nrf52 DFU flashing issue

[man]

Hello NRF ,

How Do I flash my dfu bootloader ( merged with softdevice ) and my application hex from nrfgo studio ?

I am able to flash merged bootloader from go studio but after flashing my application hex , it still advertises DFUTrag ( bootloader ) not my application .

 

[Einar Thorsrud]

Hi,

The bootloader will not know that you have a valid application unless you also generate and flash the bootloader settings page. So in other words, when you have a system with SoftDevice and bootloader you need to flash 4 hex files (which you can merge beforehand if you like):

• SoftDevice
• Bootloader
• Application
• Bootloader settings page

PS: nRFgo Studio is now legacy software and I recommend you use nRF Connect Programmer instead, though that is not related to what you are seeing.

[man]

let me check this

[man]

hello , I have tried what you said ( flashing the bootloader config hex file ) ,But from NRF connect programmer ,I am not able to load my merged bootloader hex . It is showing  below error .

[man]

But bootloader i am able to flash from go studio , So now what I am doing is , bootloader I am flashing from go studio and application.hex , bootloader_setting.hex from connect programmer .

But what I want is , all of these to happen from one nrf connect programmer . 

[Einar Thorsrud]

Hi,

It seems the hex file is corrupt. There was an issue with merghex before which made it sometimes generate corrupt hex files with overlapping data. Can you try updating to the latest nRF Command Line Tools?

You can try to add all hex files separately to nRF Connect programmer instead of merging first. Does that work?