Here it is! Found it on
http://mobilitytoday.com/forum/showthread.php?t=7567
(The links are all there, check it out!)
How to Recover your iPAQ after a botched ROM Update
If a user is attempting to update the BIOS or FIRMWARE of their iPAQ and the power goes out, or they accidentally turn-off their iPAQ, when then attempt to restart the iPAQ, it will only get to a white-screen, where it then sits forever.
Bboth soft and hard-resets do not appear to clear the trouble in most cases.
Hopefully you will never need to use this step-by-step process.
I have confirmed with Nathan at HP Technical Support that this is their approved recovery process:
1.) Go to the Master Index of BIOS, FIRMWARE, & DRIVER Updates,
2.) Select the appropriate hyperlink for your model.
3.) Download the most recent BIOS version SoftPAQ (SP) for your Model of iPAQ.
4.) Press the POWER + iTASK + CONTACTS + RESET buttons at the same time so as to enter the FLASH Mode
5.) Make sure your USB connection to the Cradle is hooked-up.
6.) Place your iPAQ in the USB Cradle.
7.) Stop the MS ActiveSync session on your HOST PC: CTRL-ALT-DELETE > TASK MANAGER > PROCESSES.
8.) Hilight WESCOMM.EXE and select "End Process" button.
9.) Run the file you downloaded from HP in step 3.
10.) The iPAQ should now begin Flashing the iPAQ's ROM BIOS.