https://devzone.nordicsemi.com/f/nordic-q-a/4274/erasing-flash-nrf51822-causes-chip-to-power-offAfter getting the &quot;Keil- Error: Flash Download failed - &quot;Cortex-M0&quot; I followed a thread which said to use nRFgo Studio to erase and recover the target board. Unfortunately, the board stopped being able to power up from the one main power button afteren-USTelligent Community 13Mon, 03 Nov 2014 16:49:51 GMThttps://devzone.nordicsemi.com/thread/15257?ContentTypeID=1Mon, 03 Nov 2014 16:49:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d2efacd2-0cd8-46f5-86b3-1a7e61033694Sophi<p>Erasing the nRF51822 seemingly bricked the chip. Set up is J-Link lite to custom board. I was able to get to the program screen (from the recover screen) in nRFgo Studio by pressing the power button on my board down repeatedly. Then holding down the power button while programming worked.</p><div style="clear:both;"></div>