Couldn't connect 52810 successfully during DFU mode

[bean]

according to this article to modify my code. https://devzone.nordicsemi.com/f/nordic-q-a/27185/52810-how-to-use-dfu

It  could be scanned but couldn't connected.

Is there anything i omitted ?

[Sigurd]

Hi,

• Are you using nRF Connect for Desktop or Mobile to connect ?
• What happens when you try to connect? do you get any error messages ?

[bean]

Hi 

I do use nRF Connect to connect !

there are two boards, a product demo (52810)  and  a nordic PCA10040.

I needed to use dfu on 52810,  so  I made some modification base on SDK14.2.0.

I got these modification from https://devzone.nordicsemi.com/f/nordic-q-a/27185/52810-how-to-use-dfu

-----------------------

1. softdevice : nRF5_SDK_14.2.0_17b948a\components\softdevice\s112\hex

2. project: nRF5_SDK_14.2.0_17b948a\examples\dfu\bootloader_secure_ble

after compiling ...

Using nRFgo studio:

1. erase all

2. program softdevice

3. download bootloader by keil

if I do these operation on 52810 , advertising is ok but can't be connected. 

to do these operation on PCA10040 , everything is ok !