

Cause of Fried Board - 4th Gen Monochrome
Modded a 4th gen monochrome about a year ago with battery and as storage mods. Been running smoothly until the device went completely unresponsive this afternoon. I had left it plugged into the only charger I had at my desk and went to lunch… came back to a blank screen and a slight smoky smell.
Cracked it open this evening to find what I imagine must be the culprit - fried chip and char right behind the battery connector on the logic board. Tested the battery with a multimeter to confirm it’s still good and voltage is appropriate. Feeling kind of lucky that damage wasn’t more extensive based on how strong the burning smell was inside the case upon opening.
I suspect my problem was the charger / cable combination used… Before I go ordering a replacement logic board, can anyone say whether this could be caused by a third-party charging cable plugged into a “smart” usb outlet which wasn’t able to correctly regulate the output voltage down to 5v? Or could this have been a short caused by the exposed metal from the click wheel on the faceplate?