How to Change an iPhone LCD / Screen (Beginner Tutorial)
This tutorial gives you a general, model-agnostic overview of how to replace an iPhone screen. Exact steps and screw positions can be different per model, so always combine this guide with a detailed model-specific manual or video.
Important: Screen replacements can void warranties and carry a risk of permanent damage if done incorrectly. Work on your own devices or with clear agreements, and always follow local regulations and official documentation where available.
1. Before you start
Do not rush into your first iPhone screen replacement. Spend a few minutes preparing everything so you can work calmly and avoid mistakes.
Check if the repair makes sense
- Confirm the device still powers on (vibration, sounds, backlight, notification LED).
- Check if there are other serious issues (bent frame, heavy water damage, missing screws).
- Verify that the replacement screen is correct for the exact iPhone model.
Backup & data
- Ask the owner to make a backup (iCloud or computer) before you touch the device.
- Explain that data loss is always a risk and you cannot guarantee 100% recovery.
- Make sure โFind My iPhoneโ and locks are documented so you can test after the repair.
2. Tools and parts you will need
Tools (basic kit)
- Precision screwdriver set (Pentalobe, Phillips, Tri-point/Y depending on model)
- Plastic opening picks and a plastic spudger
- Small suction cup or opening tool
- ESD-safe tweezers
- ESD mat and wrist strap (recommended)
- Magnetic screw mat or organiser
- Good lighting and optionally a magnifying lamp
Parts & supplies
- Compatible replacement screen (LCD/OLED assembly) for the exact iPhone model
- New frame adhesive (for water-resistant models)
- Isopropyl alcohol (IPA) and lint-free wipes for cleaning
- Optional: low heat source for softening adhesive (heating mat or controlled hot air)
3. Preparation and opening the iPhone
- Power off the iPhone completely. Do not start the repair with the phone on.
- Remove the SIM tray. This can help avoid damage and makes some models easier to open.
- Remove the bottom Pentalobe screws near the charging port. Note their length and side.
- Apply gentle heat around the edges (especially on water-resistant models) to soften the adhesive. Do not overheat โ moderate warmth is enough.
- Place the suction cup near the bottom edge of the screen, above the home button area (on models that have it) or slightly above the bottom edge on newer models.
- Lift slightly with the suction cup and insert a plastic pick between the frame and the screen assembly.
- Slide the pick carefully around the edges, cutting the adhesive. Use several picks if needed. Do not insert the tool too deep; you only want to separate the adhesive, not cut cables.
- Gently hinge the screen open on the side used by your specific model (left, right or top, depending on the iPhone generation). Never pull the display away before disconnecting flex cables.
Tip: Check a model-specific guide for the correct opening direction and the exact location of flex cables. Pulling the screen in the wrong direction can instantly tear the cables.
4. Disconnecting the battery and screen flex cables
The next step is to disconnect the battery and the screen flex cables under the metal shields. The layout is slightly different per model, but the logic is always similar.
Remove shields
- Identify the screw bracket that covers the battery and display connectors.
- Remove the screws carefully and place them on your screw mat in their exact pattern.
- Lift the metal shield and set it aside.
Disconnect the battery first
- Use a plastic spudger to gently lift the battery connector from its socket.
- Never use metal tools directly on the connector or board.
- Confirm the phone cannot power on anymore before proceeding.
Disconnect screen-related flex cables
- Disconnect the display, touch and front sensor flex cables one by one with a plastic tool.
- On some models (e.g. with Face ID or home button) there are additional cables โ follow a model-specific guide.
- Once all connectors are disconnected, you can separate the old screen from the body.
5. Transferring small parts to the new screen
Many iPhone screens do not come with all the small parts pre-installed. You may have to transfer:
- Ear speaker and front sensor assembly
- Front camera module
- Home button (on models that have one)
- Metal plates, brackets and rubber seals
Handle Face ID and home button with care
- On Face ID models, the original sensor assembly is paired to the device. Damaging or replacing it can permanently break Face ID.
- On Touch ID models, the home button / Touch ID sensor is also paired to the board. You must transfer the original part and avoid damage.
- Work slowly and follow model-specific instructions precisely in these areas.
Clean and prepare
- Remove old adhesive and dirt from brackets before installing them on the new screen.
- Use isopropyl alcohol and lint-free wipes sparingly โ do not flood connectors with liquid.
- Check that all screw holes line up correctly and no cables are pinched under plates.
6. Installing the new screen and reassembly
- Connect screen flex cables to the board, pressing gently until each connector clicks into place. Never force a connector that is misaligned.
- Reconnect the battery connector only after all display cables are connected.
- Position the metal shields back over the connectors and reinstall the screws in their original locations.
- Perform a quick test before fully closing the device:
- Power on the phone.
- Check basic touch response and brightness.
- Open the camera app and test front and rear cameras.
- If everything looks good, power the device off again and disconnect the battery briefly if needed while you prepare the frame adhesive.
- Install new adhesive around the frame (on water-resistant models) following the manufacturer pattern as closely as possible.
- Close the screen gently, aligning the top edge first (or as required for the model), then press around the edges to seal the adhesive.
- Reinstall the bottom Pentalobe screws and clean the screen and housing.
7. Final testing checklist
Before you return the device, complete a basic but systematic test:
Screen and touch
- Full touch response across the entire screen.
- No dead zones or ghost touches.
- No strange lines, spots or flickering.
- Auto-brightness works (where applicable).
Sensors and Face ID / Touch ID
- Proximity sensor works during calls (screen turns off near the ear).
- Front camera and ear speaker work normally.
- Face ID or Touch ID still works if it was working before the repair.
General functions
- Device charges correctly.
- Wi-Fi, Bluetooth and mobile signal look normal.
- Volume buttons, mute switch and power button work.
Cosmetic check
- No visible gaps between screen and frame.
- No dust or fingerprints under the glass.
- No leftover adhesive sticking out of the frame.
8. Common beginner mistakes & next steps
Common mistakes
- Forgetting to disconnect the battery before unplugging or plugging display cables.
- Using metal tools around the battery or connectors and causing shorts or marks.
- Mixing screws and putting a long screw where a short one should go (this can damage the board = โlong screw damageโ).
- Pulling the screen in the wrong direction and tearing flex cables.
Next steps for your learning path
- Practise this screen replacement process on several devices with similar designs.
- Document how long each repair takes and where you lose time.
- After a few successful jobs, you can move to slightly more complex models and issues.