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Introducción

Use this guide to remove or replace a faulty motherboard.

This guide involves removing the rear glass cover, you will need replacement adhesive to reattach the back cover to the phone.

Before disassembling your phone, discharge the battery below 25%. The battery can catch fire and/or explode if accidentally punctured, but the chances of that happening are much lower if discharged.

  1. We recommend that you clean your microwave before proceeding, as any nasty gunk on the bottom may end up stuck to the iOpener. Place the iOpener in the center of the microwave.
    • We recommend that you clean your microwave before proceeding, as any nasty gunk on the bottom may end up stuck to the iOpener.

    • Place the iOpener in the center of the microwave.

    • For carousel microwaves: Make sure the plate spins freely. If your iOpener gets stuck, it may overheat and burn.

  2. Heat the iOpener for thirty seconds.
    • Heat the iOpener for thirty seconds.

    • Throughout the repair procedure, as the iOpener cools, reheat it in the microwave for an additional thirty seconds at a time.

    • Be careful not to overheat the iOpener during the repair. Overheating may cause the iOpener to burst.

    • Never touch the iOpener if it appears swollen.

    • If the iOpener is still too hot in the middle to touch, continue using it while waiting for it to cool down some more before reheating. A properly heated iOpener should stay warm for up to 10 minutes.

  3. Remove the iOpener from the microwave, holding it by one of the two flat ends to avoid the hot center.
    • Remove the iOpener from the microwave, holding it by one of the two flat ends to avoid the hot center.

    • The iOpener will be very hot, so be careful when handling it. Use an oven mitt if necessary.

  4. Opening your phone will compromise its waterproof seals. Have replacement adhesive ready before you proceed, or take care to avoid liquid exposure if you reassemble your phone without replacing the adhesive.
    • Opening your phone will compromise its waterproof seals. Have replacement adhesive ready before you proceed, or take care to avoid liquid exposure if you reassemble your phone without replacing the adhesive.

    • Heat an iOpener and apply it to a long edge of the S8 for about 2 minutes.

    • You may need to reheat and reapply the iOpener several times to get the phone warm enough. Follow the iOpener instructions to avoid overheating.

    • A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the OLED display and internal battery are both susceptible to heat damage.

    • As you're waiting for the adhesive to soften, move on and read the following step to get an idea of where to pry.

  5. In the following steps you will be cutting through the adhesive around the edge of the rear glass panel. The adhesive on the rear case is laid out as seen in the first image.
    • In the following steps you will be cutting through the adhesive around the edge of the rear glass panel.

    • The adhesive on the rear case is laid out as seen in the first image.

    • The prying pattern as seen from the outside of the phone is as follows:

    • Thick portions of adhesive

    • Thin areas of adhesive

    • Avoid prying here, to protect the fingerprint sensor.

  6. Once the back panel is warm to the touch, apply a suction cup as close to the heated edge of the phone as you can while avoiding the curved edge. The suction cup will not make a good seal on the curved portion of the glass.
    • Once the back panel is warm to the touch, apply a suction cup as close to the heated edge of the phone as you can while avoiding the curved edge.

    • The suction cup will not make a good seal on the curved portion of the glass.

    • If the phone's back cover is cracked, the suction cup may not stick. Try lifting it with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.

    • Lift on the suction cup, and insert a halberd spudger, or opening pick, under the rear glass.

    • Due to the curved glass, you will be pushing up, rather than inserting parallel to the plane of the phone.

  7. Once you have the tool firmly inserted into the glass, reheat and reapply the iOpener to soften the adhesive.
    • Once you have the tool firmly inserted into the glass, reheat and reapply the iOpener to soften the adhesive.

  8. Slide an opening pick or the blade of a Halberd spudger down the side of the phone, separating the adhesive. Go slowly so that the tool doesn't slip out of the seam. If cutting becomes difficult, reheat and reapply the iOpener.
    • Slide an opening pick or the blade of a Halberd spudger down the side of the phone, separating the adhesive.

    • Go slowly so that the tool doesn't slip out of the seam. If cutting becomes difficult, reheat and reapply the iOpener.

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  10. Repeat the previous heating and cutting procedure for the remaining three sides of the phone. Leave an opening pick on each side as you continue to the next to prevent the adhesive from resealing. Leave an opening pick on each side as you continue to the next to prevent the adhesive from resealing.
    • Repeat the previous heating and cutting procedure for the remaining three sides of the phone.

    • Leave an opening pick on each side as you continue to the next to prevent the adhesive from resealing.

  11. The fingerprint sensor cable connects the phone to the rear glass near the main camera. The cable is very short and should disconnect as the rear glass is removed. As you lift the glass, peek in to be sure the orange cable with a blue connector has disconnected.
    • The fingerprint sensor cable connects the phone to the rear glass near the main camera. The cable is very short and should disconnect as the rear glass is removed.

    • As you lift the glass, peek in to be sure the orange cable with a blue connector has disconnected.

    • Use the opening picks to slice through any remaining adhesive and open the phone slightly.

    • If the fingerprint sensor cable seems snagged or stays taut do not open the phone any further. Disconnect the connector with the point of a spudger before proceeding.

