Alpine TMX-310U Manuel D'utilisation page 13

Use the direction key ("▼") to select "Upgrade now" and press
"OK" to initialize the Firmware Upgrade.
Press "OK" to confirm.
Once the Firmware Upgrade is finished, press "OK" to reboot the
system. Please note that the reboot of the system takes up to 2
minutes. Do not switch off ACC nor operate TMX-310U.
Privacy:
Restore the unit to its factory defaults. Please note that all user
settings will be reset.
DLNA:
Set the DLNA DMR name. (For future applications)
About:
Access to hardware and firmware information.
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