Introduction

This guide details how to remove the motherboard from your Nexus 4.

    • Remove the SIM tray using the SIM Card Eject Tool.

    • This step is required in order to remove the back case.

    • Gently open the back case by prying along the edge of the cover, starting at a corner of the phone and circling around the phone using a plastic opening tool.

    • The opening process may take a few minutes. The plastic will make a light snapping noise as the back cover separates from the rest of the phone.

    • Remove the two 1.8 mm Phillips screws holding down the battery connector.

    • Using a plastic opening tool, disconnect the battery cable from its socket on the motherboard.

    • Remove the blue tape that secures the white antenna cable to the battery.

    • Using a spudger, carefully disconnect the white antenna cable.

    • Carefully pry the battery out with a Plastic Opening Tool, starting at the top left-hand corner and working down towards the bottom right-hand corner.

      • If necessary, you can also use a plastic card to separate the battery from the metal midframe.

    • The battery is securely glued to the phone. When reinstalling the battery, press the battery firmly against the adhesive strip.

    • Remove the nine 4.6 mm Phillips #000 screws. Gently lift out the plastic cover.

    • The midframe is held in with two clips, one at either side. Use a plastic spudger to release each side and gently lift up and away.

    • Remove the two 4.8 mm screws that hold the speaker enclosure together using the Phillips 00 screwdriver.

    • Gently pry the speaker up and away from the back of the phone using a plastic opening tool, and lift it out of the phone.

    • Using a spudger, pop off the gray connector on the top right of the motherboard.

    • Gently lift the audio jack upwards and to the left to remove it from the motherboard.

    • The audio port will likely lift out together with the ambient light sensor rubber cap.

    • Remove the cap from the old part and move it to the new one. Ensure the cap stays in place when installing the new audio port into the phone.

    • Gently pry the metal tab up using a spudger, and lift up the disconnected black flap.

    • With a spudger, carefully pry up the black tab connecting the camera to the motherboard.

    • Lift up the camera from the socket.

    • Remove the Sim Card and the Sim Card metal tray.

    • Remove the white antenna interconnect cable that attaches the motherboard to the bottom right-hand corner of phone by pulling on it gently.

    • Remove the tab located in the bottom right-hand corner of the motherboard attaching the motherboard to the front display assembly using a spudger.

    • Remove the last tab connecting the motherboard to the front display assembly located in the upper right-hand corner of the motherboard using a spudger.

    • Once this tab is removed, the flap will be free and will spring away from the motherboard.

    • Using a spudger, gently lift up the motherboard from the front display assembly.

    • Carefully remove the motherboard using your hands.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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Kaitlyn Jones

Member since: 01/27/2013

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Cal Poly, Team 3-32, Amido Winter 2013 Member of Cal Poly, Team 3-32, Amido Winter 2013

CPSU-AMIDO-W13S3G32

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2 Comments

This manual doesn't mention to take out volume and Power Buttons and removing the lower PCB with the USB port and LED!

I would edit but unfortunately I didnt take any pics

Robin Munkittrick - Reply

As Robin says, this misses out a few bits that are needed if you are trying to replace the screen and digitiser - two buttons, lower usb assembly and also a very small, mysterious, soft rubber insert that goes at the top and no doubt does something vital. Sorry also no pictures but none of these are exceptionally tricky - though the usb assembly needs gentle handling and patience. It took me a lot longer than the guide suggested but thanks to those clear instructions it all got done … and now my faithful old phone works again! Thanks a million!

tim bergel - Reply

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