Cowon Auto Capsule AD1 User Manual page 41

More Functions
If using microSD card format function
If the power plug is connected while the
multifunction button is simultaneously pressed for
a long time, the format function of the microSD
card equipped within can be used.
When microSD card formatting starts, a sound
notifying the start of microSD card formatting
is alerted while the LED lights up, and a sound
is alerted and the Red/Blue LED lights up while
microSD card is being formatted.
When microSD card formatting is completed,
a sound notifying completion of microSD card
formatting is alerted and the LED lights up, and
the system is automatically reset.
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