Replacing the back cover

1. Turn your iPhone off completely to avoid damaging it during the repair. Press the standby button for about three seconds until the slider appears.
2. Wipe it from left to right. Now your iPhone will shut down completely, which can take about ten seconds.

1. You need a pentalobe screwdriver to open the iPhone 6s.
2. Remove the two pentalobe screws at the bottom of the enclosure. They are located to the right and left of the Lightning connector. Put the screws in the same container.
   2 x 3.8 mm pentalobe screw

1. Put your iPhone 6s on a soft, clean surface to avoid scratching the back.
2. To lift the front panel, you need a suction cup, a hard plastic pick and a heat gun. If the screen is severely cracked, cover all of it with packing tape before you continue.
3. The screen is lightly glued to the frame. Use a heat gun to heat the outer edges of the display to about 60°C (140°F).
4. Place the suction cup over the Home button (if possible) or next to it. While lifting the screen with the suction cup, insert the hard plastic pick between the aluminum frame and the display frame and press down the aluminum frame. Also use the hard plastic pick to raise the screen. This usually takes several attempts.
5. As soon as you can lift the screen a few millimeters, you have to carefully work your way around the outside until it’s loosened on both sides.
   If necessary, heat the outer edges of the display a few times.
   

1. Use a Phillips screwdriver to remove the Phillips screws on the battery connector. Then lift the cover. Put all the parts in the same container.
   1 x 2.2 mm Phillips screw
   1 x 2.9 mm Phillips screw
2. Now carefully lift the battery connector by inserting the ESD spudger slightly below the connector. If you don’t have a spudger, you can also try using your fingernail.

1. First remove the four Phillips screws from the silver cover. Put the screws in the same container. Then lift the cover to remove it.
   3 x 1.3 mm Phillips screw
   1 x 2.9 mm Phillips screw
2. Disconnect the following three overlapping connectors in the order shown below. Be very careful. Carefully place the pointed tip of the spudger below the contact and lift it up.
   Front camera/sensor/earpiece/ambient microphone
   Touch ID cable
   Display

1. Unscrew the two screws that hold the Taptic Engine in place.
   2 x 1.5 mm Phillips screw
   
2. Now remove the Taptic Engine.

1. The battery is attached to the enclosure by two adhesive strips. Use a pair of tweezers or a laboratory spatula to detach them.
2. Now pull the adhesive strips off to one side very slowly. Hold the adhesive strips as flat as possible at the level of the iPhone.
3. Now simply remove the battery.

1. Disconnect the connectors for the Lightning connector and the antenna cable from the logic board using the pointed tip of the spudger.

1. Remove the black sticker next to the Lightning connector. There’s another Phillips screw below it.
2. Now remove the following five Phillips screws that hold the speaker in place. Put the screws in different containers so you can easily identify them later.
   2 x 2.6 mm Phillips screw
   2 x 2.3 mm Phillips screw
   1 x 3.0 mm Phillips screw
3. Carefully pull the antenna cable to the side.
4. Now you can remove the speaker.

1. Now remove the following eight Phillips screws. Put the screws in different containers so you can easily identify them later.
   2 x 3.0 mm Phillips screw
   1 x 3.6 mm Phillips screw
   2 x 1.4 mm Phillips screw
   2 x 1.8 mm Phillips screw
   1 x 3.0 mm Phillips screw

1. First remove the little black piece of plastic next to the audio port.
2. Insert the laboratory spatula below the ribbon cable and carefully detach it from the base. The cable is only glued in place at the point where the speaker was. A little hot air can make the ribbon cable easier to detach.
3. Use the spatula or spudger to loosen the headphone jack, the Lightning connector and the two gold microphones.
4. Carefully remove the ribbon cable using your fingers or the tweezers.

1. Unscrew the two Phillips screws from the camera cover.
   1 x 2.0 mm Phillips screw
   1 x 1.6 mm Phillips screw
2. Disconnect the camera connector by placing the spudger very slightly below the contact and lifting it up.
3. Now remove the camera.
   The silver cover is lightly glued to the camera.
   

1. First remove the two Phillips screws from the silver cover. Put everything in the same container.
   2 x 2.3 mm Phillips screw
2. Then lift the cover to remove it.

1. First remove the five Phillips screws from the Wi-Fi cover. Put the screws in the same container.
   2 x 2.1 mm Phillips screw
   2 x 1.3 mm Phillips screw
   1 x 2.3 mm Phillips screw
2. Then lift the cover to remove it.
   

1. You can use the SIM Tool or a paperclip to remove the SIM card tray. Press the SIM Tool into the small hole in the SIM card tray to remove it.

1. Now unscrew all six screws that hold the logic board in place.
   1 x 2.3 mm hex screw
   2 x 1.3 mm Phillips screw
   2 x 1.8 mm Phillips screw
   1 x 2.5 mm Phillips screw
2. Take out the little antenna cable.
3. Now you can carefully remove the logic board by hand.

