To begin, we apply heat to the back of the terminal and with the help of a plastic pick we separate the contour of the battery cover until it is fully detached

Next we extract the thirteen Phillips type screws (PH # 00) that hold the intermediate housing once removed, we extract the sim tray from its housing

With the help of a fine tool we separate the intermediate housing from the screen

With a fine tool we disconnect the flex from the battery to avoid incidents

Next, we peel off the battery adhesive and gently pull upwards and we will notice how the battery is peeling off until we can extract it from its housing.