13
▪
Make sure the telephone runs at least
System Version 1.0.3.30
.
▪
Go to MAINTENANCE
→
UPGRADE
→
FIRMWARE on the Grandstream Web GUI.
▪
Check the CURRENT SYSTEM VERSION
①
in the lower right corner.
▪
If the system version is lower than 1.0.3.30
or not displayed, download the latest
firmware for the phone from the
Grandstream website:
http://www.grandstream.com/support/firmware
▪
Unzip the downloaded file to your PC.
▪
Click UPLOAD
②
and select the file:
gxv33x0fw.bin.
▪
The new firmware is active after a restart.
Grandstream Firmware Version
13
①
②
