Mi 11 Battery Replacement - Xiaomi Mi 11

Step 1 | Heat the rear glass

Careful not to overheat the phone; display and internal battery can suffer from heat damage.

Prepare an iOpener for at least two minutes on the rear glass to loosen adhesive.
Alternatively, use a hair dryer, heat gun, or hot plate (be cautious of overheating).

Step 2 | Insert an opening pick

Secure a suction handle to the rear glass, near the edge.

If the rear glass is cracked, use strong tape or superglue to secure the suction handle instead.

Lift the back cover with the suction handle, creating a small gap between the back cover and frame.
Apply more heat if necessary to soften the adhesive (follow iOpener instructions).

Insert an opening pick into the gap.

Slide the opening pick to the bottom right corner to slice the adhesive.

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

Step 3 | Slice the adhesive

Insert a second opening pick into the bottom edge of the phone.

Slide the opening pick towards the bottom left corner to cut through the adhesive.
Leave the pick in place to prevent the adhesive from resealing.

Step 4 | Slice the adhesive

Reheat the adhesive with an iOpener if it becomes hard to cut.

opening pick at the bottom left corner of your phone.
Slide the opening pick along the left edge to slice the adhesive.
Leave the opening pick in place to prevent resealing.

Step 5

Insert a pick under the top-left corner.
Slide it along the top edge to cut the adhesive.
Leave the pick in place at the top-right corner.

Step 6

Insert a 5th opening pick under the top right corner.

Slide the pick along the right edge of the rear glass to cut any remaining adhesive.

Step 7 | Remove the rear glass

Avoid touching any surfaces after applying cleaning solutions — risk of damage from oils on skin.

Remove the rear glass.
Clean areas with isopropyl alcohol (90% or greater), and apply new adhesive as needed.
Attach rear glass using pre-cut adhesive or double-sided tape.
Apply steady pressure to phone for several minutes after installation, using a stack of heavy books if necessary.

Step 8 | Unfasten the metal bracket screws

Remove the screws that secure the connector metal bracket using a Phillips screwdriver.

Two 4.4 mm-long screws.
One 4.9 mm-long screw.
Two 3.9 mm-long screws.

Step 9 | Remove the metal bracket

Remove the connector bracket with a pair of tweezers, pulling towards the battery.

Step 10 | Disconnect the flash assembly

Disconnect the flash assembly cable using the pointed end of a spudger.

Pry the connector straight up from its socket.

Step 11 | Disconnect the right battery cable

Locate the two battery connectors.

Disconnect both flex cables separately for complete isolation.
To remove the right battery connector, use a spudger to pry it straight up from its socket.

Step 12 | Remove the camera cover

Remove the camera cover, including the flash assembly, by carefully lifting it with your fingers or a pair of tweezers.

Lift from the edges to avoid touching sensitive camera lenses.

Step 13 | Unfasten the motherboard cover screws

Remove the motherboard cover using a Phillips screwdriver.

There are five 3.9mm-long screws to be removed.

Step 14 | Pry up the motherboard cover

Insert the opening pick under the bottom left edge of the motherboard cover.

Slide the pick along the left edge, prying the cover upwards.

Step 15 | Remove the motherboard cover

Remove the motherboard cover.

Step 16 | Disconnect the left battery cable

Disconnect the left battery cable using a spudger, prying the connector straight up from its socket.

Step 17 | Disconnect the left interconnect cable

Disconnect the left interconnect cable using a spudger.

Pry the connector straight up from its socket.

Step 18 | Disconnect the right interconnect cable

Disconnect the right interconnect cable using a spudger.

Pry the connector straight up from its socket.

Step 19 | Free the battery

Bend interconnect flex cables gently to avoid damage.

Flex the cables towards the charging port for battery tab access.
If needed, use small tape strips to secure cables on your workspace.

Step 20 | Peel off the battery pull-tabs

Risk of thermal event and chemical leakage if battery is punctured or bent.

Peel Adhesive Strip A off the battery using blunt nose tweezers or a clean fingernail.
Peel Adhesive Strip B off the battery using blunt nose tweezers or a clean fingernail.

Step 21 | Remove the battery

Grab both pull-tab ends labelled A and gently lift the battery out of its recess by pulling up on the orange adhesive strip.

Apply firm force if required; for extra help, apply a heated iOpener to the display's center to loosen the adhesive underneath.
Pull the battery off the remaining adhesive and remove it completely.

During reassembly, temporarily reconnect the battery to ensure correct alignment, then disconnect it once seated.

When replacing the adhesive sticker, clean the midframe area with isopropyl alcohol (>90%) and let it dry before applying new adhesive.