Google Pixel 4 Bottom Microphone Replacement

Insert a SIM eject tool, bit, or a straightened paper clip into the small hole on the SIM card tray.

• Press firmly to eject the tray.
• Remove the ejected SIM card tray.

Do not apply excessive heat, which can cause damage to the display and internal battery.

• Apply an iOpener to the bottom edge of the back panel for one minute.
• Alternatively, use a hair dryer, heat gun, or hot plate, but keep the phone away from direct heat sources.

Apply a suction cup to the heated edge of the back panel by pressing down to create suction.

• If the back glass is cracked, cover it with clear packing tape for better adhesion.
• Alternatively, use very strong tape in place of the suction cup.
• If all else fails, superglue the suction cup to the broken panel as a last resort.

Apply strong, steady pressure with the suction cup to create a gap between the back panel and frame.

• For older phones, additional heat may be required to loosen the adhesive.
• Insert the point of an opening pick into the created gap.

Insert an opening pick at the bottom of the device.

• Slide the pick across the bottom towards the left corner, slicing the adhesive.
• With the pick still inserted, slide it from the left corner over to the right corner.
• Leave the pick in place at the right corner to prevent re-adhesion.

Heat an iOpener according to its instructions.

Apply the heated iOpener to the left edge of the phone for one minute, letting it sit until the adhesive loosens.

Insert a second opening pick under the back panel, positioned directly above the charge port.

• Slide the pick down towards the bottom left corner of the phone.

Slide the opening pick around the bottom left corner and across the left side of the phone.

• Slice through the adhesive with a sawing motion, pushing the pick in and out as needed.
• The adhesive can be very gummy; use caution when handling it.

Stop when you reach the top left corner near the camera and leave the pick inserted to avoid damaging any components.

Apply iOpener to the right edge of the phone for 1 minute.

Insert a third pick near the bottom of the phone on the right-hand side.

• Slide the pick upwards towards the top of the phone, cutting the adhesive on the right side.
• Stop at the top right corner and leave the pick in place.

Place the third opening pick at the top right corner of the phone.

• Guide it across the top edge to slice the remaining adhesive.

Do not pull the panel all the way off yet.

• Lift the right edge of the back cover like opening a book.
• It will still be attached to the phone, so do not attempt to remove it completely.

Continue opening the back panel until it rests on the left edge of the phone.

• Avoid putting stress on the attached ribbon cable.

Power on your phone and test all functions before re-sealing the back panel. Completely power down your phone before continuing work.

Remove the T3 Torx screws securing the battery connector shield:

• Four screws, 4.0 mm
• One screw, 2.1 mm

Keep track of each screw and ensure it is replaced exactly where it came from.

Use tweezers to remove the battery connector shield.

Careful not to puncture the battery with a spudger.

• Pry the battery connector straight up from the motherboard using the pointed end of a spudger.

When re-attaching, align and press down on one side until it clicks; repeat on the other. Do not press in the middle to avoid pin bending.

Use the flat end of a spudger to gently fold the battery cable out of the way.

Remove the T3 Torx using a driver for the 2 x 4mm screws holding the back panel connector cover.

Remove the back panel connector cover using a pair of tweezers.

Use the pointed end of a spudger to carefully pry up the back panel connector.

Remove the back panel.

• For reassembly with custom-cut adhesives:
• Refer to the separate guide for installation instructions.
• For pre-cut adhesive cards, follow the provided guide for installation.

Remove the camera connector cover by using a T3 Torx driver to take out the four 4 mm screws.

Use tweezers to carefully lift the camera cover.

• Tilt the camera cover upwards.
• Slide the camera cover out of its retaining slot in the upper right corner.

Pry the camera and sensor connectors straight up from the motherboard using the pointed end of a spudger.

Disconnect the laser module connector.

Remove the front camera and sensor assembly using a T3 Torx driver.

• Use the T3 Torx driver to remove the two 2.4 mm screws.

Remove the front camera and sensor assembly with a pair of tweezers.

Remove the T3 Torx driver and unscrew the following:

• 1 x 4.2mm T3 Torx screw
• 1 x 4.4mm shouldered T3 Torx screw

Remove the vibration motor shield with a pair of tweezers.

Use the pointed end of a spudger to carefully pry the two rear-facing camera connectors loose from the motherboard.

Disconnect the side buttons connector from the motherboard.

• Disconnect the earpiece speaker connector from the motherboard.

Disconnect the left grip sensor connector from the motherboard.

• Next, disconnect the charge port connector from the motherboard.

Disconnect the display connector from the motherboard.

• Remove the right grip sensor connector from the motherboard.

Use tweezers to grasp the metal clip and pull the connector directly upwards.

• Pull the connector straight up off of the motherboard.
• To release the bottom antenna connector, use a spudger and gently pry it loose from the motherboard.

Disconnect the bottom microphone connector from the motherboard.

Gently pry the battery adhesive pull tabs away from the motherboard, without removing them yet.

Use a spudger to carefully lift the top end of the motherboard away from the phone's frame.

Remove the motherboard slowly to avoid snagging ribbon cables.

• The rear-facing camera module may detach from the phone during this process.
• Completely remove the motherboard to prevent any issues.
• The small rubber microphone cover may fall off; ensure you do not lose it.
• When reinstalling, verify that no ribbon cables are trapped underneath.

Remove the microphone cover with a pair of tweezers.

Use the pointed end of a spudger to carefully pry the microphone away from the phone's frame at the bottom edge.

Be gentle, as it is held in place by light adhesive.

Use a pair of tweezers to carefully remove the microphone.

• Before installing a replacement microphone, inspect the adhesive gasket.
• If the gasket is in good condition, re-use it but ensure it does not cover the hole.
• If the gasket has been pulled out of place, remove and replace with a pre-cut strip or Tesa tape.