Difficulty
Moderate
Steps
20
Time Required
45 minutes - 1 hour
Sections
5
- Rear Glass Removal
- 8 steps
- NFC Antenna and Charging Coil
- 3 steps
- Battery Disconnect
- 1 step
- Samsung Galaxy S9 Plus Motherboard Mid Cover Replacement
- 2 steps
- Headphone Jack
- 6 steps
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Introduction
You’ll need replacement adhesive to reattach the fingerprint sensor when reassembling the device.
What you need
Video Overview
Step 1
Rear Glass Removal
- Switch off your phone.
- Use an iOpener to loosen the adhesive beneath the rear glass. Apply the iOpener for at least two minutes. You might want to repeat this step several times during the back cover removal.
- The adhesive of the Samsung Galaxy S9 Plus 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.
Switch off your phone.
Use an iOpener to loosen the adhesive beneath the rear glass. Apply the iOpener for at least two minutes. You might want to repeat this step several times during the back cover removal.
The adhesive of the Samsung Galaxy S9 Plus 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.
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Step 2
- 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.
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.
Step 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.
- 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 and slide it to the bottom right corner.
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 and slide it to the bottom right corner.
Step 4
- Insert a second opening pick and slide it to the bottom left corner.
- Insert a third opening pick at the bottom end of the phone. This opening pick stays there during the rear glass removal procedure to prevent the adhesive from resealing.
Insert a second opening pick and slide it to the bottom left corner.
Insert a third opening pick at the bottom end of the phone. This opening pick stays there during the rear glass removal procedure to prevent the adhesive from resealing.
Step 5
- Start to slide the tip of the opening pick from the bottom left corner along the side of the S9 Plus.
- Leave the opening pick in its place after you cut the adhesive half way up the left side of the phone.
- Slide the opening pick from the bottom right corner half way up the frame and leave it there.
Start to slide the tip of the opening pick from the bottom left corner along the side of the S9 Plus.
Leave the opening pick in its place after you cut the adhesive half way up the left side of the phone.
Slide the opening pick from the bottom right corner half way up the frame and leave it there.
Step 6
- Insert a fourth opening pick at the right side of the frame and slide it to the top right corner.
- Slide a fifth opening pick along the left side of the phone to the top left corner.
- Use the opening pick to cut the remaining adhesive under the upper part of the rear glass.
- Don’t open the phone all the way yet. The flex cable for the fingerprint reader is still connected to the motherboard.
Insert a fourth opening pick at the right side of the frame and slide it to the top right corner.
Slide a fifth opening pick along the left side of the phone to the top left corner.
Use the opening pick to cut the remaining adhesive under the upper part of the rear glass.
Don’t open the phone all the way yet. The flex cable for the fingerprint reader is still connected to the motherboard.
Step 7
- 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.
Step 8
- 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.
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.
Step 9
NFC Antenna and Charging Coil
- Remove the nine 4 mm Phillips #00 screws.
Remove the nine 4 mm Phillips #00 screws.
Step 10
- Insert an opening pick under the right side of the plastic cover containing the NFC antenna and charging coil.
- Flip the opening pick sideways to lift the cover out of its plastic clips.
- Work your way around the plastic cover, prying up to release the remaining clips.
Insert an opening pick under the right side of the plastic cover containing the NFC antenna and charging coil.
Flip the opening pick sideways to lift the cover out of its plastic clips.
Work your way around the plastic cover, prying up to release the remaining clips.
Step 11
- Remove the plastic cover containing the NFC antenna and the charging coil.
Remove the plastic cover containing the NFC antenna and the charging coil.
Step 12
Battery Disconnect
- Use the flat end of a spudger to pry up and disconnect the battery flex cable.
Use the flat end of a spudger to pry up and disconnect the battery flex cable.
Step 13
Unfasten the Motherboard Cover
- Remove the two 4 mm Phillips #00 screws.
Remove the two 4 mm Phillips #00 screws.
Step 14
Remove the Motherboard Cover
- Remove the plastic cover from the motherboard.
Remove the plastic cover from the motherboard.
Step 15
Unfasten Loudspeaker Assembly
- Remove the five 3.5 mm Phillips #00 screws.
Remove the five 3.5 mm Phillips #00 screws.
Step 16
- Insert an opening pick underneath the top edge of the loudspeaker assembly.
- Use the opening pick to pry up the loudspeaker assembly.
Insert an opening pick underneath the top edge of the loudspeaker assembly.
Use the opening pick to pry up the loudspeaker assembly.
Step 17
Remove Loudspeaker Assembly
- Remove the loudspeaker assembly.
Remove the loudspeaker assembly.
Step 18
Unfasten Headphone Jack
- Remove the 3.5 mm Phillips #00 screw.
Remove the 3.5 mm Phillips #00 screw.
Step 19
Disconnect Headphone Jack
- Use the flat end of a spudger to pry up and disconnect the headphone jack flex cable.
Use the flat end of a spudger to pry up and disconnect the headphone jack flex cable.
Step 20
Remove Headphone Jack
- Use a pair of tweezers to remove the headphone jack.
Use a pair of tweezers to remove the headphone jack.
To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
Secure the fingerprint sensor with pre-cut adhesive or double-sided adhesive tape during reassembly.
Take your e-waste to an R2 or e-Stewards certified recycler.
After you’ve completed the repair, follow this guide to test your repair.
Removal didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
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Dominik Schnabelrauch
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