My Axim X30 would not turn on using battery power but would turn on when connected through charger adapter.
Solution:
1. Connect AC adapter directly to the charger adapter and then to the Axim X30 and to the electrical outlet.
2. Charge battery until power button is solid green.
3. Press the power button to power on.
4. Remove cable from cable connector leaving the cable connector connected to the Axim X30. The Axim X30 will remain powered on.
5. Turn the Axim X30 off.
6. Turned the Axim X30 on using battery power.
7. Remove cable connector from Axim X30.