Xiaomi Mi 9T Pro Battery Replacement - Xiaomi Mi 9T Pro

Step 1 | Heat the rear glass

Prepare an iOpener and apply it to the rear glass for at least two minutes.

Excessive heat can damage the display or internal battery, so be cautious when using a hair dryer, heat gun, or hot plate if you choose to use one.

Step 2 | Insert an opening pick

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

If the rear glass is cracked, the suction handle may not stick; try lifting it with strong tape or apply superglue and allow it to cure before proceeding.

Lift the rear glass with the suction handle to create a small gap between the back cover and frame.
If you have trouble creating a gap, apply more heat to soften the adhesive; follow iOpener instructions to avoid overheating.

Insert an opening pick into the gap, then slide it to the bottom right corner to slice the adhesive.

Leave the opening pick in place to prevent the adhesive from resealing.

Step 3 | Slice the adhesive

Insert a second opening pick at the bottom edge.

Move it toward the bottom left corner and slide it along the adhesive.
Leave both picks in place to prevent the adhesive from resealing.

Step 4 | Slice the adhesive

Reheat the adhesive with your iOpener for 1-2 minutes if it becomes hard to cut.

Insert a third opening pick at the bottom left corner of your phone.
Slide this pick along the left edge to slice the adhesive, then leave it in place.

Step 5

Insert a 4th opening pick under the top left corner.

Slide the pick along the top edge to cut the adhesive.
Leave it in place at the top right corner to hold the adhesive open.

Step 6

Insert a fifth opening pick under the top right corner.

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

Do not remove the rear glass yet, it may be stuck to the phone assembly near the camera due to residual adhesive.

Step 7 | Loosen the rear camera adhesive

Insert a plastic spudger or credit card into the gap between the rear glass and rear camera.

Place it at the right edge of the phone, near the rear camera.
Gently pry along the rear camera frame to cut through the adhesive.

Step 8 | Remove the rear glass

Remove the rear glass.

Clean the relevant areas with isopropyl alcohol (90% or higher) and apply new adhesive where needed.
Secure the new rear glass using either pre-cut adhesive or double-sided adhesive tape.

Apply strong, steady pressure to your phone for several minutes after installing the rear glass to help form a good bond.

A stack of heavy books can be used to apply even pressure.

Step 9 | Unfasten the motherboard cover screws

Remove the motherboard cover using a Phillips screwdriver. You will need to unscrew:

Eleven 3.9mm Phillips screws
One 2.3mm Phillips screw

Step 10 | Pry up the motherboard cover

Insert the tip of an opening pick under the left edge of the motherboard cover.

Flip the opening pick sideways to pry up the motherboard cover.

Step 11 | Remove the motherboard cover

Remove the motherboard cover using a pair of tweezers or your bare fingers.

Step 12 | Disconnect the battery cable

Disconnect the battery connector using a spudger.

Pry the connector straight up from its socket.

Step 13 | Disconnect the interconnect cable

Use a spudger to pry the interconnect cable connector straight up out of its socket.

Pry gently but firmly with a plastic or metal spudger.
The connector should release with minimal force.

Step 14 | Free the battery

Avoid sharp bends when handling the interconnect flex cable to prevent damage.

Fold the interconnect flex cable towards the charging port for better access.
Use a small piece of tape to secure the cable on your workspace, if needed.

Step 15 | Peel off the battery pull-tabs

Avoid damaging the battery — puncture or bending may cause chemical leaks or thermal events.

Use blunt nose tweezers or a clean fingernail to gently remove the orange adhesive strip labeled '1'.

Step 16

Repeat the pull-tab procedure for the remaining two tabs.

Use blunt nose tweezers or a clean fingernail to peel the orange adhesive strip (2) from one battery.
Peel the orange adhesive strip (3) from the other battery using similar tools.

Step 17 | Lift the battery

Hold the pull-tab end marked with a 3 and gently pull up on the orange adhesive strip to remove the battery.

Be prepared for possible resistance from the adhesive tabs, which can require some force to separate.

Alternatively, if the battery is stuck in place, apply a heated iOpener to the center of the display to loosen the underlying adhesive before removal.

Step 18 | Remove the battery

Peel off the battery from the remaining adhesive.

Remove the battery completely.

Never reinstall a damaged or deformed battery — safety hazard risk.

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

For correct positioning, apply new adhesive at old locations, not directly on the battery.

Firmly press the new battery into place.

Temporarily reconnect battery to motherboard during reassembly for alignment — disconnect after seating.