If the help of the heat gun. We apply 19 Celsius degrees. During four minutes we introduce a metal opening tool to loosen the adhesive. We use a plastic triangle opening tool. We remove the back cover, we release the screws of the middle frame, we checked the SIM tray and the micro CD tray very carefully. You need the middle frame.
First, we remove the battery flexed to continue the disassembly process. We release these two screws. Now we remove the flex. Here we have the connector of the screen, disconnect the double front camera. We release these two screws, lift gently the device's motherboard remove the charging flex, we return with the assembly process.
The phone is charging properly.
Source : MovilOne Phone Repair