Grandstream Networks HT502 SOFTWARE UPGRADE

Grandstream Networks, Inc. HT-502 User Manual Page 30 of 32

Firmware Version 1.0.4.2 Last Updated: 06/2011

SOFTWARE UPGRADE

Software upgrade can be done via either TFTP or HTTP. The corresponding configuration settings are in

the ADVANCED SETTINGS configuration page.

To upgrade via TFTP or HTTP/HTTPS, the “Firmware Upgrade and Provisioning upgrade via” field needs

to be set to TFTP HTTP or HTTPS, respectively. “Firmware Server Path” needs to be set to a valid URL of

a TFTP or HTTP server, server name can be in either FQDN or IP address format. Here are examples of

some valid URL.

e.g. firmware.mycompany.com:6688/Grandstream/1.0.4.2

e.g. 72.172.83.110

NOTES:

y Firmware upgrade server in IP address format can be configured via IVR. Please refer to the

CONFIGURATION GUIDE section for instructions. If the server is in FQDN format, it must be set

via the web configuration interface.

y Grandstream recommends end-user use the Grandstream HTTP server. Its address can be found

at http://www.grandstream.com/support/firmware . Currently the HTTP firmware server IP address

is 72.172.83.110. For large companies, we recommend to maintain their own TFTP/ HTTP/HTTPS

server for upgrade and provisioning procedures.

y Once a “Firmware Server Path” is set, user needs to update the settings and reboot the device. If

the configured firmware server is found and a new code image is available, the HT502 will attempt

to retrieve the new image files by downloading them into the GXW400x ’s SRAM. During this

stage, the HT502’s LEDs will blink until the checking/downloading process is completed. Upon

verification of checksum, the new code image will then be saved into the Flash. If

TFTP/HTTP/HTTPS fails for any reason (e.g. TFTP/HTTP/HTTPS server is not responding, there

are no code image files available for upgrade, or checksum test fails, etc), the HT502 will stop the

TFTP/HTTP/HTTPS process and simply boot using the existing code image in the flash.

y Firmware upgrade may take as long as 15 to 30 minutes over Internet, or just 5 minutes if it is

performed on a LAN. It is recommended to conduct firmware upgrade in a controlled LAN

environment if possible. For users who do not have a local firmware upgrade server, Grandstream

provides a NAT-friendly TFTP server on the public Internet for firmware upgrade.

y Grandstream’s latest firmware is available at http://www.grandstream.com/support/firmware .

Oversea users are strongly recommended to download the binary files and upgrade firmware

locally in a controlled LAN environment.

y Alternatively, user can download a free TFTP or HTTP server and conduct local firmware upgrade.

A free windows version TFTP server is available for download from

http://support.solarwinds.net/updates/New-customerFree.cfm. Our latest official release can be

downloaded from http://www.grandstream.com/y-firmware.htm.

Instructions for local firmware upgrade:

1. Unzip the file and put all of them under the root directory of the TFTP server.

2. Put the PC running the TFTP server and the HT502 device in the same LAN segment.