Can not reprogram board after attempting to use DFU

[BigMike]

I was attempting to implement the secure bootloader example on my custom board (nrf52832) and it failed, so I have been trying to reprogram the board with our normal application using j-link and SES ver 5.42b. It fails when it attempts to flash the softdevice. I get the same error if I try to use nrfjprog. I have tried using the recover command in nrfjprog along with just trying to program the software but I get a write verify failed. At this point I have run out of things to try.

[BigMike]

Hello Marcus,

I have tried your suggestion but still no luck... but let me share some more insight. It seems that I am able to reprogram the main section of the flash where the application code resides but I get an error when I try to flash the softdevice area even though I erase all the chip's flash area. I have tried using nrfjprog and SES IDe commands. Any suggestions