Can not flash Nordic Thingy:91

[shakhizat]

Hi Nodic community,

Could you please help me to flash my Nordic Thingy:91 development board. I was able successfully build Zephyr-based project by following instructions from here, but I can not flash it via usb cable using nRF Programmer tool. What hex file should I flash, since I can not flash merged.hex?

Thanks in advance!

Best regards,
Shakhizat

[shakhizat]

Here is the screenshot.

[Didrik Rokhaug]

Hi,

You can find a list of the generated DFU files of a build here: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/mcuboot/readme-ncs.html#using-mcuboot-in-nrf-connect-sdk

There you will see that the file you want to use is "app_signed.hex".

Note that if you are using an NCS version older than 1.7.0, you must add MCUBoot support to your project manually. I've explained how here:  How to add DFU support to your Thingy:91 project

(In newer NCS versions, MCUBoot is added automatically to projects built for the Thingy:91)

Best regards,

Didrik