Xiaomi Redmi Note 11 Pro Battery Replacement

Prepare an iOpener by applying it to the rear glass for at least two minutes to loosen adhesive.

Use a hair dryer, heat gun, or hot plate with caution: overheating may damage the display and internal battery.

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

• If the rear glass is cracked, try lifting it with strong tape or superglue the suction handle in place and allow it to cure.
• Lift the rear glass with the suction handle to create a small gap between the back cover and frame.

Be cautious of overheating when applying heat, following the iOpener instructions is crucial.

• Insert an opening pick into the created gap.
• Slide the opening pick to the bottom right corner to slice the adhesive.
• Leave the opening pick in place to prevent resealing of the adhesive.

Insert a second opening pick at the bottom edge.

• Slide it to the bottom left to break the adhesive bond.
• Leave both picks in place to hold the adhesive open.

Adhesive cooled down — risk of damage or incomplete removal.

• Use iOpener for 1-2 minutes to reheat the adhesive.
• Insert a third opening pick at the bottom left corner.
• Slide the pick along the left edge to slice the adhesive.

Leave the opening pick in the top left corner to prevent resealing.

Place a opening pick at the top left corner.

• Slide the opening pick along the top edge to cut the adhesive.
• Leave it in place, near the top right corner, to prevent resealing.

Insert a fifth opening pick under the top right corner.

• Slide the opening pick along the right edge of the rear glass to slice the remaining adhesive.
• The rear glass should be separated from the frame at this point. If there's still resistance, use an opening pick to separate any remaining adhesive.

Remove the rear glass.

• Clean relevant areas with isopropyl alcohol (>90%) and remove any debris.
• Apply new adhesive as necessary, ensuring proper coverage.
• Secure the back cover using pre-cut adhesive or double-sided tape.
• After installation, apply steady pressure to your phone for several minutes, using a stack of heavy books if needed.

Insert a SIM eject tool, SIM eject bit, or straightened paper clip into the hole on the SIM tray located at the bottom edge of the phone.

Press directly into the hole to avoid damaging internal components.

• Continue pressing until the SIM card tray is ejected.
• Remove the SIM card tray.

If you insert the tool into a microphone hole, do not worry as it's unlikely to cause damage to the microphone.

Remove the seventeen midframe screws using a Phillips screwdriver.

• The screws are 3.6 mm long.

Careful not to damage the clips.

• Insert an opening pick into the gap between the midframe and front panel assembly, starting at the bottom left edge of the phone, near the SIM tray slot.

Insert an opening pick at the bottom left corner and work it along the edge.

• The plastic clips may require force to dislodge.
• Continue working the opening pick around the edge of the phone.

Insert an opening pick at the left side and slide it along the edge to disengage the plastic clips.

Insert the opening pick into the top left corner of the device.

• Work your way along the top edge, gently prying the plastic clips.

Do not attempt to remove the midframe completely at this stage.

• Slide the opening pick along the right edge of the phone, starting from the top right corner.
• The goal is to release the remaining plastic clips without disconnecting the midframe cable.

Swing open the midframe towards the left, similar to opening a book.

• Free access will be obtained to the cable connector.
• Place the midframe adjacent to the left edge of the front panel assembly.

Disconnect the midframe cable by prying its connector straight up with a spudger.

Remove the midframe.

Disconnect the left battery cable and right battery cable using a spudger, prying the connectors straight up from their socket.

Avoid piercing or deforming the battery when handling it, as this may lead to chemical leaks or fires.

• Remove the orange adhesive strip marked with an A using a pair of blunt nose tweezers or your clean fingernail.

Repeat the pull-tab procedure used earlier for the A label, but target the orange adhesive strip marked with a B.

Identify and grasp both pull-tab ends labeled A.

• Pull up on the adhesive strip to lift the battery out of its recess.
• The battery will swing into an upright position.

If lifting is difficult, apply a heated iOpener to the screen for two minutes to loosen adhesive.

• A hair dryer, heat gun, or hot plate can also be used, but exercise caution to avoid overheating the device.

Peel the battery off remaining adhesive.

Remove the battery.

Do not reinstall a damaged or deformed battery — potential safety hazard.

• Apply new adhesive into device at old adhesive locations, not directly on battery.
• Position new battery correctly, then press firmly into place.

• To align the battery, temporarily reconnect it to the motherboard
• Disconnect battery after seating.