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GRP261x/GRP2624/GRP2634 Administration Guide
Version 1.0.5.48
Figure 13: Alternative Firmware - Rollback
Firmware Upgrade
The GRP261X/GRP2624/GRP2634 series can be upgraded via TFTP / FTP / FTPS / HTTP / HTTPS by
configuring the URL/IP Address for the TFTP / HTTP / HTTPS / FTP / FTPS server and selecting a download
method. Configure a valid URL for TFTP, FTP/FTPS or HTTP/HTTPS, the server name can be FQDN or IP
address.
Examples of valid URLs:
firmware.grandstream.com/BETA
fw.mycompany.com
There are two ways to setup a software upgrade server: The LCD Keypad Menu or the Web Configuration
Interface.
Upgrade via Keypad Menu
Follow the steps below to configure the upgrade server path via phone's keypad menu:
1. Press MENU button and navigate using Up/Down arrow to select System.
2. In the System options, select Upgrade.
3. Enter the firmware server path and select upgrade method. The server path could be in IP address
format or FQDN format.
4. Select Start Provision option and press the "Select" Softkey.
5. A warning window will be prompt for provision confirmation. Press “YES” Softkey to start
upgrading/provisioning immediately.
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