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nrf51822 DFU Bootloader w/ gcc and SDK 6.0

Has anyone been able to get the DFU over the air bootloader to work with gcc and the newest SDK (6.0)?

I have followed all the tips I can find on here to get it working. I'm successfully compiling, but the bootloader is not functioning.

Here's some resources I've used: devzone.nordicsemi.com/.../ devzone.nordicsemi.com/.../

Interesting behavior I'm seeing:

If I flash the keil version first, then my gcc version, everything is working. It appears the UICR is not being written successfully.

I will gladly share with the community if someone can help me get this working.

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