By Paige Reisman • Difficulty: Moderate
Use this guide to bring life back to your iPhone 7 with a new battery. If your battery is swollen, take appropriate precautions.
This guide instructs you to completely detach the display assembly; this is intended to prevent damage to the display cables. If you feel comfortable removing the battery without putting undue strain on the display cables, you can skip the steps for disconnecting the display.
For optimal performance after completing the guide, calibrate your newly installed battery: charge it to 100% and leave it on the charger for at least two more hours. Then use the phone until it shuts off due to low battery, and charge it uninterrupted back to 100%.
- Power off your iPhone before beginning disassembly.
- Remove the two 3.4 mm pentalobe screws on the bottom edge of the iPhone.
- Use a hairdryer or prepare an iOpener and apply it to the lower edge of the iPhone for about a minute in order to soften up the adhesive underneath.
- Attach a suction cup to the lower half of the display assembly, just above the home button.
- Pull up on the suction cup to create a small gap between the display assembly and the rear case.
- Insert the flat end of a spudger into the gap.
- Slide the spudger to the left along the lower edge of the iPhone.
- Twist the spudger to widen the gap between the display and rear case.
- Slide the spudger up the left side of the iPhone, starting at the lower edge and moving towards the volume control buttons and silent switch.
- Insert the flat edge of a spudger into the bottom right corner of the device.
- Twist the spudger to widen the gap between the display assembly and the rear case.
- Slide the flat end of the spudger up the right side of the phone to break up the adhesive holding the display in place.
- Pull up on the suction cup to lift up the display and open the iPhone.
- Pull up on the small nub on the suction cup to remove it from the front panel.
- Slide an opening pick along the top edge of the iPhone, between the rear case and front panel, to break up the remaining adhesive holding the screen in place.
- Pull the display assembly slightly away from the top edge of the phone to disengage the clips holding it to the rear case.
- Open the iPhone by swinging the display up from the left side, like the back cover of a book.
- Remove four tri-point Y000 screws securing the lower connector bracket, of the following lengths:
- Three 1.2 mm screws
- One 2.4 mm screw
- Remove the lower connector bracket.
- Use the point of a spudger to lift the battery connector out of its socket on the logic board.
- Use a spudger or a fingernail to disconnect the two lower display connectors by prying them straight up from their sockets on the logic board.
- Remove the two 1.3 mm Phillips screws securing the bracket over the front panel sensor assembly connector.
- Remove the bracket.
- Disconnect the front panel sensor assembly connector from its socket on the logic board.
- Remove the display assembly.
- Remove the two 1.9 mm Phillips screws securing the barometric vent to the rear case.
- Remove the vent.
- Use the flat end of a spudger to disconnect the Taptic Engine connector from its socket on the logic board.
- Remove the three 1.6 mm Phillips screws securing the Taptic Engine to the rear case.
- Remove the Taptic Engine.
- Use a pair of tweezers with blunt tips to peel back one of the adhesive strips on the lower edge of the battery.
- Use a pair of tweezers with blunt tips to peel back the other adhesive strip on the lower edge of the battery.
- Slowly pull one battery adhesive tab away from the battery, toward the bottom of the iPhone.
- Pull steadily, maintaining constant tension on the strip until it slips out from between the battery and the rear case. For best results, pull the strip at a 60º angle or less.
- Repeat the previous step for the second strip.
- If you removed both adhesive strips successfully, skip the next step.
- Otherwise, if either of the adhesive strips broke off underneath the battery and could not be retrieved, continue with the next step below.
- If any of the adhesive strips broke off and the battery remains stuck to the rear case, prepare an iOpener or use a hair dryer to heat the rear case directly behind the battery. It should be slightly too warm to touch comfortably.
- Flip the phone over and use a plastic card to break up any remaining adhesive behind the battery.
- Thread the floss or string behind the upper battery corners, bring the ends together, wrap them around a folded cloth, and pull evenly.
- Remove the battery from the rear case.
- Perform a force restart after reassembly. This can prevent several issues and simplify troubleshooting.
To reassemble your device, reapply the display adhesive and follow these instructions in reverse order. For optimal performance, calibrate your newly installed battery: charge it to 100% and leave it on the charger for at least two more hours. Then use the phone until it shuts off due to low battery, and charge it uninterrupted back to 100%.