52840 dongle

[jwx]

I use PCA10059 demo board,receive BT data by" nrf connect for desktop",yesterday it is ok,but today when I plug it into my PC,it can't be recognized.and no any indicator, I want to know why, how to solve?

[Simonr]

Hi

Please read the section called "Recover after an accidental UICR erase" in the Dongle Programming tutorial and see if the steps there help you to get back to normal operation. If the UICR and bootloader has been erased you won't be able to discover it as a bootloader/ USB device at all since the flash device is "empty".

Best regards,

Simon