Switch to the voltage per cell monitor go see if it recognizes all the cell of the battery.

If it sees all cell and all at or under 4.20 but above 3.20

Could be bad wires or bad battery.

Personally I don't mess with batteries, if it dong work send it back, AtomiKRC just replaced a 3s Venom pack on warranty. I didn't even send them the battery, just needed proof of purchase and a pic of the battery submerged in salt water to discharge it.