dfu unsuccessful on nRF5_SDK_13.0.0-1.alpha_055eef3

[khan_khan]

i am using nRF5_SDK_13.0.0-1.alpha_055eef3 s132_nrf52_5.0.0-1.alpha_softdevice and used examples\dfu\bootloader_secure\pca10040\ for secure DFu OTA .everytime i try i get the same 8202 error by using toolbox app and [DFU]: REMOTE DFU OPERATION FAILED when I use Nrf connect app . I used following command nrfutil pkg generate --hw-version 52 --application-version 1 --application nrf52832_xxaa_s132.hex --sd-req 0x9D --key-file my_secret_private_key.pem app_dfu_package.zip . when i use the following command nrfutil dfu ble -f -pkg app_dfu_package.zip -ic NRF52 i got this error pc_ble_driver_py.exceptions.NordicSemiException: Timeout. Target device not found.

[bjorn-spockeli]

The first thing you should do is to use the production release of SDK v13.0.0 and not the alpha release. You can download the production version from here.