Restore To Factory Default Using Hard Keys; Figure 18: Wp820 Web Gui - Confirm Factory Reset - Grandstream Networks WP820 Administration Manual

3. A dialog box will pop up to confirm factory reset.
4. Click OK to restore the phone to factory settings.

Restore to Factory Default Using Hard Keys

To perform hard reset of the phone using keypad buttons please follow below steps:
1. Power cycle the WP820.
2. Press key 1 + key 9 immediately and hold it until the LCD shows the factory reset message
3. Release the buttons and the phone will boot up with the default settings.

Figure 18: WP820 Web GUI - Confirm Factory Reset

WP820 Administration Guide
Version 1.0.1.15
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