I have an old iPhone 3GS running iOS 4.3.3. (It is jailbroken and unlocked.)

The problem is that I am no longer able to get the phone recognized by any computer. iTunes won't see it. No software that I've tried will see the phone when I plug it into any computer. (I've tried multiple machines, including various PCs and MACs. And of course I've tried multiple different data cables.)

So... I am stuck with a phone full of photos and data that I can't "see" or download to my computer.

Since I'm not able to get the phone to work with any computer using a direct cable connection, I wonder if it's possible to connect it using wifi.

Does anyone know of a "sync" or "backup" app that will work over wifi with an Iphone 3GS running iOS 4.3?