To cancel a firmware update and restore your previous state,
follow the Recover Mode (button) sequence:
1. Power Off the D600 and disconnect from external power (DC-in
Jack, Charging Stand, Charging Cradle)
2. With the end of a pen or stylus, press and hold the Restore Button
(located next to the power connector).
3. Connect the D600 to external power while holding the Restore
Button for about one second.
RECOVER MODE
Restore Button
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