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Thingy 52 DFU Error

Hi Dev Team,

I would appreciate if you can help me sort out the errors that I am getting when doing a DFU OTA using the 52 Dev Kit to the Thingy. I basically followed all the steps in this guide: https://devzone.nordicsemi.com/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader and now I'm not being able to move ahead.

Here is the error: "When writing 'EXECUTE' command to Control Point Characteristic of DFU Target: Operation code 4 (EXECUTE) failed on DFU Target. Result code 11 (EXTENDED_ERROR) Extended error code 5 (FW_VERSION_FAILURE)"

Any help is appreciated.

Thanks in advance!

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