Sound from Wired Headphones is Difficult to Hear, cannot be Heard, or Quality is Poor [08/2019 - ]: Procedure

1. Check if the wired headphone jack is securely connected.

   OK

   Wired headphone jack is securely connected.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

SECURELY CONNECT JACK OF WIRED HEADPHONE 

Result: 

OK 

See step  2

1. Temporarily replace the wired headphone with a known good or new one and check if the same problem occurs again.

   OK

   Same problem does not occur.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (WIRED HEADPHONE WAS DEFECTIVE) 

Result: 

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ]