Hello everyone, I have a similar problem, the g4 phone takes a long time to charge, it was not like that before - 1.5 to 2 hours and from 20% to 100% charged, now it's even 4-5 hours. I used to use it with the charging turned on, now the battery level drops when the charging is turned on, and not in movies but browsing the net. The "ampere" program shows miracles from 20 to even 2300 mA. I have a KEWEISI usb meter that shows max 0.64A, interestingly: when I connect the cable to the phone and plug it into the socket, the meter shows 0.2A and when I first connect to the socket and then to the phone, the meter shows about 1A, previously it showed over 1.2- 1.6A. I changed the cable to the 1A charger cable but the same. As if that was not enough, the battery flies when using the browser. Maybe you have any ideas?