    • During reassembly, in order to reconnect the fingerprint sensor cable, first angle the back cover into position until the cable connector lines up perfectly over its socket. Then, use the flat end of your spudger to gently snap the connector into place by pressing it straight down.

    • Remove the glass from the phone.

    • To reinstall the back cover:

    • First use tweezers to peel away any remaining adhesive from both the back cover and the phone's chassis.

    • Then, clean the adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth. Swipe in one direction only, not back and forth. This will help prep the surface for the new adhesive.

    • Be sure to turn on your phone and test your repair before installing new adhesive and resealing the phone.

    • Replacement adhesive comes in a pre-cut sheet to match the exact contours of the back cover. If that's not available, you can use a high-bond double-sided tape, such as Tesa 61395. Be aware that this leaves gaps that are vulnerable to liquid intrusion.

    • If you are installing using pre-cut adhesives, peel the clear backing first. Press the adhesive sheet to the back cover, aligning any cutouts. Finally, peel the colored liner when you are ready to seal the phone.

    • After installing the rear cover, apply strong, steady pressure to your phone for several minutes to help the adhesive form a good bond, such as by placing it under a stack of heavy books.

    • If desired, you may reinstall the back cover without replacing the adhesive. Remove any large chunks of adhesive that might prevent the back cover from sitting down flush. After installation, heat the back cover and apply pressure to secure it. It won't be waterproof, but the glue is usually more than strong enough to hold.

  12. Remove eleven 3.7 mm screws.
    • Remove eleven 3.7 mm screws.

  13. Remove the NFC antenna and charging coil assembly. Remove the NFC antenna and charging coil assembly.
    • Remove the NFC antenna and charging coil assembly.

  14. Remove three 3.7 mm Phillips #000 screws.
    • Remove three 3.7 mm Phillips #000 screws.

  15. Remove the loudspeaker assembly.
    • Remove the loudspeaker assembly.

  16. Insert a SIM card opening tool into the small hole on the left side of the top edge of the phone. Press to eject the tray. Remove the SIM card tray from the phone.
    • Insert a SIM card opening tool into the small hole on the left side of the top edge of the phone.

    • Press to eject the tray.

    • Remove the SIM card tray from the phone.

    • When reinserting the SIM card, ensure that it is in the proper orientation relative to the tray.

  17. Use the flat end of a spudger to disconnect the battery connector. Although the battery is not shown in the next steps, there is no need to remove it for this guide. Just disconnect the battery and you're good to go.
    • Use the flat end of a spudger to disconnect the battery connector.

    • Although the battery is not shown in the next steps, there is no need to remove it for this guide. Just disconnect the battery and you're good to go.

  18. Use the flat end of a spudger to disconnect the sensor array connector. Use the flat end of a spudger to disconnect the sensor array connector.
    • Use the flat end of a spudger to disconnect the sensor array connector.

  19. Use the flat end of a spudger to disconnect the front-facing camera connector. Use the flat end of a spudger to disconnect the front-facing camera connector.
    • Use the flat end of a spudger to disconnect the front-facing camera connector.

  20. Use the flat end of a spudger to disconnect the display and digitizer connector. Use the flat end of a spudger to disconnect the display and digitizer connector.
    • Use the flat end of a spudger to disconnect the display and digitizer connector.

  21. Use the point of a spudger to disconnect two antenna cables that connect the motherboard to the daughterboard. Use the point of a spudger to disconnect two antenna cables that connect the motherboard to the daughterboard. Use the point of a spudger to disconnect two antenna cables that connect the motherboard to the daughterboard.
    • Use the point of a spudger to disconnect two antenna cables that connect the motherboard to the daughterboard.

  22. Use the flat end of a spudger to disconnect an antenna ribbon cable that connects the motherboard to the daughterboard. Use the flat end of a spudger to disconnect an antenna ribbon cable that connects the motherboard to the daughterboard.
    • Use the flat end of a spudger to disconnect an antenna ribbon cable that connects the motherboard to the daughterboard.

  23. Use the flat end of a spudger to lift the motherboard and disconnect it from the daughterboard. Use the flat end of a spudger to lift the motherboard and disconnect it from the daughterboard.
    • Use the flat end of a spudger to lift the motherboard and disconnect it from the daughterboard.

  24. Lift the motherboard out of the phone. Careful not to snag the battery connector if you chose not to remove the battery.
    • Lift the motherboard out of the phone.

    • Careful not to snag the battery connector if you chose not to remove the battery.

Conclusión

After reapplying adhesive, follow these instructions in reverse order to reassemble your device.

20 personas más completaron esta guía.

Adam O'Camb

Miembro Desde 11/04/15

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does the size differ between s8 and s8+?

can i use s8+ motherboard for s8?

Ginthozan Varnakulasingam - Contestar

Hi Ginthozan, unfortunately the S8+ motherboard is not compatible with the S8, and vice versa.

Adam O'Camb -

Are all the connections and motherboard layouts the same for Sprint vs AT&T S8?

Fayyaz Bhinde - Contestar

Hello i can’t charge my phone (both directly and wireless). I still can turn on my phone by charging it directly to the battery. I have replaced my chsrging port flexible but it didn’t works. I think the ic is broken. There’s two PMIC for s8, PM8998 and SM5720, which one that i should change if i can’t charge my phone? Thankyou

Jordan - Contestar

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