1. Replace the socket for charging the mobile phone, which may be unstable charging caused by poor contact of the socket;
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2, replace the charger head or data cable try, if the replacement charger can be charged, it means that the previous charger has a problem, change one on the line;
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3, clean up the dust of the mobile phone charging interface, if there is more dust inside will cause poor contact, use a needle to pick out the dust impurities inside;
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4, try to restore factory Settings, but to back up their own data;
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5, if the above method is not available, it will be sent to buy a mobile phone to repair, to detect whether the mobile phone has hardware failure.
The phone will disconnect when charging. Question 1; There's something wrong with the plug. It's loose.
2; There is a broken charging cable phenomenon, not disconnected, is virtual connection, with a touch to continue to charge. I suggest you change the cable.
3; The charger problem, the charger internal damage, it is recommended to change a new, not much money.
4; The problem of the mobile phone itself, some mobile phones have more years, the battery has been insufficient, looking at the full charge, just a use on the display of insufficient power. That would call for a new phone. I hope I can help you,