Difficulty
Moderate
Steps
8
Time Required
15 - 20 minutes
Sections
1
- Back Cover
- 8 steps
Flags
0
BackSamsung Galaxy A40
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Introduction
You’ll need replacement adhesive to reattach components when reassembling the device.
What you need
Step 1
Loosen the back cover adhesive
- Apply a heated iOpener to the back cover to loosen the adhesive underneath. Apply the iOpener for at least two minutes.
Apply a heated iOpener to the back cover to loosen the adhesive underneath. Apply the iOpener for at least two minutes.
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Step 2
Insert an opening pick
- Secure a suction handle to the right edge of the back cover, as close to the edge as possible.
- If the phone’s back cover is damaged, the suction handle may not stick. Try lifting it with strong tape, or superglue the suction handle in place and allow it to cure so you can proceed.
- Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
- Insert an opening pick into the gap.
- In case you have trouble creating a gap, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.
Secure a suction handle to the right edge of the back cover, as close to the edge as possible.
If the phone’s back cover is damaged, the suction handle may not stick. Try lifting it with strong tape, or superglue the suction handle in place and allow it to cure so you can proceed.
Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
Insert an opening pick into the gap.
In case you have trouble creating a gap, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.
Step 3
Slice the adhesive
- Slide the opening pick to the bottom right corner and leave it in place to prevent the adhesive from resealing.
Slide the opening pick to the bottom right corner and leave it in place to prevent the adhesive from resealing.
Step 4
Insert a second opening pick
- Insert a second opening pick at the bottom right corner.
- Slide the opening pick along the right edge of your phone to cut the adhesive beneath the back cover.
- Leave the opening pick in the top right corner.
- At this point of the back cover removal feel free to remove the suction cup or continue to use it for a better grip.
Insert a second opening pick at the bottom right corner.
Slide the opening pick along the right edge of your phone to cut the adhesive beneath the back cover.
Leave the opening pick in the top right corner.
At this point of the back cover removal feel free to remove the suction cup or continue to use it for a better grip.
Step 5
Cut the adhesive
- Insert a third opening pick at the top right corner of your phone.
- Slide the opening pick along the top edge of your phone to cut the adhesive.
- Leave the opening pick in the top left corner to prevent the adhesive from resealing.
- If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener to reheat it.
Insert a third opening pick at the top right corner of your phone.
Slide the opening pick along the top edge of your phone to cut the adhesive.
Leave the opening pick in the top left corner to prevent the adhesive from resealing.
If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener to reheat it.
Step 6
- Insert a fourth opening pick at the top left corner of your phone.
- Slide the opening pick along the left edge of your phone to cut the adhesive.
- Leave the opening pick in the bottom left corner.
Insert a fourth opening pick at the top left corner of your phone.
Slide the opening pick along the left edge of your phone to cut the adhesive.
Leave the opening pick in the bottom left corner.
Step 7
- Insert a fifth opening pick to cut the remaining adhesive at the bottom edge of your phone.
- In order to cut all the adhesive at the bottom edge of the device, you need to insert the opening pick about 0.4 inch (1cm).
Insert a fifth opening pick to cut the remaining adhesive at the bottom edge of your phone.
In order to cut all the adhesive at the bottom edge of the device, you need to insert the opening pick about 0.4 inch (1cm).
Step 8
Remove the back cover
- To avoid tearing the fingerprint cable during the following step, make sure to gently press down the fingerprint reader while lifting the back cover.
- Fold the back cover upwards and remove it.
To avoid tearing the fingerprint cable during the following step, make sure to gently press down the fingerprint reader while lifting the back cover.
Fold the back cover upwards and remove it.
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 rear glass with pre-cut adhesive or double-sided adhesive tape during reassembly.
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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