We eject the sim tray and the micro SD tray 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 to loosen the adhesive. Furthermore, we use a plastic triangle opening tool.
Furthermore, we remove the back cover, we remove the following screws. Here we have the antenna. Now we lose the connector of the fingerprint sensor. Scanner touch ID 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 ass assembly process. We apply industrial adhesive glue depending on the color of the device. We have finished the assembly process.
Source : MovilOne Phone Repair