更换 iPhone 4S 的电池

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Battery Screws

Remove these two screws that are securing the battery connector to the Logic Board.
Beware of unscrewing the battery connector, as your screwdriver does have the possibility to slip and pierce the battery.
For the bottom screws, it is recommended that you use a 1.5 mm screw bit, and a 1.7 mm for the top screw.

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