HTC one X cannot charge

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http://forums.androidcentral.com – Hello. I bought a HTC one X in China and send it to my GF who's in UK. But she constantly get charging problems. The problem is like this: 1) Can't charge at all using AC adapter if the battery is not empty. The battery bar just keep decreasing no matter whether you pluged the power line or not. (Faster with the line pluged). The only way to get it charged is to wait until the phone drain its battery and die. Then it charges again. 2) Battery can be charged with computer USB, but very very S..L..O..W. Maybe after hours and you get an 1% increase. 3) When using 1) the battery bar is aroud (HowTos)