跳转到主内容

简介

The motherboard is the brain of your phone. You may need to replace the motherboard if your phone is having major issues. Before you start, it may be beneficial to check out this troubleshooting page to diagnose your problems.

Be forewarned- if you replace your motherboard, your device will lose its waterproof capabilities. You will need to replace the waterproof seal if you see your device getting wet in the near future.

  1. Before you begin, switch off your phone.
    • Before you begin, switch off your phone.

    • Apply a heated iOpener to a long edge of the phone to loosen the adhesive beneath the rear glass. Apply the iOpener for at least two minutes.

    • You might need to reheat and reapply the iOpener several times during the removal procedure to get the adhesive warm enough to cut. Follow the iOpener instructions to avoid overheating.

    • The adhesive of the Samsung Galaxy S9 is very strong. A hair dryer, heat gun, or hot plate may also be used if you aren't able to open the device with the iOpener. Be careful not to overheat the phone—the AMOLED display and internal battery are both susceptible to heat damage.

  2. In the following steps, you'll be cutting through the adhesive securing the back cover.
    • In the following steps, you'll be cutting through the adhesive securing the back cover.

    • The adhesive in the inside of the back cover is laid out as seen in the image.

    • You'll be slicing through the adhesive in the areas shown:

    • Thick portions of adhesive

    • Thin areas of adhesive

    • Avoid prying or slicing in this area, to protect the fingerprint sensor flex cable.

  3. If the phone's rear glass 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. Press a suction cup onto the back cover. Lift the back cover's bottom edge with your suction cup, opening a slight gap between the back cover and the frame.
    • If the phone's rear glass 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.

    • Press a suction cup onto the back cover.

    • Lift the back cover's bottom edge with your suction cup, opening a slight gap between the back cover and the frame.

    • This may require a significant amount of force, but you only need to open a very slight gap with the suction cup to insert your tool. If you have trouble, apply more heat to further soften the adhesive, and try again. The adhesive cools very fast, so you may need to heat it repeatedly.

    • Insert an opening pick in the gap you created and slide it to the bottom right corner.

    • Insert a second opening pick and slide it to the bottom left corner.

    • Insert a third opening pick to prevent the adhesive from resealing during the rest of the removal procedure.

  4. While inserting only the tip of the opening pick, slide it from the bottom left corner along the side to the top. Slide the pick around the top corner and leave it there to prevent the adhesive from resealing.
    • While inserting only the tip of the opening pick, slide it from the bottom left corner along the side to the top.

    • Slide the pick around the top corner and leave it there to prevent the adhesive from resealing.

  5. Slide the opening pick from the bottom right corner along the side to the top. Apply more heat if the adhesive becomes hard to cut. During the removal process, the back cover is under tension all the time and is likely to break if the adhesive isn't softened enough. Slide the opening pick around the corner and cut the remaining adhesive at the top of the phone.
    • Slide the opening pick from the bottom right corner along the side to the top.

    • Apply more heat if the adhesive becomes hard to cut. During the removal process, the back cover is under tension all the time and is likely to break if the adhesive isn't softened enough.

    • Slide the opening pick around the corner and cut the remaining adhesive at the top of the phone.

    • Don't open the phone all the way yet. The fragile fingerprint sensor cable still connects the back cover to the motherboard.

  6. Carefully lift the side of the rear glass where the volume button is located. Use the edge of a spudger to pry up and disconnect the fingerprint sensor flex cable.
    • Carefully lift the side of the rear glass where the volume button is located.

    • Use the edge of a spudger to pry up and disconnect the fingerprint sensor flex cable.

  7. Android 维修工具包

    A new screen or battery is one kit away.

    现在开始购物

    Android 维修工具包

    A new screen or battery is one kit away.

    现在开始购物
  8. Remove the rear glass.
    • Remove the rear glass.

    • When reassembling follow this guide to replace the adhesive and reinstall the rear glass.

    • In case you want to replace your rear glass follow this guide to transfer the rear camera bezel including the fingerprint.

  9. Remove fifteen 4mm screws with a #000 Phillips screwdriver.
    • Remove fifteen 4mm screws with a #000 Phillips screwdriver.

  10. Remove the NFC coil assembly.
    • Remove the NFC coil assembly.

  11. Remove the motherboard bracket.
    • Remove the motherboard bracket.

  12. Remove the speaker cover/antenna assembly.
    • Remove the speaker cover/antenna assembly.

  13. Disconnect the battery by using a spudger to pry open the connection.
    • Disconnect the battery by using a spudger to pry open the connection.

  14. Remove one 3mm screw with a #000 Phillips screwdriver.
    • Remove one 3mm screw with a #000 Phillips screwdriver.

  15. Disconnect 6 cables by prying apart the connections with a spudger.
    • Disconnect 6 cables by prying apart the connections with a spudger.

  16. Take out the SIM card by using a SIM card remover or unbent paper clip to depress the release lever. Take out the SIM card by using a SIM card remover or unbent paper clip to depress the release lever.
    • Take out the SIM card by using a SIM card remover or unbent paper clip to depress the release lever.

  17. Remove the motherboard by prying it out with the spudger. Remove the motherboard by prying it out with the spudger. Remove the motherboard by prying it out with the spudger.
    • Remove the motherboard by prying it out with the spudger.

结论

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

4等其他人完成本指南。

Ani Svadjian

于2019年01月24日注册

406 信誉积分

创作了2篇指南

团队

Cal Poly, Team S1-G6, White Winter 2019 Cal Poly, Team S1-G6, White Winter 2019 的会员

CPSU-WHITE-W19S1G6

4 名成员

创作了19篇指南

添加评论

浏览统计数据:

过去的24小时: 13

过去的7天: 91

过去的30天: 375

总计 2,663