Beyonwiz FV-L1 - Manual (Page 109)

Advanced Setup
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3) Clear IceGuide Disk Cache
The EPG information from IceTV is stored on the internal HDD (see “Ice
Guide” section in Chapter 4). You can clear the EPG information and
reload the data from the IceTV server. If you select this menu item
with the OK button, a confirmation pop-up dialog will be displayed, as
shown below.
Select “Yes” and press the OK button to proceed. To cancel the clear
IceGuide disk cache function, select “No” and press the OK button, or
press the EXIT button