| Troubleshooting |
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Resetting Your Device
You can reset the device to factory settings with the need for entering the Administrator's password.
Procedure
1.
Go to >
Settings
>
Device Settings
>
Debug (Admin only, default password: admin)
.
2.
Tap
Reset to Factory Settings
.
It prompts if you are sure to reset to factory default.
3.
Tap
OK
.
Tip:
You can also long press the pound key (#) and the star key ( * ) for about 6 seconds when
the phone is idle.
Troubleshooting
If you are having issues with your device, you can try the troubleshooting options and solutions in the
following topics to resolve certain issues.
•
•
Why does the device display “Network unavailable”?
•
Why does the device display time and date incorrectly?
•
How can I obtain the MAC address of a device when the device is not powered on?
•
•
•
How can I switch to Skype for Business edition?
•
Checking the IP Address of Device
Why is the screen blank?
• If the device is powered from PoE, ensure you use a PoE-compliant switch or hub.
• Ensure that the device is properly plugged into a functional AC outlet.
Why does the device display “Network unavailable”?
• Ensure that the Ethernet cable is plugged into the Internet port on the phone and the Ethernet cable is
not loose.
• Ensure that the switch or hub in your network is operational.
Why does the device display time and date incorrectly?
Check whether your device obtains the time and date from the SNTP server automatically. If the device
fails to connect the SNTP server, contact your system administrator for more information. You can also
configure the time and date manually.
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