Someone came across Samsung button repairs, there is a Samsung gt-c3530 device, with a new battery consumes from it and without batteries from 0.090 to 0.050, when checking how many shchups where the battery is inserted, jumps from 5 to 2.7 constantly, on the connector 5v is, but there is a failure with another cord, it turns off and the consumption and charging, I think, cleaned the connector with gasoline. The phone takes a long time to charge.