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Samsung Galaxy S9 Rear Glass Removal

Samsung Galaxy S9 Rear Glass Removal

Dominik Schnabelrauch

Dominik Schnabelrauch and 6 other contributors

Last updated on Dec 27, 2023

10 - 25 minutes
Moderate

Introduction

Go to step 1

Use this guide to remove the rear glass of the Samsung Galaxy S9.

Opening the Samsung Galaxy S9 will damage the waterproof sealing on the device. If you do not replace the adhesive seals, your phone will function normally, but will loose its water-protection.

You’ll need replacement adhesive to reattach components when reassembling the device.

What you need

Parts

Tools

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  1. Samsung Galaxy S9 Rear Glass Removal, Rear Glass Removal: step 1, image 1 of 1
    • 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. Samsung Galaxy S9 Rear Glass Removal: step 2, image 1 of 1
    • 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. Samsung Galaxy S9 Rear Glass Removal: step 3, image 1 of 3 Samsung Galaxy S9 Rear Glass Removal: step 3, image 2 of 3 Samsung Galaxy S9 Rear Glass Removal: step 3, image 3 of 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 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. Samsung Galaxy S9 Rear Glass Removal: step 4, image 1 of 2 Samsung Galaxy S9 Rear Glass Removal: step 4, image 2 of 2
    • 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. Samsung Galaxy S9 Rear Glass Removal: step 5, image 1 of 3 Samsung Galaxy S9 Rear Glass Removal: step 5, image 2 of 3 Samsung Galaxy S9 Rear Glass Removal: step 5, image 3 of 3
    • 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. Samsung Galaxy S9 Rear Glass Removal: step 6, image 1 of 2 Samsung Galaxy S9 Rear Glass Removal: step 6, image 2 of 2
    • 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. Samsung Galaxy S9 Rear Glass Removal: step 7, image 1 of 1
    • 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.

Conclusion

Secure the new back cover with pre-cut adhesive or double-sided adhesive tape.

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

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.

After you've completed the repair, follow this guide to test your repair.

13 other people completed this guide.

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Dominik Schnabelrauch

Member since: 11/23/16

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2 Guide Comments

Sollte nach Abschluss der Reparatur der Fingerabdrucksensor nicht funktionieren bitte folgende Schritte machen:

1. Schalte das Handy aus und hänge es ein Ladegerät

2. Starte das Handy im Restore Modus indem du die Bixby, Lauter und Powertaste gleichzeitig drückst bis das Samsung Logo kommt.

3. Wähle in dem Menü den Punkt: Wipe Cache Partition aus und bestätige mit Power deine Auswahl.

4. Starte das Gerät neu.

Sebastian Coenen - Reply

Hi,

At least on my unit, the fingerprint sensor was actually retained in the back of the unit and came loose from the camera lens assembly during back cover removal, so I did not need to undo the connector for it until after I had removed the back cover. I was kind of worried when this happened since I thought I tore the cable at first. May want to note that buying a new fingerprint sensor adhesive piece is a good idea, it's like 3 bucks on here.

Also, this might just be me but I would really have preferred more reinstallation details other than "hey reverse these instructions". The aftermarket rear covers on here do not come with the adhesive all preinstalled, only a few pieces of it, so you have to carefully check and make sure you put those on and alignment isn't easy to figure out if you don't know what you're doing. I did alright on that part, but the back cover I bought has adhesive that's too thin and didn't seal everywhere so I will have to redo that and the fingerprint sensor adhesive next weekend.

Ken Stein - Reply

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