DFU fails with error code: NRF_ERROR_INTERNAL (0x3)

[AptusBE]

Hi!

I'm trying out the secure DFU example and i'm running into some problems:

- I compiled the bootloader with my own generated public key, this all worked fine. I flashed it together with the softdevice.

- Next I generated a pkg with an application.hex file signed with the correct key file using nrfutil.

When I try to update OTA with nrf connect on windows I get the following error:

When I try it using the nrf connect app on android with the generated zip, it just disconnects.

Tools used:

nRF52832 DK and sdk version 15.2.0, nrf connect version 4.22.3 android

Anybody seen this before? What could I be doing wrong?

[Hung Bui]

Hi Marvin, 

Could you try to update an SDK example instead of your application? Just to test. 

I have a step by step guide here that you may want to follow. 

If you can get a sniffer trace when you do DFU it would be very useful. 

[AptusBE]

I was building the zip file with the wrong SD firmware ID! Thanks for the help.

[razor_et]

hi , l also met this problem.

I use the 52832 DK to update the 52840,and when i choose the /example/dfu/secure_dfu_test_image/ble/52840,and then nrf connect return the info as same as your picture .

what did i missed?

thanks you 

[StevenR]

I also have the same problem, I ported the example to nRF52840, but I get the exact same error message as above. Is there any way to resolve this? I built the zip with the right SD firmware ID, so that can not be the problem.

Maybe there is some incompatibility in the protobuf protocol?

I see there is a GitHub repository (https://github.com/NordicPlayground/nRF52840-ble-secure-bootloader) which contains an updated version for the nRF52840, but this does not include the latest SDK 15.3.0_59ac345 and also does not include the S140 SoftDevice 6.1.1. So I would really get an up-to-date version! Thanks.