HI! I have bough a HP Jornada 540 long time ago .No I have the replacement of the battery . Question is how to change the battery . After we change the battery , all our installed program will be deleted ?? Need some advice from the expert for th procedure replacement of the battery ./ Thank in advance Sauphear / Cambodia

hp.com
or google it?
nobody on earth uses XP nor palm pads now.
it is now forgotten. and XP is virus magnet.
that battery is no good too. now.

If you do a new, clean install of XP in 2018, one would be missing hundreds of updates from Microsoft that would be very hard if not impossible to get. Some of those updates might apply to software that you want to use in conjunction with Windows XP. And if it is an older PC, you might not be able to find driver support for the particular make/model, and XP might not have the drivers you need. How many times have you heard someone say, "I just reinstalled XP, but now I am missing drivers?"

This could be part of your trouble, because even if your XP updated all the way up to April 2014, you could still be missing HP updates provided by HP/Microsoft through Windows Update.

Since Microsoft has not supported XP since April 2014, I would recommend not using it anymore in 2018.

This error is a communication problem between your computer and the Jornada. Try these solutions:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bpia2302&cc=us&lc=en&dlc=en&product=61677

Has anything changed that caused the problem, eg, installing new hardware, using a different cable to sync the Jornada?

No, sorry, the Jornada 540 does not have Pocket Access on it. The Jornada 720 does, however...

As best as I reemember there is no way to do it as the OS and apps are burned into ROM. The 568 was the only Jornada that could be software updated.

Sorry, the OS on the Jornada 540 is in ROM and cannot be changed.

Only a hint. Did you check the small print via the downloads for Pocket PC on the Microsoft web pages? If you download from the regular OS pages they don't mention that certain Pocket PC generations are not supported. I noticed this but only on Media Player downloads fom the pocket PC pages but it takes time to find this more detailed info. http://www.microsoft.com/windowsmobile/resources/downloads/pocketpc/defau lt.mspx

First I'd try a hard reset (tiny red button at the back), if that doesn't help, it is likely to be the battery.

The Jornada 540 should have come with Outlook 2000. It works fine in Windows XP. When you Sync your computer and Jornada 560, the contact information should transfer from one to the other until both have the same contact information. Under the Tools pulldown on Activesync, select Options. Sync Options allows you to sync your Contacts by checking the box next to it. The next time you sync, all of your contacts from your 560 will be in your Outlook. When you get your battery replaced, just sync again and all of the contacts in your Outlook should transfer back to your 560. The other option is to get a Compact Flash memory card and backup your info onto that. Its much easier. Simply restore your info from your memory card when the battery is replaced. Hope that helped you.

Sorry, the Jornada 540 has the OS in ROM and is not upgradable. Additionally, the 540 uses the SH3 processor which Microsoft does not support in the more recent versions of the OS.