1. Remove the longer black antenna cable. It’s attached to the side of the back cover.

1. First remove the Phillips screw from the cover.
   1 x 1.2 mm Phillips screw
2. Then lift the cover to remove it.

1. Remove the five Phillips screws that hold the standby/volume control cable in place using a Phillips screwdriver.
   2 x 2.2 mm Phillips screw
   2 x 2.5 mm Phillips screw
   1 x 1.9 mm Phillips screw
2. If you heat the cable for a little while, it’s easier to remove from the back cover.
3. Insert the laboratory spatula below the ribbon cable and carefully detach it from the base.
4. Now you can remove the cable.

1. Each of the three retaining brackets is secured with two Phillips screws. Remove them. Put the screws in the same container.
   6 x 1.8 mm Phillips screw
2. Transfer all the other small parts that aren’t preinstalled in the new back cover.

1. Now put the standby/volume control cable in the original position and screw it in place with the five Phillips screws.
   2 x 2.2 mm Phillips screw
   2 x 2.5 mm Phillips screw
   1 x 1.9 mm Phillips screw
Make sure the cable is lying flat and not bent.
2. After tightening the screws, check how sensitive the buttons are to pressure and adjust the screws as necessary.

1. Now attach the cover and screw it in place.
   1 x 1.2 mm Phillips screw

1. Put the black antenna cable back in its original position.
   Make sure the cable’s positioned properly in the plastic guide.
   

1. Put the logic board back where it was originally.
2. Now reconnect the contacts for the standby/volume cable set and the antenna cable.
3. Install the little antenna cable.
4. Fasten it with the five Phillips screws again.
1 x 2.3 mm hex screw
2 x 1.3 mm Phillips screw
2 x 1.8 mm Phillips screw
1 x 2.5 mm Phillips screw

Now slide the SIM card tray into the appropriate opening.

1. Now install the Wi-Fi antenna and screw it in place.
   2 x 2.1 mm Phillips screw
   2 x 1.3 mm Phillips screw
   1 x 2.3 mm Phillips screw

1. Attach the connecter to the board.
2. Now attach the silver cover and screw it in place.
   2 x 2.3 mm Phillips screw
   

1. Put the camera back in its original position and connect the camera’s connection cable.
2. Now install the camera cover and screw it in place. It may still be on the camera.
1 x 2.0 mm Phillips screw
1 x 1.6 mm Phillips screw

1. Now insert the small black piece of plastic over the microphone again.
2. Then screw in all eight screws that attach the Lightning connector again.
   2 x 3.0 mm Phillips screw
   1 x 3.6 mm Phillips screw
   2 x 1.4 mm Phillips screw
   2 x 1.8 mm Phillips screw
   1 x 3.0 mm Phillips screw

1. Put the new speaker in the original position.
2. Make sure that the antenna cable with the little metal ring is installed properly on the speaker, and put the silver contact point back in the original position.
3. Now you can fasten the Phillips screws again.
2 x 2.6 mm Phillips screw
2 x 2.3 mm Phillips screw
1 x 3.0 mm Phillips screw
4. Now put the antenna cable’s black sticker back on the speaker.

1. Reconnect the connectors for the antenna and the Lightning connector.

1. Now put the battery back in the iPhone and connect the connector.

1. Put the Taptic Engine back where it was originally.
2. Fasten the Taptic Engine with the screws again.
   2 x 1.5 mm Phillips screw

1. Reconnect the connectors. Connecting the display connector generally takes a few tries. Be very careful to avoid bending the connector.
   Front camera/sensor/earpiece/ambient microphone
   Touch ID cable
   Display
2. Start your iPhone as soon as the connectors are securely attached. Check the function of the LCD, touchscreen, proximity sensor, front camera and earpiece.
   If the display connectors aren’t connected properly, stripes will appear on the display or parts of the touchscreen won’t work.
   
3. Now install the cover and screw it in place.
   3 x 1.3 mm Phillips screw
   1 x 2.9 mm Phillips screw

1. Connect the battery connector.
2. Put on the silver cover and screw it in place.
   1 x 2,9 mm Phillips-Schraube
   1 x 2,2 mm Phillips-Schraube

1. Then carefully fold down the screen. Make sure that the edge on the upper part of the screen where the cables are clicks into place properly. Now carefully push the screen on toward the Home button until it is properly installed in the frame.

1. Now screw in the two pentalobe screws at the bottom of the enclosure.
   2 x 3.8 mm pentalobe screw

When the battery is removed from the device, the iPhone loses the time and sets itself to 1:00 a.m. on 1/1/1970. You could have trouble connecting to the cellular network if the time isn’t set.

After a repair, complete the following steps:

1. Synchronize your iPhone with iTunes or connect to a WLAN network and wait until the time is set.
2. Remove the SIM tray with the SIM card and reinsert it.
3. Activate airplane mode on the device and then deactivate airplane mode.