Charging is not supported with this accessory? (iPhone 3GS)?

Every time when I charge my phone, it comes up with a warning sign and it says "Charging is not supported with this accessory." I'm not sure how it happened but it occurred way back 5 months ago but it isn't as bad as it is now because now every time I charge it either comes up blank and doesn't charge or it comes up with the warning sign then it suddenly charges but goes back to its original state and doesn't charge. I really don't know what's happening with it, help? D

Your charging cable is faulty, you should buy a new one, either a cheap one from ebay, or goto the apple shop.

You don't need the whole charging kit (plug + cable) you just need the cable.

On ebay there might be some cheaply made ones so avoid those because you will get the same problem.

Find good ones, look for company made ones like iLuv etc

Don't worry. It's like that. It only a says that when it's from apple but it doesn't matter as it's just telling the user incase the user thot it was apple. But don't worry it's nothing I have that too but not much of a deal