User's Manual

Troubleshooting
161
3. Click Import to import the configuration file.
Note
How to upgrade firmware?
To upgrade firmware via web user interface:
1. Click on Settings->Upgrade.
2. Click Browse to locate the firmware from your local system.
3. Click Upgrade to upgrade the firmware.
The browser pops up the dialog box “Firmware of the SIP Phone will be updated. It
will take 5 minutes to complete. Please don't power off!”.
4. Click OK to confirm upgrading.
How to reset the phone?
Reset the phone to factory configurations after you have tried almost all
troubleshooting suggestions but do not solve the problem. You need to note that all
customized settings will be overwritten after reset.
To reset the phone via phone user interface:
1. Press Menu->Advanced (password: admin) ->Reset & Reboot->Reset to Factory.
2. Press or , or the Switch soft key to select the desired type from Reset Option
field.
3. Press the Save soft key.
The file format of configuration file must be .bin.