Before disassembling the volume/power button cable on the iPhone 8, you have to turn it off.
Press the power button on the right side of the phone for a few seconds.
Then slide to the right to power off.
With a pentalobe screwdriver in the standard tool kit, remove the two screws at the bottom of the iPhone.
Those screws are located on each side of the dock connector.
They secure the bottom part of the iPhone 8 frame.
With the hair dryer, heat up the edges of the iPhone 8.
This will soften the seal between the screen and the frame.
Note : Heat up a little bit more the top part of the screen to make it easier to remove.
Insert an opening pick in the bottom left part of the phone and slide it around the phone.
Repeat that step on the left and right side of the phone.
Grab and gently lift the screen.
Gently pull the screen back.
Open the screen as you would open a book. Careful not to tear the three cables linked to the logic board.
With the cruciform screwdriver, remove the four screws securing the LCD screen bracket.
Grab the connectors bracket and remove it
With the nylon spudger, disconnect the battery.
Unlock the LCD/Touch screen cable.
Keep the nylon spudger and disconnect the Force Touch sensor and home button cable.
With a cruciform screwdriver, remove the three screws circled in red securing the front camera/earpiece speaker/proximity sensor cable connectors.
Grab that bracket with a pair of tweezers and remove it.
Disconnect the front camera/earpiece speaker/proximity sensor with the nylon spudger.
The screen of your iPhone 8 is now disassembled.
The battery of the iPhone 8 is secured by four adhesive tapes (in red on the picture).
Peel off the first tape with the nylon spudger.
Gently pull on the tape.
Do the same for the other adhesive tapes.
Use the flat screwdriver and remove the big screw circld in red (picture 1).
Keep using the cruciform screwdriver and remove the second screw circled in red (picture 2)
Grab the rear camera bracket and remove it.
Disconnect the rear camera cable with the nylon spudger.
Pry on the right side of the rear camera with the spudger.
Remove it with a pair of tweezers.
The rear camera of the iPhone 8 is now disassembled.
With a cruciform screwdriver, remove the two screws circled in red securing the WiFi antenna.
Disconnect the WiFi antenna with the nylon spudger.
Peel and remove it with the spudger.
The iPhone 8 WiFi antenna is now disassembled.
Remove the big screw circled in red (picture 2) with a flat screwdriver.
Then remove the cruciform screw circled in red (picture 2).
Now remove the two screws securing the power cable bracket (picture 3).
Then finish by removing the four screws circled in red that secure the GPS antenna (picture 4).
Grab the GPS antenna and remove it with a pair of tweezers.
Remove the two screws circled in red on the picture with a cruciform screwdriver..
Grab the bracket and remove it.
With the nylon spudger, disconnect the power/volume button cable and the NFC cable.
Disconnect the two cables with the nylon spudger : dock connector and GSM antenna.
With a flat screwdriver, remove the big screw circled in red securing the logic board.
Insert the SIM card eject tool in the hole and push to extract the tray.
Remove the SIM card tray.
Gently grab the logic board on the top and remove it.
The logic board of your iPhone 8 is now disassembled.
With the nylon spudger, gently pry on the battery and remove it.
Remove the three curciform screw located on the left side of the cable (picture 1).
Then remove the three curciform screws located on the right side of the cable (picture 2).
Then remove the big screw with the flat screwdriver (picture 3).
Those screws secure the volume/power buttons cable.
Grab the camera microphone seal with a pair of tweezers and remove it.
Take the cable off the frame near the volume button.
Start by peeling off the cable with the nylon spudger.
Careful not to damage anything!
Peel off the cable until the power button.
Grab the cable and remove it.
The volume/power button cable on your iPhone 8 is now disassembled.
You can replace it with a new one if needed.
To reassemble your iPhone 8 follow this guide in reverse order.
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