iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 iPhone 4 Battery Replacement Your iPhone 4 won't hold a charge? Replace the battery on your iPhone 4. Written By: Walter Galan This document was generated on 2022-08-02 08:34:01 AM (MST). © iFixit — CC BY-NC-SA www.iFixit.
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 INTRODUCTION Your iPhone 4 won't hold a charge? Replace the battery! Luckily, replacing the battery on the iPhone 4 requires minimal disassembly. If your battery is swollen, take appropriate precautions. For optimal performance, after completing this guide, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least two more hours. Then use your iPhone until it shuts off due to low battery.
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 Step 1 — Rear Panel Before you begin, discharge your iPhone battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured. Power off your iPhone before beginning disassembly. Your iPhone 4 rear cover may have either two #000 Phillips screws or Apple's 5-Point "Pentalobe" screws (second image).
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 Step 2 Push the rear panel toward the top edge of the iPhone. The panel will move about 2 mm. Step 3 Pinch the rear panel with your fingers and lift it away from the iPhone. Alternatively, use a Small Suction Cup . Be careful not to damage the plastic clips attached to the rear panel.
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 Step 4 — Battery Remove the single 2.5 mm Phillips screw securing the battery connector to the logic board. Some devices may have two screws, one of which holds down the contact pad which is located above the screw indicated in red in the photo. Step 5 Use a plastic opening tool to gently pry the battery connector up from its socket on the logic board.
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 Step 6 Use the clear plastic pull tab to gently lift the battery out of the iPhone. If the tab breaks before the battery is freed, apply a few drops of high concentration (over 90%) isopropyl alcohol under the edge of the battery. Wait about one minute for the alcohol solution to weaken the adhesive. Carefully slide a spudger under the battery tab to release the adhesive. Prying in other places may cause damage.
iPhone 4 Battery Replacement Guide ID: 3141 - Draft: 2022-06-26 Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing. To reassemble your device, follow the above steps in reverse order. Take your e-waste to an R2 or e-Stewards certified recycler. Repair didn’t go as planned? Check out our Answers community for troubleshooting help. This document was generated on 2022-08-02 08:34:01 AM (MST).
