Error 0x80650008

Value: -2140864504 | 0x80650008 | 2154102792

What does it mean ?

E_BLUETOOTH_ATT_INSUFFICIENT_AUTHORIZATION  
The attribute requires authorization before it can be read or written.
Value: 8 | 0x0008 | 0b0000000000001000

Where does it come from ?

FACILITY_BLUETOOTH_ATT  
Bluetooth ATT (Attribute Protocol)
Value: 101 | 0x065 | 0b01100101

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