LG G3100 User Manual page 191

You can remove the contents of Cache memory and change the
Cache check mode.
The contents of Cache memory will be removed.
You can change the time for checking the Cache memory.
The cache is always checked whenever URL is loaded or
navigated.
The cache is only checked when the WAP is started.
The cache is never checked.
A list of the available certificates is shown.
You can reset all the current settings of profiles to the factory default.
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