nrf52840 dk buttonless DFU

[devtty]

I am trying to implement the buttonless dfu example, I successfully managed to upload the template example examples\ble_peripheral\ble_app_buttonless_dfu and can see it advertising "Nordic Buttonless" and I connect to it with nrfConnect on my phone but it says the device does not support Nordic nor McuMgr DFU update mechanisms. 

The same thing happened when I just uploaded the precompiled example "sd_s140_bootloader_buttonless_with_setting_page_dfu_secure_ble_debug_without_bonds.hex" found in examples\dfu\secure_dfu_test_images\ble\nrf52840. 

What I am missing? 

Thanks.

[Marjeris Romero]

Hi,

Please take a look at this guide for 'Getting started with Nordic's secure DFU botloader'.

Best regards,

Marjeris

[devtty]

Thanks! I had already gone through that a couple times (I should have mentioned that). The issue I had was actually solved here:

https://devzone.nordicsemi.com/f/nordic-q-a/34514/buttonless-dfu-example-sdk15---no-dfu-service

All I had to do on my iphone was clear the cache by toggling flight mode enable. Then I could finally see the DFU service.