In the serial example, how to use the command JumpToBootloader() to enter dfu mode.

[Leo Lin]

Hi Nordic,

I want to send JumpToBootloader() command to nrf52832 module to make it enter dfu mode and update.

But I got the following error, can you tell me what is the right way.

error : ERROR_REHECTED.

I have successfully updated FW with this command (use button four to enter dfu mode)

nrfutil dfu serial -pkg xxxx.zip -p /dev/ttyACM0

But now I need to use JumpToBootloader() to enter dfu mode.

Another question is to use the nrfutil tool to update the FW, is it necessary to let the nrf52832 module enter the dfu mode first. Right?

My environment is

Operating System: Ubuntu18.04

nRF5 SDK for Mesh v5.0.0

nRF5 SDK v17.0.2

SoftDevice : SoftDevice S132 version 7.2.0

python version: Python 3.6.9

board: PCA10040.

Thanks in advance.

Leo Lin.

[Elfving]

Hey again Leo!

Sounds good! :)

Maybe something along the lines of what is discussed in this case would be interesting for you as well.

Let me know if there is anything else!

Best regards,

Elfving