This cable, http://store.apple.com/us/product/MC748ZM/A?fnode=MTY1NDAzOQ which probably costs a little more than then "nice and cheap" one you got, will work on our iPhone.
Not all cables are created equal.
Hello, newbie so go easy
Right, recently I bought a nice and cheap component cable from eBay: http://www.ebay.co.uk/itm/RCA-AV-TV-USB-COMPONENT-CABLE-IPHONE-3G-IPOD-/270588106923?pt=UK_Computing_CablesConnectors_RL&hash=item3f004ed8ab
Received it and connected it to a 3G to find that nothing appeared on my TV. (the cable etc was connected up right, I checked everything). I then used Google to find I needed an App or two from Cydia to make a 3rd party cable work so I downloaded DisplayOut to my iPhone 3G. The iPhone screen appeared fine on my TV but there was constant flashing. By this I mean every few seconds the screen would flash to black for no reason and then would reappear a few seconds later.(the screen on the iPhone was fine at the time, that didn't flash, only the TV screen did)
I then downloaded DisplayOut on my sister's 3GS to find the EXACT same thing happened (the TV screen kept flashing) Just this week I discovered another app, TVOut Mirror 2 and deleted DisplayOut and downloaded that. The EXACT same thing happened.
I don't know what is wrong, I'm sure it's my cable as I've tried 2 iPhones and various Cydia apps but I'm not sure, is there an easy fix or an app that fixes everything?
Any help is welcomed