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[Q] HELP! Galaxy SII running out the battery with 40% charge

5th April 2014, 04:10 AM   |  #1  
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Hello guys I'm new here and would like some help with my Galaxy SII.
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The problem is this: I am using the CM11 ROM 4.4.2 (also happened with the official) and the battery on my phone just ends when it reaches 40%, the screen in a blink on and off and only back to work when I connect my charger, the screen showing 0% battery, thereafter, he usually carries up to 100% more then the same happens again in 40%.
I've tried to calibrate and reset the fuel gauge chip, but it still fails if anyone has an idea I would be grateful.
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Thanks in advance.
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Note:. If I unplug the charger with less than 40% while charging the phone normally functions to 0%.
5th April 2014, 05:55 AM   |  #2  
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Logical thinking required here...

*Replace battery.
*Replace charger.
*Replace USB board/port. KeithRoss39 has a guide in General (search for 'replace USB charger board' or similar) which has all the info you need to do it yourself cheaply/easily/quickly.

Doesn't really matter in which order you do these, it could be any one of them, and they all cost roughly the same amount of money, though I'd do it in that order.
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