[SIZE][/COLOR]i have a samsung galaxy s2 need help

i have battery problems

i will not charge

i have done a factory rest
tried using the usb cable still no response
the phone has not been dropped on gone into water
tried to update it from kies air no update
i am running on android version 2.3.4

please can someone help me!!!!
i really like this phone!!!

also can email me with help shazzy_09@hotmail.co.uk