seanmb

No worries, I am pretty new to soldering. I'm using rosin core silver solder. I, myself, was figuring that the issue was that i might have solder from one of the jst pin holes touching the trace of another pin hole. I will try resoldering it.

I just hard rebooted the device and had it update firmware. When I after i plugged the battery back, i checked device monitor. It displayed cell 1 as zero volts and cell 2 as 5.something volts and cell 3 as the normal 4.1 or so volts. When i checked the same battery with another device, each cell had around 4.1 volts.

I made my friend a dna200 as a wedding gift. He used it for a few months and then reported that passthrough charging no longer worked. Later it wouldnt charge at all. I switched the battery and it would only turn on when the jst connector (balance leads) were not connected. To be more specific it flashes on and turns off immediately when the jst connector is plugged in. I resoldered the jst head pins to the board but it had no effect. The fuse also appears fine, i have not checked it though. Any suggestions on where to go now? Thanks (board pictures included)