User's Manual

Grandstream Networks, Inc. GXV3140 USER MANUAL Page 79 of 83
FIRMWARE VERSION 1.0.1.18 Updated : 09/2009
Step 3: Press “Select” (F1 or the OK button) to access the Maintenance page. In the Upgrade tab, press
the Down arrow twice to select the Factory Reset option. (Shown in the figure below)
Step 4: Press the OK button, the phone will display a warning message. (Shown in the figure below)