Xiaomi Mi 8 AMOLED & Digitizer Replacement

Potential safety hazard: Reusing a deformed lithium-ion battery after forcefully removing it.

Discharge battery below 25% before disassembling phone to reduce risk of fire or explosion.

Remove the lithium-ion battery for access to display cables due to phone's design.
Verify you have correct replacement part, as some screens come pre-installed in a new frame (chassis), requiring different procedure.
Purchase replacement adhesive for reattaching components during reassembly.

This guide replaces the AMOLED Screen & Digitizer while leaving original frame and motherboard intact. Proceed with caution, as incorrect part or improper installation may result in device malfunction or damage.

Step 1 | Rear Glass

Apply a iOpener to the rear glass, heating it until warm.

Wait for at least two minutes before proceeding.

Step 2

Secure a suction handle to the lower edge of the rear glass, as close to the edge as possible.

If the rear glass is cracked, use strong tape or superglue to secure the suction handle in place, allowing it to cure.
Lift the rear glass with the suction handle to create a gap between the glass and the frame.
Insert an opening pick into the gap.

If the glass doesn't budge, apply more heat using the iOpener instructions, taking care not to overheat.

Slide the opening pick to the bottom right corner of the phone.

Step 3

Insert a second opening pick at the bottom left corner, sliding it to cut the adhesive.

Leave both opening picks in place to keep the adhesive from resealing.

Step 4

Insert a third opening pick at the bottom left corner.

Slide the opening pick from the bottom left along the side of the device, cutting the adhesive.

Be careful not to cut the fingerprint flex cable; only insert the tip of the pick.

If the adhesive becomes too hard to cut, use your iOpener to reheat it.
Leave the pick in the top left corner to prevent re-adhesion.

Step 5

Insert a fourth opening pick under the top left corner of the rear glass.

Slide the opening pick along the top to cut the adhesive.
Leave the opening pick in the top right corner to prevent resealing.

Step 6

Insert fifth opening pick into top-right corner of phone.

Slide pick along right edge to cut remaining adhesive.

Pause: do not remove rear glass completely yet; fingerprint flex cable is still attached.

Step 7

Hold the rear glass firmly in place with one hand, then carefully lift and fold it to the left.

Exposing the fingerprint flex connector.

Step 8

Pry up and disconnect the fingerprint flex cable using a spudger.
Remove the rear glass.

Be sure to remove any remaining adhesive from the phone before applying new adhesive, using isopropyl alcohol and a lint-free cloth for cleaning.

Install the rear glass and apply pressure for several minutes to form a strong bond. A stack of heavy books on top can provide sufficient pressure.

Step 9 | Motherboard Cover with NFC

Remove all ten screws, eight with a 3.4 mm Phillips #00 head and two with a 3.5 mm Phillips #00 head.

Step 10

Insert an opening pick near the right edge of the motherboard cover.
Twist the pick sideways to gently pry up the motherboard cover

Step 11

Remove the motherboard cover and the NFC antenna together.

Step 12 | Battery Disconnect

Locate the battery flex cable at the bottom of the motherboard.

Pry up the battery flex cable using a spudger.
Disconnect the battery flex cable from its socket.

Step 13 | Battery

Use tweezers to gently peel off the black ends of the adhesive tabs from the battery.

Step 14

Be gentle when pulling out the adhesive tab under the battery.

Pull the tab slowly and steadily at a flat angle.
To avoid ripping, twist the tab around the tweezers as you pull.

Step 15

Remove the first adhesive tab located under the battery.

Step 16

Use a pair of tweezers to pull out the second adhesive tab underneath the battery.
If one is damaged, use isopropyl alcohol or a heated iOpener to loosen the adhesive, then pry out the battery with an opening pick or plastic card.

Step 17

Apply gentle pressure with an opening pick or plastic card to release the battery from its recess.

Continue prying until you have a secure hold on the battery.

Step 18

Reusing a deformed or bent battery can be hazardous.

Replace the battery with a new one.
Remove any remaining adhesive from the midframe using isopropyl alcohol and a lint-free cloth.
Apply new adhesive to the cleaned areas.

Step 19 | AMOLED & Digitizer

Use a spudger to pry up and disconnect the display flex cable.

Step 20

Peel the display flex cable away from the midframe using a pair of tweezers, as it's held by mild adhesive.

Step 21

Apply a heated iOpener to the display for 2 minutes to loosen the adhesive.

The adhesive is strong, so you may need to reheat and reapply the iOpener multiple times to get it warm enough.

Reheat as needed until the adhesive is sufficiently loosened.

Step 22

Apply a suction handle near the phone's bottom edge.

If the screen is cracked, use strong tape or superglue the suction handle in place and let it cure before proceeding.

Use the suction handle to lift the screen, then insert a small opening pick under the bottom edge.
Alternatively, try inserting a thin cutting tool (e.g., razor blade or playing card) if you cannot lift the screen.

Protect your eyes from loose glass shards.

Insert the opening pick near the bottom right corner and leave it there to prevent resealing of the adhesive.

Step 23

Insert the second opening pick into the bottom left corner of the device.

Leave the pick in place to prevent resealing of the adhesive.

Step 24

Insert a third opening pick at the bottom left corner.

For the Xiaomi Mi 8, use only the tip (about 2 mm) of an opening pick to cut adhesive along long edges.
Avoid inserting too far to prevent display glass separation from the AMOLED screen.

Do not try to insert the pick deeper than necessary.

Slide the tip up to the top left corner and leave it in place to prevent resealing of adhesive.

Step 25

Apply additional heat if adhesive becomes difficult to cut.

Insert the opening pick tip into the upper left corner of the phone.
Slide the opening pick along the top edge, cutting the adhesive.
Leave the pick in place at the top right corner.

Step 26

Insert the fifth opening pick tip into the top right corner of the phone.

Slide it along the right edge to cut the adhesive.

Be cautious not to remove the display all the way, as the display flex cable is still threaded through the midframe.

Step 27

Slowly separate the screen from the frame.

Cut any remaining adhesive.
Maintain access to the flex cable and ensure it's no longer stuck to the frame, then thread it through its gap.

Do not proceed without safely routing the flex cable.

Remove the screen from the device.
Wipe down the midframe with isopropyl alcohol and a lint-free cloth to remove any remaining adhesive, taking care not to touch the cleaned areas until fully dry.