OnePlus 9 Pro Battery Replacement

Discharge battery below 25% to avoid thermal damage.

• Disconnect all chargers and periphery devices.
• Power off the device before disassembling.

Tape over the rear glass with protective covering to prevent damage during handling.

Use a hair dryer to lightly heat the perimeter of the rear glass.

• Focus on the top-right corner, where there's adhesive deeper within the phone.
• Be cautious not to hold the hair dryer in one spot for too long to prevent internal damage.

Apply a suction handle as close to the bottom edge as possible.

• Pull up on the suction handle with strong, steady force to create a gap between the glass and the frame.
• If you have trouble creating a gap, apply more heat to further soften the adhesive.
• Insert an opening pick into the gap.

• Slide an opening pick around the perimeter of the rear glass to start slicing the adhesive.
• Insert additional opening picks as you slice to prevent resealing.

If cutting becomes difficult, the adhesive may have cooled down. Use a hair dryer to reheat it before proceeding.

Careful handling of the rear glass is necessary to avoid damage.

• Lift the rear glass upwards and remove it from the phone.
• Secure the rear glass with either pre-cut adhesive or double-sided tape during reassembly.
• Apply steady, strong pressure to the phone for several minutes after installing the rear glass. A stack of heavy books can provide additional pressure aid.

Apply gentle pressure with an opening pick or tweezers to begin peeling back the adhesive on the bottom of the wireless charging module.

Handle the cable with extreme care — it's easily damaged.

• Use a pick to carefully pry the flash module off its base on the bottom.
• Insert tweezers under the module to support it without causing damage.

Be cautious when disconnecting the cable, as it's prone to breakage.

Remove the motherboard cover using an eleven-screw removal process with a Phillips #000 screwdriver.

• Remove the eleven screws that are 4.8 mm in length.

Use a set of picks to carefully pry around the edges of the phone, working your way towards removing the motherboard cover.

Remove the motherboard cover.

Careful not to damage the press connector ribbon cable.

• Pry up the ribbon cable in the top right using a spudger.
• Disconnect the cable carefully.

Disconnect the interconnect cables using a spudger.

• Pry the connector straight up from its socket.

Bent or punctured batteries can leak chemicals and cause fires.

• Slowly pull up on the red tabs to remove the battery from the phone.
• If stuck, apply a heated iOpener to the screen for two minutes to loosen adhesive.
• Alternative heat sources: hair dryer, heat gun, or hot plate; be cautious not to overheat device.