Computer won't detect my iPhone 4.

All by which the problem is caused is bcuz of ur iPhone driver. It is not installed correctly in ur pc. U can do one thing. Go in my computer properties, Device manager. U will definitly find ur iphone with a mark their. (do this while ur iphn is connected to pc) then open tht, and select update drivers/reinstall drivers. It will automatically install drivers from internet and then ur iphone will be shown in iTunes and pc as well.

If this doesnot work out, tryna re install ur windows, if the opt. 1 doesnt works, this one will definitly work 🙂

Well , not really,

when i plug in another iphone 4 it finds it without a problem.

And i tested it on pc/mac of friends with iphone and they don't have a problem with their phones.

So i'm thinking it s about the phone and not the PC or software on it.

I have a similar issue i'm using an iphone4s it was working fine till Sunday I tried plugging in my iphone the day before yesterday and it woudn't detect on my pc it does nothing it only charges and my PC doesn't even make the pop up down when a USB is plugged in. I have checked everything in device manger portable devices don't show i'm using windows XP when I browse through usb controllers in device manger it doesn't show anything related to apple or iphone whatsoever. So is there any possible fix for my problem.

I have the same problem now.

Did you fix it?

Fully un-install iTunes and then re-install it from the Apple website. That should refresh the iPhone driver

In the end, i brought it back to the store. And after 2 weeks i got a new one.

I guess there was a problem with the pins in the dock , but i m not sure...

good luck