating the battery voltage, so if the 3.3v input is high, then the battery voltage looks low.
I’ll swap U60 and see what happens. Thanks.
Nice job. A little too much solder, but if it works it works.
Thanks. So small!
Yes, that’s an after patch. Apparently I didn’t have enough paste on the pad when reflowing the new chip on initially because the board didn’t work at all. Had to dab a bit with a pin just outside the contacts and let it get sucked up like that. I cleaned the flux up.
Just wanted to say thank you to everyone for helping get this fixed. I just installed this board and it is operating flawlessly! Thanks again