LG G4 LCD and Digitizer Replacement
Replace the cracked/damaged LCD screen and digitizer assembly in your LG G4 smartphone.
- Use a pre-cut LG G4 adhesive strip or Tesa 61395 tape to secure the new screen.
Step 1 | Back Cover
Power down the phone.
- Locate the groove on the bottom left side of the device, then place a plastic opening tool inside.
- Gently pry up the rear cover.
Step 2
Locate the plastic opening tool and position it at the bottom edge of the battery.
- Lift upwards on the battery using the tool.
- Gently remove the battery from its compartment with your hands.
Step 3
- Remove the 11 Phillips #00 screws located at the back using a screwdriver.
Step 4
Remove all screws.
- Insert a plastic opening tool into the lower left corner.
- Lift the cover upwards firmly, then detach it by hand.
Step 5 | Motherboard
Remove the front-facing camera connector, rear-facing camera connector, and digitizer connector with a plastic spudger or opening tool.
- Try to move the rear-facing camera gently first, as it may be secured by two-sided tape.
- If the camera does not budge, use the spudger to carefully pry it from the frame.
Step 6
Use a plastic opening tool to carefully lift the motherboard, assisting with your fingers if necessary.
Step 7 | Screen Assembly
Apply a heat gun or iOpener to the auxiliary port to loosen the surrounding adhesive.
- Target the area around the port where it meets the plastic housing.
Step 8
Insert a nylon spudger into the auxiliary port and carefully pry upward to release it.
Step 9 | Other components
Careful removal required — damage to surrounding components is possible.
- Remove the vibration motor using a spudger.
- Transfer the removed vibration motor to the new display assembly.
- Repeat for the ear-speaker, removing it with a spudger.
- Remove the two rubber covers on either side of the ear-speaker and transfer them to the new display assembly.
Step 10 | LCD and Digitizer
Remove the digitizer ribbon cable's adhesive strip using a pair of tweezers.
Step 11
Insert the flat side of a nylon spudger under the digitizer ribbon cable.
- Use your fingers to gently pull the ribbon cable as you free it from the adhesive.
- If necessary, apply more heat to loosen the adhesive further.
Step 12
Apply gentle heat from a heat gun or an iOpener along the edges of the screen.
Step 13
Use a heavy-duty suction cup and firmly pull the screen away from the frame to create a small gap.
Do not apply excessive force, as there may be a thin strip of adhesive holding the screen in place.
If the screen is difficult to free, apply additional heat along the edges of the phone to aid removal.
Step 14
Insert a plastic opening pick into the gap between the screen and the plastic housing.
- Slide the plastic opening pick along the border of the screen to break any additional adhesive.
- Continue sliding until the screen assembly is completely free.
Step 15
- Remove the LCD screen & digitizer assembly.
Gently feed the digitizer ribbon cable through the frame, taking care not to damage it.