How to enter DFU Mode

[Siva Subrahmanyam]

Apart from pressing Button 4 or adding a DFU service to current running application. Is there any way to enter DFU mode from application?

Is it possible with nrfutil to move from application to DFU Mode, Update the image.

[Siva Subrahmanyam]

So from nrfutil python script i should set GPREGRET register. i am using example/dfu/bootloader souce code on PCA10001 evaluation kit with s120 softdevice. What are the changes needed.

[John]

My post above was discussing changes needed in the device FW. It shouldn't impact the python script I don't think.