hey, so yesterday night my iphone 4 got plugged into charge but it came up with the fully charged symbol even though it was on 5%, i thought nothing of it so i let it drain then put it on to charge and it came up with the big battery and lightning bolt. i came back an hour later and this was still there so the battery had not charged past that point. i tried to plug it into my laptop to restore it but nothing happened and tried hard resetting it but it only came up with slide to power off. i restored it on the actual device and chose restore as a new phone, i did this but it said i need to connect it with itunes which i cant do and as soon as i take it off the wall charger it goes flat straight away, i downloaded the newest version of itunes and my iphone had the newest version of software but its still not working. please help! thank you