Grandstream Networks WP820 - Diagnostics; LCD Diagnostics; LCD off; Figure 95: Diagnostics APP

P a g e | 110
WP820 User Guide
Version 1.0.7.7
DIAGNOSTICS
The WP820’s LCD, Audio and many other features can be diagnosed from the diagnostics APP. The
sections below describe how the diagnosis is run:
Figure 95: Diagnostics APP
LCD Diagnostics
Proceed from Diagnostics APP→ Click on LCD Diagnostics, and you can use the left/right Keys to change
the pictures and OK to exit:
Figure 96: LCD Diagnostics
LCD Off
Proceed from Diagnostics APP→ Click on Select to turn LCD Off, so that you can verify if the backlight does
turn off.