when I start a DFU procedure the device is advertising empty packets

[M.Anis]

I'm testing the DFU as described in this link developer.nordicsemi.com/.../a00086.html after reseting in DFU mode, when I start the device discovery, I only get empty packets

bootloader.rar
ble_app_hrs.rar
nrfjprog_win.sh

[Hung Bui]

Hi M.Anis,

I assume you were testing with the ble_app_hrs in the SDK v8.1.0. Did you do any modification ?

Please be noted that you would need to flash the bootloader (\examples\dfu\bootloader) before you update your application (via the bootloader). Documentation here. Please let me know what you get when testing with the bootloader.