Just finished installing a Fallen v2 yesterday and I am getting a false “low battery” warning at random. It usually triggers right away (within 30 sec of powering up).
Full disclosure: This board was purchased second hand and prior owner did attempt install. There was some minimal soldering done and visually board looks fine. Just seeing if anyone else has ideas what to test before I give up and get another board
Below is what I have tried so far:
Three different batteries (all 4.1v on multimeter)
Different SD card
Uploaded config again, doubled checked correct Proffie v2 selected
Metered battery +/- pads on the board and reads 4.1v when battery is plugged in
Continuity test from Batt + pad to all other pads on board. No shorts found
Thoroughly inspected and cleaned all joints and wires
Any guidance would be appreciated.