Deciphering HCI event from BLUEnrg-ms bluetooth device

Question

I am successfully able to communicate with my IDB05A1 from my nucleo-64 board.

I make it discoverable and pair my phone to it. However immediately after pairing, the device disconnects from my phone. Before it disconnects I receive a HCI event i cannot decipher:

0x04 0xff 0x0b 0x01 0x0c 0x01 0x08 0x04 0x00 0x02 0x00 0x00 0x02 0x00

please help me decipher this. datasheet with commands and events

0x04        //HCI event
0xff        //Vendor specific
0x0b        //Contains 0b(12) bytes
0x01, 0x0c  //BLUEnrg event code
0x......

What event is this?

Answer 1

This event looks not related to the problem. It indicates the modified value of some attribute.

HCI event packet: 0x04 //HCI event 0xff //Vendor specific 0x0b //Contains 0b(11) bytes 0x01 0x0c 0x01 0x08 0x04 0x00 0x02 0x00 0x00 0x02 0x00 //Event data

Event data: 0x0c01 //ACI_GATT_ATTRIBUTE_MODIFIED_EVENT 0x0801 //The connection handle which modified the attribute 0x0004 //Handle of the attribute that was modified 0x0002 //Length of the attribute data 0x00 //Offset 0x0002 //The modified value