Here you go:
(The following is cut and pasted from this post: http://forums.webosnation.com/hp-tou...ted-guide.html)
Your second option, is to run webOS doctor to update to 3.0.4. IF YOU HAVE ALREADY MANAGED TO UPGRADE TO 3.0.4 WITH THE NORMAL OVER-THE-AIR SYSTEM UPDATE DO NOT PERFORM THIS STEP.
Once again, DO NOT DO THIS UNLESS YOU CANNOT UPGRADE IN THE "NORMAL" WAY!
Did you hear me? Don't run webOS doctor unless you have a good reason to (your touchpad is broken or your touchpad won't update with the update program).
Ok, I tried to warn you. Ready to do a webOS doctor? Lets go!
Update: Before performing these steps, make sure you set your USB ports to NOT power down to save power - failure to do this can sometimes cause a hang as your computer kills the USB connection mid-doctor. Here's how to do that:
Turning off the USB port power save option in Windows
In Windows XP, click on Start > Control Panel (or Start > Settings > Control Panel).
Double-click on System, then open the Hardware tab.
Click Device Manager.
In Windows 7, click on start and type "device manager" into the search box, then select it when it pops up.
Click the + at Universal Serial Bus Controllers.
Right-click any of the USB Root Hub's and select Properties.
Open the Power Management tab.
Clear the checkmark from Allow the computer to turn off this device to save power.
Repeat this procedure for every single USB Root Hub.
If you'd like, when you finish running webOS doctor, you can go ahead and change these settings back (if it's a desktop I'd say don't bother, it's a -tiny- amount of power use to keep them powered and can save you the occasional USB related issue).
Ok, now that your USB ports are ready:
Step 1: FULLY charge your touchpad. NOTE: Since you need a charged touchpad to perform this step, ensure your charger is working. If your touchpad isn't charging when plugged into the wall, this could be because of an odd quirk of the charger itself. It can be split into two pieces by twisting it and pulling it apart. Try twisting the charger back into "locked" position and you should be back in business.
Step 2: Get your hands on the latest webOS doctor. You may need to do this as current load on webOS servers is extremely heavy due to the huge influx of new touchpad users. To do this, go to your main PC (NOT your touchpad) and first visit your palm profile and log in:
From there, go to device options, and select webOS doctor to download it.
If that doesn't work (some people are reporting that they have invalid serial numbers and are unable to log into hp/palm), try downloading it here (be sure to select the right version - 3.0.4 for the touchpad or whatever is current at the time you're reading this):
At this point, while it's downloading, grab your touchpad and open the launcher. Swipe over to settings and "device info". Perform a FULL ERASE. Finally, turn your touchpad completely OFF. The touchpad is now ready for the doctor.
Once webOS doctor is downloaded on your home PC, run the program.
HelloNNNewman has offered up some clean instructions from here that make this process a bit more simple to understand (I've edited them just a hair, thanks helloNNNewman!):
1: You are going to be connecting your device to your computer using the USB cable. You must connect your device directly to your computer, not through a USB hub or other intermediate device. Prepare for this step but do NOT plug the touchpad into the computer just yet.
2: Now the tricky part. Hold the Volume Up button on the device and insert the USB cable into your computer, and the other end into your touchpad. After the large USB symbol appears on your touchpad screen, let go of the Volume Up button. If you see the HP logo instead of the large USB symbol, you may have let go of the Volume Up button prematurely. If this occurred , wait until your device boots up, shut down your device and then repeat step
3: Windows will find your device and may offer to install two different drivers.
4: When asked to install drivers of OMAP, select No, not at this time.
5: When asked to install drivers for Palm Novacom (bootie), select Yes and let the drivers install. This may take a while. Once the drivers have been installed, the Next button will become available in webOS Doctor.
6: Click Next.
7: Do not disconnect your device from the computer during the update process.
8: When the Reset Complete screen appears, click Done.
9: Wait a few minutes for your device to reset.
10: You're done!
Some troubleshooting if things aren't working correctly (taken straight from palm):
If the Next button remains unavailable, it may be because your device was disconnected from your computer during the driver installation process. In this circumstance, Windows cannot communicate with your device to install the drivers until you clear the driver installation state.
To clear the driver state, do the following:
On your computer, right-click My Computer and click Properties.
Click the Hardware tab, and click Device Manager.
On the Device Manager list, locate the item displaying a yellow question mark and/or exclamation point.
Right-click that item, and click Uninstall.
Click OK to uninstall the device from the system. The driver state is now cleared, and your device no longer appears in the list.
Run webOS Doctor again, connecting your device to your computer only when prompted.
Hope this helps.