My original version of windows CE on my PDA is version 2.0. But I have downloaded a newer version of windows ce2.2 from the web http://www.uniden.com/pda/downloads.html. Its manufacturer name is Uniden and model is Unipro PC100. Originally installed operating system is windows CE2.0. I want to upgrate my version form 2.0 to 2.2. But after upgrating process and synchronization process, it is upgrated on my desktop PC , NOT on my hand held PC.On my handheld PC, system version still shows V2.0 which is original version. I would like to know how to upgrate my H/PC's system form 2.0 to 2.2 I hope somebody would have a great idea about it.

Windows CE is not Software in the normal sense of the word. You can't go and buy a box from the shelf and install it like you would a dekstop or notebook pc. Windows CE is stored on a piece of hardware called a ROM chip. Inorder to upgrade the Operating System you have to replace this ROM chip with a new one that contains the update. If you are using Windows CE 2.0 at the moment you can further update your desktop software by downloading version 3.5 of the host & sync software (now called ActiveSync) from: http://www.microsoft.com/mobile/pocketpc/downloads/activesync35.asp As for the availability of a ROM upgrade chip you will have to contact the manufacturer for information. For reference. According to the web site you provided, your device is a Palm PC (P/PC) not a Handheld PC (H/PC)

Dear Finend, Thank you so much for you r reply.Actually I want to use some application or program,like internet browsing adn remote control purposes.So they need windows CEversion 2.2 or above. So I tried to find out my grater versons of windows CE2.2 fr, intenet.I can use pocket IE adn iBrowser,but only iBrowser work properly ,and I want to use yahoo messenger with my PDA and remote control program for PDA is available on the WEB.I want to play put it in and try.I donn't know what it is but on it's manual it is a Palm-Size PC and installed windows CE. So the upgrade version 2.2 available on its web side is for desktop syschronization purpose? let me know more tips about windows CE when you have time.... Thanks

You do not replace the chip to replace the OS. It's more like flashing the BIOS.

I have Windows CE 1.0 on my Auto PC and I would like to upgrade it to CE 2.0 or 3.0. Can anyone tell me what to do? Thanks.

I got a Nino 300 with WinCE v.2.1, how can I upgrade to more current version? Thanks,