Hello,
I use NRF Connect Desktop on Windows 10 - 64 bits.
When I lauch the Programmer application with my NRF52 I have this issue :
2020-07-20T11:27:17.148Z ERROR Error while probing devices: Error occured when get serial numbers. Errorcode: CouldNotCallFunction (0x9)
Lowlevel error: INVALID_OPERATION (fffffffe)
If I use my Thingy 91, it's working the device is recognized. I only have the problem with the Thingy 52.
Best Regards.