I have the same problem with zenfone. It vibrate when I plugged in the charger and drain out more than it charge. Hold the phone upright, usb female on phone face floor. Spray a light of electronic cleaner to clean the usb female inside at least 2 times, block dry and leave for 5 mins. Spray the usb cable male also and blow dry for 5 mins. Connect it. It works for me after 1 day of trying switching usb cables and chargers. The usb female contact is has dirt on it
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I have the same problem with zenfone. It vibrate when I plugged in the charger and drain out more than it charge. Hold the phone upright, usb female on phone face floor. Spray electronic cleaner to clean the usb female inside at least 2 times, blow dry and leave for 5 mins. Spray the usb cable male also and blow dry for 5 mins. It works for me after 1 day of trying switching usb cables and chargers. The usb female contact is has dirt on it. Good luck
I have the same problem with zenfone. It vibrate when I plugged in the charger and drain out more than it charge. Hold the phone upright, usb female on phone face floor. Spray a light of electronic cleaner to clean the usb female inside at least 2 times, block dry and leave for 5 mins. Spray the usb cable male also and blow dry for 5 mins. Connect it. It works for me after 1 day of trying switching usb cables and chargers. The usb female contact is has dirt on it