My iPhone 4 charger is acting weird

[ABCDEFGHIJKLMAO]

I have been using my iphone 4 home charger from day 1, and lately its been acting weird when i plug in my phone.
It says that it cannot charge my iphone because it is unsupported device:mad
It shows me ! With triangle on the screen!
Both my phone and charger is original product, and i dont know why its doing that. Is there problem with my phone or the charger??

 

[steve knight]

more of a chance it is your phone. or fuzz in the jack clean all of the lint out and see if it helps. though we got a phone replacement that gave that error sometimes then after awhile with every charger or plug.

 

[ryanaaaah]

it may probably the battery or the slot problem. but try another charger first

 

[mpossoff]

I get that message with my car charger sometimes.

 

[ABCDEFGHIJKLMAO]

still gives me the same message.....
guess i will have to take my charger and phone to apple store for warranty.

 

[LTMK]

the chip inside your plug maybe damanged .... you need a new one ...sorry

 

[MacBpro]

the chip inside your plug maybe damanged .... you need a new one ...sorry

agree ... even its original phone charger... it will break... sorry you need a new one

 

[MacNewbie03]

My AT&T car charger also makes this message appear on my phone. It used to work fine but here lately it doesn't. I got the charger when I ordered my phone in August 2010, I wonder if there is differnce between the iPhone 3 and the 4 as far as power draw? The phone charges fine when using the Apple wall charger or using my Mac to charge it.

 

[jekyoo]

had the same issue with my charger. i just went to apple and got it replaced under warranty, fixed the problem.