Welcome to Fixya
Passwords are encrypted type. There is no special code that you need to enter to bypass the password for this unit. The only way for you to use this unit again is to do a Hard Reset. Meaning everything will be back to original factory state. If you decide to do that, then please follow the procedure below:
A clean reset clears all user-installed settings, programs, and data, and restores
your HP iPAQ to factory settings.
To perform a clean reset and return your HP iPAQ to factory settings:
1.Press and hold the Answer/Send, Power, and End Call buttons.
2.While holding these buttons, use the stylus to lightly press the Reset button on the bottom of the HP iPAQ until the device restarts.
3.When the HP iPAQ restarts, release all of the buttons, and then remove the stylus from the Reset button.
The HP iPAQ restarts and powers on.
Thank you for using Fixya!
If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b