| @busyby : thanks for answer 
 I came with your procedure. Adapter is working as you can see Copy the codehci0:        Type: BR/EDR  Bus: UART
BD Address: 43:39:00:00:1F:AC  ACL MTU: 1021:8  SCO MTU: 64:1
UP RUNNING PSCAN ISCAN 
RX bytes:647 acl:0 sco:0 events:36 errors:0
TX bytes:1429 acl:0 sco:0 commands:36 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
Link policy: RSWITCH SNIFF 
Link mode: SLAVE ACCEPT 
Name: 'firefly-0'
Class: 0x700100
Service Classes: Object Transfer, Audio, Telephony
Device Class: Computer, Uncategorized
HCI Version: 4.0 (0x6)  Revision: 0x10c
LMP Version: 4.0 (0x6)  Subversion: 0x6109
Manufacturer: Broadcom Corporation (15)
 Unfortunately, after adding device it came with an error with paring procedure. I am using Blueman applet 1.23 for managing my bluetooth devices. For example, It recognized my phone (samsung galaxt s5)  but it sends wrong paring codes (wrong numbers) to paring device. This same problem I have with bluetooth keyborad (Rapoo T Series) |