Samsung Galaxy S III Motherboard Replacement

Featured Guide

Featured Guide

This guide has been found to be exceptionally cool by the iFixit staff.

Replace the Motherboard in your Samsung Galaxy S III.

Use this guide to replace the motherboard.

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Edit Step 1 Rear Case  ¶ 

  • The following four steps can be accomplished without a plastic opening tool. However, it's recommended to use a tool to best avoid breaking any clips along the perimeter of the rear case.

  • Insert a plastic opening tool or fingernail into the notch in the gap between the rear case and the rest of the phone, located at the top of the device.

  • Gently twist the opening tool to disconnect the clips securing the top of the rear case.

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Edit Step 2  ¶ 

  • Slide the plastic opening tool left along the top edge and repeat the twisting motion to widen the gap between the rear case and the phone.

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Edit Step 3  ¶ 

  • Continue to move the plastic opening tool around the perimeter of the top left corner, gently prying up along the rear case.

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Edit Step 4  ¶ 

  • Pry along the top right side, and continue prying down the right side of the rear case.

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Edit Step 5  ¶ 

  • Lift up and remove the rear case from the phone.

  • You may need to peel the case up to separate it from any clips still holding it to the bottom of the phone.

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Edit Step 6 Battery  ¶ 

  • This step can be accomplished without the need of a plastic opening tool. Just use your finger if you want to.

  • Wedge a plastic opening tool into the small notch above the battery.

  • Pry the battery up out of its recess.

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Edit Step 7  ¶ 

  • Remove the battery.

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Edit Step 8 SIM Card  ¶ 

  • Using your fingernail, push the SIM card slightly deeper into its slot, until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • For reassembly, push the SIM card into the slot until it clicks in place.

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Edit Step 9  ¶ 

  • Use your thumb to slide enough of the SIM card out of its slot to grab ahold of it.

  • Grasp and remove the SIM card away from the phone.

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Edit Step 10 microSD Card  ¶ 

  • Using your fingernail, push the microSD card slightly deeper into its slot, until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • For reassembly, push the microSD card into the slot until it clicks in place.

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Edit Step 11  ¶ 

  • Use your thumb to slide the microSD card out of the slot.

  • Remove the microSD card from the phone.

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Edit Step 12 Plastic Midframe  ¶ 

  • Remove the ten 4.0 mm Phillips #0 screws securing the midframe to the front panel assembly.

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Edit Step 13  ¶ 

  • Grasp the left side of the plastic midframe with your thumb and forefinger and lift it away from the phone.

  • The midframe lightly snaps in place, and can be removed with very little force.

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Edit Step 14 Motherboard Assembly  ¶ 

  • Use a plastic opening tool to pry the front-facing camera connector from its socket on the motherboard.

  • Do not try to remove the front-facing camera just yet. Its cable is still routed beneath the motherboard assembly to the ambient light sensor.

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Edit Step 15  ¶ 

  • Disconnect the digitizer cable by gently prying its connector up from its socket on the motherboard.

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Edit Step 16  ¶ 

  • Disconnect the display data cable from the motherboard.

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Edit Step 17  ¶ 

  • Pry the Wi-Fi antenna cable connector up from its socket on the motherboard.

  • Gently move the cable out of the way of the motherboard.

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Edit Step 18  ¶ 

  • Remove the single 3.0 mm Phillips #0 screw securing the motherboard to the front panel assembly.

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Edit Step 19  ¶ 

  • Carefully lift the bottom of the motherboard assembly away from the front panel assembly.

  • Remove the motherboard assembly from the front panel assembly, minding any cables that may snag on it.

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Edit Step 20 Rear-Facing Camera  ¶ 

  • Flip the motherboard over. We recommend setting it on a grounded work surface.

  • Use a plastic opening tool to pry the rear-facing camera connector from its socket.

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Edit Step 21  ¶ 

  • Remove the rear-facing camera off the motherboard.

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Edit Step 22 Motherboard  ¶ 

  • The motherboard remains.

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

For more information, check out the Samsung Galaxy S III device page.

Required Tools

Phillips #00 Screwdriver

$5.95 · 50+ In stock

Plastic Opening Tools

$2.95 · 50+ In stock

Recommended Tools

Universal Drive Adapter

$29.95 · 50+ In stock

iFixit Lock Pick Set

$29.95 · 50+ In stock

Inspection Scope

$39.95 · 50+ In stock

Frictionless Ratchet

$24.95 · 50+ In stock

Portable Anti-Static Mat

$34.95 · 40 In stock

Comments Comments are onturn off

Between step 13 and 14, there should be a step to detach the cable to the camera lens and speaker assembly and the removal of the assembly.

ewu777, · Reply

Where do i buy the original motherboard and what is the cost

Mustafa Mukhtiar, · Reply

I need Mother board for S3. If anyone have then contact idris.dw@gmail.com

idris dahodwala, · Reply

Can you please suggest where can I get the replacement parts for my S3 Korean version

Dijup Tuladhar, · Reply

Hey looks easy! but where do you get the motherboard from?

Beerzy, · Reply

Sounds easy!!!!

but where do you buy the motherboard?

Beerzy, · Reply

Forgot about the step to remove the back casing...pretty simple though, just several screws then pop it off.

Courtney, · Reply

There's another piece of the frame that needs to be taken out, but it doens't come out as nicely... unless I did something wrong. It's the part that covers the speaker. I couldn't find a nice way of taking it out.

David, · Reply

I had to use a guitar-pick to pry that section off of the frame. Start at the front-facing camera edge and run the pick underneath the plastic cover. The catches should release.

Takashi Alekseev, · Reply

I used a pointed prying too to get it started, then the flat one. It took some fiddling but finally came off nicely.

Nick B, · Reply

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