Dongle not entering boot mode after flashin blinky.hex and not detected as serial port as well

[bhanuprakash3242]

Dongle not entering boot mode after flashing blinky.hex and not detected as serial port as well nRF52840-MDK USB dongle

[caizelin]

Dongle not entering boot mode after flashing blinky.hex and not detected as serial port as well nRF52840-MDK USB dongle

@bhanuprakash3242 which blinky.hex are you flashed? The application address must start after MBR. That is, the blinky.hex should start at 0x1000 address.

[alexcode9]

Same thing happened to me, copied a hex after uf2conv and now the dongle is lost... it just blinks red two times if button pressed

EDIT: check this issue #23 try double clicking the button it worked for me!

[caizelin]

Solved! Will close for now.