Grandstream Networks GXV3140 Application Manual page 116

Step 2: At the bottom of the page, click on the "Reset" button for Factory reset after selecting the degree of
factory reset (Full Reset/User Data Reset/VoIP Data Reset). A dialog box will pop up (as shown in figure
below)
Click on OK to restore the phone to factory settings.
Grandstream Networks, Inc. GXV3140 USER MANUAL Page 116 of 117
FIRMWARE VERSION 1.0.3.10 Updated : 12/2009