Google Pixel 4 Power & Volume Flex Replacement Guide

If the power or volume buttons on your Google Pixel 4 are no longer responding correctly, the power and volume flex cable may need to be replaced. Accessing this flex cable requires significant internal disassembly, including removal of the back cover, brackets, front camera module, logic board, battery, and existing button flex.

In this guide, we’ll cover the Google Pixel 4 power and volume flex cable replacement process, from opening the phone and removing the faulty cable to installing the replacement and reassembling the device.

Repair Information

Repair Information	Details
Device	Google Pixel 4
Repair Type	Power & Volume Flex Cable Replacement
Repair Difficulty	★★★★☆
Estimated Time	Approximately 1–2 hours

Reasons for Repair

You may need to replace the Google Pixel 4 power and volume flex cable if you experience:

• The power button is not responding correctly
• The volume buttons are not working
• The power or volume buttons work intermittently
• One or more physical buttons have stopped responding
• The power and volume button flex cable is damaged

Important: This repair requires working around the battery, logic board, camera module, and several internal connectors. Work carefully and avoid excessive force, especially around flex cables and connectors.

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Before You Begin

Compatibility and Model Numbers

This repair guide based on Google Pixel 4

Model Numbers | G020M, G020I, GA01188-US, GA01187-US, GA01189-US, GA01191-US, GA01189-US

Tools Required

• Mobile phone heating pad or hairdryer/heat gun
• Plastic pry tool / card pry
• Suction cups
• Torx T3 screwdriver
• Torx T4 screwdriver
• Torx T5 screwdriver
• Tweezers (for connectors)
• B7000 glue or double-sided adhesive (for back cover)
• Rubber bands or bonding clips to secure the back cover

How to Find Tools and Parts

• Heat Mat / Heating Pad – https://amzn.to/3H0tHzJ
• Best Portable Heat Gun – https://amzn.to/4cZYnhL
• Clamps – https://amzn.to/3GYJT4w
• STREBITO 142 Piece Repair Tool Kit – https://amzn.to/3UO1jUx
• Stronger Suction Cup – https://amzn.to/3UVb6YR
• Silicone Work Repair Mat – https://amzn.to/4euW6fs
• Must Have Glue | Adhesive – https://amzn.to/4uxhKog
• Compatible Parts –
  • Battery –  https://amzn.to/4nGxS2N
  • Screen – https://amzn.to/3X7WHK5
  • Other Parts –  https://amzn.to/4oPpM90

Step 1: Open the Google Pixel 4

Begin by powering off the Google Pixel 4 before starting the repair.

Carefully open the device and remove the back cover to gain access to the internal components. Keep the removed parts and screws organized throughout the repair so everything can be returned to its original position.

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Step 2: Remove the Back Cover and Bracket

After opening the phone, remove the relevant bracket inside the device.

Work carefully while removing the bracket and set it aside with its screws. This provides access to additional internal components that need to be disconnected before reaching the power and volume flex cable.

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Step 3: Remove the Sensor Bracket

Next, remove the sensor bracket.

Carefully release the bracket and keep the removed hardware organized. Avoid damaging the components and flex cables located around this area.

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Step 4: Remove the Front Camera Module

The front camera module must be removed to provide access to the logic board.

Carefully disconnect and remove the front camera module from the phone. Set it aside somewhere safe while continuing the repair.

Take care not to damage the camera module or its connections during removal.

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Step 5: Remove the Logic Board

With the front camera module removed, proceed with removing the logic board.

Carefully disconnect the necessary connections and remove the logic board from the phone. Handle the board by its edges where possible and avoid applying unnecessary pressure to its components.

Set the logic board aside in a safe, clean location.

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Step 6: Remove the Battery

The battery must now be removed to access the button flex cable.

Disconnect the battery connection and carefully remove the battery from the phone. Work gently during this step and avoid damaging or bending the battery.

