Erase all from nrf52840

[Tabassum]

Hi

Can someone suggest me how can i erase the secure bootloader from nrf52840(Dongle),Because am unable to get "erase all" or "erase and write" option in nrf connect application.

And the dongle is not getting detected when connected to other PC's,

Please suggest the option to completely erase the secure bootloader from the dongle.

Thanks

Tabassum

[joakimsaaz]

If you have nrf5 Command Line Tools, you can do it by command line: nrfjprog -e

[Tabassum]

Hi joakimsaaz

I tried with command line tools ,but my device is not getting detected .. The following is the snapshot of my command

line tool when device is connected ..Please suggest any alternative

[Bjørn Kvaale]

You cannot do an erase all via nRF Connect for Desktop programmer app when using the dongle. The reason for doing this is that if someone erases the bootloader, it would not be possible to program any new applications on the dongle anymore. The reason that nrfjprog does not work with the dongle is because you do not have a built in J-Link on the 52840 dongle. I would recommend reading this blog post in detail.

Why do you want to remove the bootloader?