[Ver:1.0] can search for the tongs normally, but [Ver:2.0] cannot.

Also, [Ver:1.0] can change the MAC address, but [Ver:2.0] cannot.

By the way, the MAC address is changed using the [bccmd] command.

The operating environment is as follows.

・OS Version: Ubuntu 14.04.5 LTS ※Connect this product to this

・Tablet: Android version 6.0 and 13 ※Search for the tongs here

・[hciconfig] is as follows.

The thing that bothers me is the [Manufacturer] item

[Ver:1.0] is "Cambridge Silicon Radio"

[Ver:2.0] is "Realtek Semiconductor Corporation"

There is a difference.

[Ver:1.0]

# hciconfig -a
hci0:   Type: BR/EDR  Bus: USB
        BD Address: 00:1A:7D:DA:53:6A  ACL MTU: 310:10  SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:2138 acl:0 sco:0 events:118 errors:0
        TX bytes:2905 acl:0 sco:0 commands:117 errors:0
        Features: 0xff 0xff 0x8f 0xfe 0xdb 0xff 0x5b 0x87
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: '*********'
        Class: 0x600100
        Service Classes: Audio, Telephony
        Device Class: Computer, Uncategorized
        HCI Version: 4.0 (0x6)  Revision: 0x22bb
        LMP Version: 4.0 (0x6)  Subversion: 0x22bb
        Manufacturer: Cambridge Silicon Radio (10)

[Ver:2.0]

# hciconfig -a
hci0:   Type: BR/EDR  Bus: USB
        BD Address: 60:83:E7:5D:07:07  ACL MTU: 1021:6  SCO MTU: 255:12
        UP RUNNING PSCAN ISCAN
        RX bytes:2291 acl:0 sco:0 events:129 errors:0
        TX bytes:2944 acl:0 sco:0 commands:129 errors:0
        Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: '*********'
        Class: 0x600100
        Service Classes: Audio, Telephony
        Device Class: Computer, Uncategorized
        HCI Version:  (0xa)  Revision: 0xb
        LMP Version:  (0xa)  Subversion: 0x8761
        Manufacturer: Realtek Semiconductor Corporation (93)