yes, you should be able to do a Hard Reset, and all should be good.
I run a HP RX3715 Mobile Media Companion PocketPC Runing PPC2003 Pro.
Here is the hard reset info for your unit.
If you need any help, let me know
Justin
The Dell Axim X30 can be hard reset by performing the following procedure:
With the X30 turned on, press and hold the power button at the top of the unit. While holding the down power button, use the stylus tip to press the “Reset” button mentioned above. Release both buttons. The unit will power back on and display a menu to confirm the hard reset request. To continue to hard reset the Axim, press the “Contacts” button – to cancel the reset, press the “E-Mail” button. If you select the “Contacts” button, The Axim will be hard reset, just as it was when it left the factory.