iPhone 6s Battery Replacement

Power off your iPhone before beginning disassembly.

Remove the two 3.4 mm P2 Pentalobe screws on the bottom edge of the iPhone, next to the Lightning connector.

Optionally, apply mild heat to the lower edge of the iPhone using an iOpener or hair dryer for about a minute.

• Heat softens the adhesive securing the display, making it easier to open.

Apply a suction cup to the lower left corner of the display assembly.

• Take care not to place the suction cup over the home button.

Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case.

• Take your time and apply firm, constant force. The display assembly is a much tighter fit than most devices and is held down with adhesive.

Place the flat edge of a spudger into the gap between the screen and rear case, directly above the headphone jack.

Twist the spudger to widen the gap between the front panel assembly and the rest of the phone.

Insert the flat end of the spudger on the left side of the phone, between the display assembly and rear case.

Slide the spudger up the side of the phone to separate the adhesive and pop the clips free.

Remove the spudger and reinsert it on the bottom edge, where you pried the phone open.

Slide the spudger to the right, along the bottom edge of the phone.

Slide the spudger up the right side to continue separating the adhesive and popping the display clips free from the iPhone.

Use the suction cup to open the display, breaking the last of the adhesive.

Pull up on the nub on the top side of the suction cup to remove it from the front panel.

Gently grasp the display assembly and lift it up to open the phone, using the clips at the top of the front panel as a hinge.

Open the display to about a 90º angle, and lean it against something to keep it propped up while you're working on the phone.

• Add a rubber band to keep the display securely in place while you work. This prevents undue strain on the display cables.
• In a pinch, you can use an unopened canned beverage to hold the display.

Remove two Phillips screws securing the battery connector bracket, of the following lengths:

• One 2.9 mm screw
• One 2.2 mm screw

Remove the battery connector bracket from the iPhone.

Use the point of a spudger to disconnect the battery connector by prying it straight up from the logic board.

Push the battery connector away from the logic board until it stays separated from its socket, so as to avoid any accidental connection to the battery while you work.

Remove the following four Phillips screws securing the display cable bracket:

• Three 1.2 mm screws
• One 2.8 mm screw

Remove the display cable bracket.

Use a spudger or a clean fingernail to disconnect the front camera flex cable by prying it straight up from its socket on the logic board.

Disconnect the digitizer cable by prying it straight up from its socket on the logic board.

Disconnect the display cable by prying it straight up from its socket on the logic board.

Remove the display assembly.

Use tweezers to peel back the tips of the two adhesive strips along the bottom edge of the battery.

• Use your fingers or blunt tweezers. Be careful when working near the battery; puncturing a lithium-ion battery can release dangerous chemicals and/or cause a fire.

Slowly pull one battery adhesive tab away from the battery, toward the bottom of the iPhone.

• To avoid tearing the adhesive strip, be careful not to snag it against the battery or lower components.
• 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.
• The strip will stretch to many times its original length. Continue pulling and re-grab the strip near the battery if necessary.

Repeat for the second strip.

• Hold down the battery as you remove the second strip, or the strip may fling the battery when it separates from the case.

If you removed both adhesive strips successfully, skip the next step.

If you successfully removed both adhesive strips, move on to the next step. Otherwise, you will need to pry the battery from the rear case.

Prepare an iOpener and apply it to the back of the rear case, directly over the battery. Alternatively, you can apply heat using a heat gun or hair dryer.

After about a minute, flip the phone over and use a plastic card to break up any remaining adhesive behind the battery.

• Do not insert your card in the area between the volume down (-) button and the top edge of the battery, or you may damage the volume control cable lying underneath.
• Do not pry against the logic board or you may damage the phone.
• Keep the card as flat as possible to avoid bending the battery, which may damage it and cause it to release dangerous chemicals or catch fire. Do not use any sharp tools to pry at 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.