iPhone 4S Battery Replacement

Prior to disassembling your iPhone, make sure to turn it off.

Two 3.6 mm Pentalobe screws next to the dock connector need to be removed

While assembling the phone again, we suggest you to replace the 5-point screws with equivalent Phillips screws.

The 5-Point Screwdriver is meant to be used only once, as it may strip the screws.

Press the back panel and push it towards the top edge of the iPhone.

Back panel will move about 2 mm.

Separate the back panel from the back of the iPhone, and make sure not to damage the plastic clips fixed to the back panel.

Remove the back panel from the iPhone.

These screws securing the battery connector to the logic board need to be carefully removed:

One 1.7 mm Phillips screw

One 1.5 mm Phillips screw

With a help of plastic opening tool, you need to pull the pressure contact which is positioned below the battery connector.

When the pressure contact is being reinstalled, it needs to be cleaned with a degreaser such as windex or isopropyl alcohol. The natural oils on your fingers may accidentally create wireless interference.

Carefully separate the battery connector from its socket on the logic board by using the edge of a plastic opening tool.

Make sure only to raise the battery connector and not the connector on the logic board. If you push the logic board connector, it may happen to completely break the connector.

Place the edge of a plastic opening tool between the battery and the outer case close to the lower left corner of the iPhone.

Move the plastic opening tool along the right edge of the battery and gently push at several points to entirely separate it from the adhesive securing it to the outer case.

Exposed clear plastic pull tab will allow you to peel the battery off the adhesive securing it to the iPhone.

Remove the battery.