FACILITY_BLUETOOTH_ATT

0x80650001: The attribute handle given was not valid on this server.^[1]
0x80650002: The attribute cannot be read.^[1]
0x80650003: The attribute cannot be written.^[1]
0x80650004: The attribute PDU was invalid.^[1]
0x80650005: The attribute requires authentication before it can be read or written.^[1]
0x80650006: Attribute server does not support the request received from the client.^[1]
0x80650007: Offset specified was past the end of the attribute.^[1]
0x80650008: The attribute requires authorization before it can be read or written.^[1]
0x80650009: Too many prepare writes have been queued.^[1]
0x8065000A: No attribute found within the given attribute handle range.^[1]
0x8065000B: The attribute cannot be read or written using the Read Blob Request.^[1]
0x8065000C: The Encryption Key Size used for encrypting this link is insufficient.^[1]
0x8065000D: The attribute value length is invalid for the operation.^[1]
0x8065000E: The attribute request that was requested has encountered an error that was unlikely, and therefore could not be completed as requested.^[1]
0x8065000F: The attribute requires encryption before it can be read or written.^[1]
0x80650010: The attribute type is not a supported grouping attribute as defined by a higher layer specification.^[1]
0x80650011: Insufficient Resources to complete the request.^[1]
0x80651000: An error that lies in the reserved range has been received.^[1]

Sources