(found in the System menu) after an update to ensure all new settings are applied correctly. Auto-Search : You will need to run an Automatic Search to reinstall your TV and radio channels. Official Documentation
: Updates local channel tables for better reception during "auto-search". Preparation Checklist Before starting, ensure you have the following: Vivax Dvb-t2 181 Software Update
If your receiver only shows a logo and won't enter the menu, it may require a "forced" flash, which usually involves holding a specific button on the unit while plugging it in with the USB inserted. (found in the System menu) after an update