Samsung Galaxy S21 Ultra Back Cover Replacement - Samsung Galaxy S21 Ultra

Step 1 | Heat the back cover

Unplug your phone and power it off.

Prepare an iOpener and apply it to the back cover for at least three minutes.
Alternatively, use a hair dryer, heat gun, or hot plate, but be cautious not to overheat the device as the display and internal battery may be damaged by excessive heat.

Step 2 | Insert an opening pick

Secure a suction handle to the back cover's bottom edge, as close to the edge as possible.

If the back cover is badly cracked, applying clear packing tape may allow the suction cup to adhere or you can use very strong tape instead. If all else fails, superglue the suction cup in place.

Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
If no gap is created, apply more heat to soften the adhesive further, following iOpener instructions to avoid overheating.

Insert an opening pick into the created gap.

Slide the opening pick to the bottom left corner to slice the adhesive.
Leave the opening pick in place to prevent resealing of the adhesive.

Step 3 | Slice the adhesive

Insert another opening pick at the bottom edge.

Slide it down to the bottom right corner.
Leave them in place to keep adhesive separated.

Step 4

Reheat the iOpener for 2-3 minutes if the adhesive is hard to cut.

Insert a new opening pick at the bottom right corner of your phone.
Slide it along the right edge to slice the adhesive, and leave it in place.

Step 5

Avoid damaging the camera by only inserting the opening pick tip (~ 4-5 mm) when slicing near the camera assembly.

Insert a fourth opening pick under the top right corner of your phone.
Slide this pick along the top edge to slice the adhesive.
Leave the pick in the top left corner to prevent resealing.

Step 6

Insert a fifth opening pick at the top left corner.

When slicing near the power button, only insert ~3-4 mm of the opening pick

Slide the opening pick along the left edge to slice remaining adhesive.

Step 7 | Remove the back cover

Remove the back cover.

Power on your phone and test all functions before reassembling.
Power down your phone completely.

Be cautious not to damage any components during handling.

Remove any remaining adhesive with a pair of tweezers or your fingers. If necessary, apply heat to assist in separation.

If using custom-cut adhesives, refer to the specific guide for instructions.
If using double-sided tape, refer to the relevant guide.