Galaxy S5 charges very slow?
Added (1). I'm using the cable and the plug that came with my phone. Usually, it only takes my phone to charge from 0-100% in under 2 hours. It has always been that way until recently, I've noticed the phone takes around 6 hours to charge completely. That's roughly 3-4 minutes per 1%. I've updated my phone to 5.1.1 and I'm guessing that's the reason why it takes much longer now. But even if I power off my phone, it still charges very slow.
Added (2). What might be the cause and what can you advice me to do?
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Galaxy S5 charges very slow?