Jeste byste mohl zkusit tento postup:
1. Power off the unit.
2. HOLD down the power button and you will see "Pre Boot Mode" appear on the lower part of the display. KEEP HOLDING the power button down and the display will flicker, do this until the pre boot mode message disappears. This seems to take a long time (60 seconds at least).
3. Once the pre boot mode message disappears release the power button and your device will perform some activites to recover from the above problem.
Zbezny preklad:
1) Vypnete pristroj
2) Drzte zapnute tlacitko napajeni. Casem by se ve spodni casti displeje melo objevit "Pre Boot Mode". Stale drzte tlacitko a displej zacne blikat. Drzte tlacitko stisknute dokud nezmizi napis "Pre Boot Mode". Cele to trva dost dlouho minimalne 60 sekund.
3) Pote, co pustite tlacitko se pristroj pokusi zotavit.
Mozna to funguje pouze pro starsi modely nebo verze firmware. Uzivatele tvrdili, ze to pomohlo...
http://www.gps-data-team.com/pda-gps-navigation/topic/479.html