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Pairing STM32WB55 with Windows with no IO capabilities

tmk
Associate

Hi, 

I am trying to pair STM32WB55 (slave) with windows (master) on a custom setup. While pairing, I am getting this error. The STM32WB55 must have no IO capabilities, and hence configured as No Input No Output. 

tmk_0-1738869328778.png

This seems to show that authentication requirements were not met on one of the devices. Where can I find the minimum authentication requirements? 

Also, what does Pairing KO mean?

I am also capturing the BLE traffic on wireshark. The windows sends a pairing request to the WB55 but instead of a pairing response, a pairing failed message is sent. 

tmk_1-1738869505198.png

Any help navigating this problem will be appreciated. 

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