We apply heat to the device to remove the battery cover. With the help of a heat gun, we apply 90 Celsius degrees. During 4 minutes. We are going to use a suction cup to open a hole. We introduce a metal opening tool. Furthermore, we use a plastic card to cut the adhesive, we remove the back cover.
Furthermore, we release the screws from the top of the device. Here we have the antenna to continue with the disassembly process. First, we have to remove the battery flex. Here we have the motherboard flex cable. Now we remove the screen connector to loosen the adhesive.
We use a contact cleaner or isopropyl alcohol. We remove the battery, we have finished the disassembly process. Now we return with the as assembly process. We have finished the ass assembly process. You.
Source : MovilOne Phone Repair