XAV-V630BT - Sony Car Audio Service Manual (repair manual). Page 8

17.  Touch the N-mark part of the smartphone to the N-mark part of 

the unit.

18. Check that “Completed!” is displayed on the screen of the 

smartphone.

Note 2: When “Completed!” is not displayed on the screen of the smart-

phone, refer to “3. Error Display”.

15Visual NFCtagWriter

19. Tap the “Read” on the screen of the smartphone.

15Visual NFCtagWriter

20. Check that “BD_ADDR” on the screen of the smartphone 

accords with BD_ADDR confi rmed on the screen in the test 
mode and “MODE” on the screen of the smartphone is “00 00 
(Read-only)”.

00   17   53   76   73   68

68   73   76   53   17   00

15Visual NFCtagWriter

21. End the 15Visual NFCtagWriter application on the smart-

phone.

22. Check the operation of connecting with the smartphone by one 

touch (NFC).

 

(Refer to the 

“OPERATION CHECK OF THE NFC AFTER  

COMPLETING THE REPAIRS” on the page 10)

3. Error Display
When the writing of the NFC tag data has failed, “Error” is dis-
played on the screen of the smartphone.
When “Error” is displayed on the screen of the smartphone, oper-
ate according to the procedure below.

15Visual NFCtagWriter

Procedure:
1.  Tap the “Write” on the screen of the smartphone to write of the 

NFC tag data again.

2.  When “Error” is displayed on the screen of the smartphone 

again, tap the “Read” on the screen of the smartphone.

3.  Check that “MODE” on the screen of the smartphone is not 

“00 00 (Read-only)”.

4.  When “MODE” on the screen of the smartphone is “00 00 

(Read-only)”, execute the writing of the NFC tag data again 
after replacing the VOL knob assy.

 

(When “MODE” on the screen of the smartphone is “00 00 
(Read-only)”, the writing of the NFC tag data cannot execute)