원문 게시자: Mayur29 ,
I recently had the same problem where the OPT used to charge extremely slowly. One of the solution that worked for me : 1)Switch off the phone. 2)Press the power button and volume button simultaneously. 3)Now a screen will pop up. 4)Clear the cache memory. 5)Reboot the phone. That's all. The charging improved a lot. Hopefully this will work for others as well.