Hi guys,
we are currently evaluating the nrf51422 chips for our product. We have ordered the N5 Starter Kit from Dynastream and were able to flash different sample projects and custom code via Keil µVision. We have flashed the chips with the S310 softdevice as we need both BLE and ANT support. Sometimes Keil refused to flash our application (No Cortex M0 device found) so we had to fire up nrfgo studio and reflash the S310 softdevice. Unfortunately, we have been unable flash anything at all (neither softdevice nor application) nor erase the chips since yesterday. nrfgo studio recognizes our Segger J-Link but is unable to recognize the nrf51422s so we cannot recover the chips. The same goes for J-Link commander. It recognizes the Segger but no devices. It only detects the VTarget voltage with either 1.7V when using a CR2032 coin cell or 3.5V when powered via USB. We tried to recover via nrfjprog from the command line but it says it cannot detect any NRF51 devices.Running the command sequence to erase the flash via J-Link (r, w4 4001e504 2, ...) doesn't work either.
Have we bricked our chips or is there any other way to revive our devices?
Thanks in advance!
