Samsung SM-S921U - Page 13

Quality Test
13
SIM card
•
Function: Check whether the SIM card is working
normally.
•
Provided information
‒
Status: View whether the feature is working
normally.
‒
Service provider: View the carrier.
‒
Number: View the phone number.
If the test result is not Normal , remove the SIM
card from the SIM card tray and replace it. If
possible, try again with another SIM card.
Power restart status
•
Function: Check your device’s restart history.
•
Provided information
‒
Status: View whether the feature is working
normally.
‒
FAQ: View frequently asked questions.
‒
History: View your device’s restart history.
Official software
•
Function: Check whether the software is working
normally.
•
Provided information
‒
Status: View whether the feature is working
normally.
‒
Service information: View the Samsung
Service Center location.