Seeeduino XIao Ble nrf 52840 sense OTA update

[faizannazir]

I found this post

Anyone able to do an OTA (Over the Air) firmware (DFU) update with the XIAO 52840 BLE?

I believe if using the Adafruit bootloader you can only use unsigned / unsecure DFU and only able to use the Adafruit BLE app. For secure DFU you need a pm key. Any guidance on this?

I think he change the bootloader. But he did not share any arduino code