Battery warning: Do not use excessive force or sharp tools against the battery. A damaged battery can create a serious safety risk.

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Step 7: Remove the Existing Button Flex

With the battery removed, access the existing button flex.

Carefully remove the button flex cable from the phone. Take note of how the cable is positioned and routed so the replacement can be installed correctly.

Avoid pulling directly on delicate flex cable sections or connectors.

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Step 8: Remove the Faulty Power & Volume Flex Cable

Now remove the non-working Google Pixel 4 power and volume flex cable.

Carefully free the damaged cable from its position. Make sure the original flex has been completely removed before installing the replacement.

Keep the replacement cable aligned with the original routing and position.

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Step 9: Install the New Power & Volume Flex Cable

Place the new Google Pixel 4 power and volume flex cable into position.

Align the replacement cable carefully and make sure it sits correctly before continuing with reassembly. Avoid forcing the cable into place, as bending or damaging the flex can affect the power and volume buttons.

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Step 10: Reinstall the Logic Board

Once the replacement flex cable is installed, reinstall the logic board.

Carefully return the board to its original position and reconnect the necessary connections. Make sure it is properly seated before continuing.

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Step 11: Reinstall the Bracket

Reinstall the bracket that was removed earlier.

Position it correctly and secure it with the removed hardware. Work carefully around the internal components and make sure nothing is trapped underneath the bracket.

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Step 12: Reinstall the Battery

Place the battery back into the Google Pixel 4.

Make sure the battery is positioned correctly and reconnect it as required. Avoid applying unnecessary pressure to the battery during installation.

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Step 13: Reinstall the Front Camera Module

Return the front camera module to its original position.

Reconnect and secure the module carefully. Check that it is seated correctly before moving on to the remaining internal components.

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Step 14: Reinstall the Back Cover Sensor Flex

Next, reinstall the back cover sensor flex.

Position the flex correctly and reconnect it as required. Handle the cable carefully to avoid creasing or damaging it during installation.

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Step 15: Reinstall the Bottom Bracket

Place the bottom bracket back into position and secure it using the hardware removed during disassembly.

Make sure the bracket is seated correctly and that the surrounding components and flex cables are clear before continuing.

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Step 16: Close the Phone and Install the Back Cover

Complete the repair by closing the Google Pixel 4 and reinstalling the back cover.

Check the edges of the phone to make sure the back cover is seated correctly.

After the phone has been reassembled, test the power button and both volume buttons. Confirm that they respond correctly before considering the repair complete.

End of Repair Guide

The Google Pixel 4 power and volume flex cable replacement is now complete. Verify that the power button and volume controls respond normally after reassembly.

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FAQ

Do I need to remove the logic board to replace the power and volume flex cable?
Yes. The repair procedure requires removing the front camera module and logic board before accessing the button flex cable.

Does the battery need to be removed?
Yes. The battery is removed before accessing and replacing the power and volume button flex cable.

Why is the front camera module removed?
The front camera module is removed as part of the disassembly required to access and remove the logic board.

What should I test after replacing the flex cable?
Test the power button and volume buttons individually. Make sure each button responds correctly and consistently.

Can I force the replacement flex cable into position?
No. The flex cable should be positioned carefully without excessive force. Bending or damaging the cable can affect the button functions.

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Troubleshooting

The power button still does not work after replacing the flex cable. What should I check?
Check that the replacement flex cable is correctly positioned and connected. Also make sure the logic board and other internal components were properly reinstalled.

The volume buttons are not responding after the repair. What should I check?
Inspect the replacement power and volume flex cable and verify that it is seated correctly. Check for any damage to the cable caused during installation.

The phone does not power on after reassembly. What should I check?
Check that the battery was correctly installed and connected and that the logic board and its connections were properly reinstalled.

The back cover does not sit correctly after the repair. What should I do?
Do not force the cover into place. Check that the internal brackets, battery, flex cables, and other components are correctly seated and that nothing is preventing the back cover from closing properly.

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