There is a 1x2 pin-header that is connected to the SAM V71 chip erase pin, PB12, and 3V3 marked ERASE. This header can be used to chip erase the SAM V71 by placing jumper on the header and toggle power to the board. After the power is toggled the jumper should be removed. Using the chip erase jumper may be the only way to erase a chip with the security bit set, and applications that immediately sets invalid clock options or goes into deep sleep without any wake-up sources enabled.