Can i use windows vista with my ipaq 3835 pocket pc and what is till the memory expandable upto

In order to sync any iPAQ with Windows Vista, you will need to download and install Windows Mobile Device Center 6.1 from http://www.microsoft.com/windowsmobile/en-us/downloads/microsoft/device-center-download.mspx.

Activesync will only work for XP Operating Systems and earlier.
Notes

• To find out whether your version of Windows Vista or Windows 7 is 32-bit or 64-bit, click Start, right-click Computer, and then click Properties. The version is listed after System Type.
• You can use Windows Mobile Device Center 6.1 only with phones running Windows Mobile 2003 or later. ActiveSync and Windows Mobile Device Center won’t work with Windows Embedded CE 4.2 or 5.0, Pocket PC 2002, or Smartphone 2002 devices. (To see which Windows Mobile operating system you’re using, and if your phone doesn’t have a touch screen, click Start > Settings > About. If your phone has a touch screen, click Start > Settings > System tab > About.) To sync content to any of these devices, you must use a USB or serial cable and your computer’s Internet connection and File Explorer.
• You must use Microsoft Outlook 2002, Outlook 2003, or Office Outlook 2007 to sync your e-mail, contacts, tasks, and notes from your computer.
• You must use a USB cable to connect your phone to your computer the first time you use Windows Mobile Device Center to sync.

Found driver online.

The 3835 did not have WiFi capability so you can't get online. Probably not worth messing with unless you're a real techie. I think there is a distro of Linux that can run on it if you want to play with that.

if there are any o.s. upgrades or rom upgrades, you should be able to locate on HP support. hope this helps

Hi. While holding power button, and pressing reset will do a hard reset to your PDA (reset the device to its factory default settings). So if your PDA is working well, don't do it. As for the syncronization with your Vista PC; Winodws XP uses the ActiveSync software for syncronization, and for Windows Vista, Microsoft developed a brand new syncronization software called "Windows Mobile Device Center". It can be downloaded here: (http://www.microsoft.com/windowsmobile/en-us/help/synchronize/device-center-download.mspx). When you download/install this software to your PC, you should be able to connect your PDA to your PC without any problem, and definitely without changing any OS in your PDA or PC. Hope this helps.

No, you do not need an upgrade. You'll need to be download only "Windows Mobile Device Center" to your Vista PC instead of ActiveSync. (ActiveSync is not compatible with Vista, instead Microsoft changed the software a bit called "Windows Mobile Device Center" and can be downloaded from Microsoft's website.) Your Vista PC should also recognize your ipaq PPC without needing any driver CD. I hope it helps.

i would say def. its the battery thats dead!
Did a quick search for batteries and found a lot and costs about 10-30$ for a battery
and some include a charger as well.
Worth spending if you gonna use it daily!

Your HP IPAQ has a SDIO expansions slot...

which is a new technology.

so will have to use an SDIO card ...
this is a secure digital IO card.
hope this will solve the problem

Yes, but you will need to download Windows Mobile Device Center - free from Microsoft,
which replaces ActiveSync
ActiveSync is not compatible with Vista

does the pda work fine otherwise just no light when the battery is supposed to be full?