Hi,I use nRFgo Studio to erase nRF51822, like this
but it display: ERROR: Invalid serial number!
I found the question how to use nrfjprog --snr???,I can get the same serial number when use "nrfjprog.exe -i". But it aways "Invalid serial number" when i use "nrfjprog.exe --snr 4294967295 --eraseall --reset" in cmd.
What can do next ?