DFU example doesn't work. need explain step by step

[Mikhail]

Hi!

nRF52. S132, SDK13.

I try to use ble_dfu_send_hex example.

1. what shoul I do first? via nrf gostudio load SD. correct?

Which SD? from this folder (dfu_test_softdevice_s132) Or usual SD (s132_nrf52_4.0.2_softdevice)

2. what should I do next?

[Hung Bui]

Hi Mikhail,

Please follow the documentation on inforcenter, you can also follow my step by step guide here.

[Hung Bui]

Hi Mikhail,

Sorry I didn't see your last comment. Yes you can flash your app using Jlink and then use DFU OTA later. You have 2 option to enter DFU , via holding a button when the board reset or enter it via BLE command (buttonless example). Please have a look at appendix 2 in my blog.

After you enter DFU bootloader with a button, you should do DFU OTA, not flashing via Jlink.