LG KE820 User Manual page 183

Installation
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When inserting an external memory card, remove and insert it again if its icon appears red. (If
the icon remains red after re-insertion, the memory card may likely be damaged, so replace it
with another one.)
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Removal of an external memory card or turning the mobile phone off while using the card
(Store, Copy, Remove, Initialise, Play, etc.) may clear or initialise any stored file, which in turn
may lead to severe damage on the card or malfunction of the phone.
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It is recommended the card be initialised within the mobile phone. The memory card includes
some system space for any external memory file so some capacity may survive the initialisation
of the memory card.
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It is always advised to make a backup of any data stored on your memory card.
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