From The Firmware Server Via The Internet - Topfield TRF-7260 User Reference

10.2 From the firmware server via the Internet
You can update the firmware from the firmware server which is being
run by Topfield via the Internet. Make sure that the digital receiver is
connected to your router before configuring the network settings on
the digital receiver.
NOTE
For detailed description about how to set up the router, refer to the
manual of your router.
To enable the digital receiver to update the firmware automatically
when a new firmware is available, set the Automatic Upgrade option to
Enable. Otherwise if you want to do that by yourself, select the Start
firmware upgrade option, then you get asked for confirmation. With
the choice of Yes, it will check up whether a new firmware is available,
and it starts firmware update if any.
10.2 From the firmware server via the Internet 53
Select the Installation > Firmware
Upgrade > Network Firmware Up-
grade menu. You should see a screen
like the left figure.