⚠️️ Before disassembling, do not forget to turn your phone off.
Disassembly/Repair of the mobile device Xiaomi Redmi Note 11 Pro (Xiaomi Redmi Note 11 Pro 2201116SG) with each step description and the required set of tools.
Step 2. Remove the tray
Use the ejection tool (aka Needle) or Paperclip. Push the tip all the way into the hole until the tray ejects, and then pull the tray of SIM cards out.
⚠️️ Pay attention! The tool must be inserted into a hole on the edge of the phone's housing. Do not press too hard. It may break the tray eject mechanism.
Step 3. Open the back cover
We recommend using a special heating device such as a separator machine, heat gun, or heating mat. It will simplify the process. You can use a home hairdryer, but you will have to make a nozzle by hand or have a suitable one in the kit to gently heat and concentrate the heat flow in the right place.
ℹ️️ The surface of the back cover must be heated to soften the adhesive underneath. The approximate heating temperature is 50° C / 125° F.
Use a thin plastic film or pick for separation. To facilitate the process, you can use isopropyl alcohol. It is often the most difficult to pass the tool between the parts to be divided. Choose the far edge from the FFC cables or buttons.
Do not use a lever or any force for separation that could damage the elements inside.
Step 4. Unscrew the screws
Using a screwdriver Phillips 1.5 mm (PH#000), unscrew the seventeen screws.
Step 5. Open the middle cover
Pry over the edges. Move an opening tool along the edge detach the clips and remove the middle cover with transmission lines and pads for antenna. The middle cover protects the printed circuit board (PCB).
Try to lift the cover by the edges and don't push anything too far inside, so as not to accidentally break or short-circuit anything on the circuit board.
Step 6. Disconnect the battery connector
Disconnect the two battery connectors as soon as possible. It is better to use a non-metal or plastic tool to avoid any damage.
ℹ️️ The Xiaomi Redmi Note 11 Pro 2201116SG model has a battery BN5E with 5000 mAh capacity (aka rechargeable battery).
Step 7. Disconnect the connector
Pry up the fingerprint sensor cable connector and remove the middle cover.
Step 8. Remove the cameras
Pry up the connectors and remove the four rear cameras and one front (selfie) camera.
⚠️️ Some cameras my be glued to the display frame, so we have to disconnect connectors and unstick them after removing the motherboard.
Step 9. Disconnect the connectors
Pry up the connectors of the display module cable, inter-board cable, and coaxial cable.
⚠️️ Be careful when removing the cables from the connectors, the cables are pretty thin, and it is easy enough to break them or damage the contact tracks inside.
Step 10. Remove the motherboard
Carefully remove the printed circuit board. There is no need to use a lever or try to reach the circuit board by force. Make sure that nothing is getting in the way or holding the circuit board.
The motherboard, also, may be attached with attachments like latches or hooks, be careful.
⚠️️ Do not bend the circuit board when removing it or push tools under it. Unbeknownst to yourself, you can damage components or cables from the inside.
Step 11. Unscrew one screw
Using a screwdriver Phillips 1.5 mm (PH#000), unscrew one screw securing the loudspeaker.
Step 13. Disconnect the connectors
Disconnect the coaxial cable connector, inter-board cable connector.
Step 14. Remove the daughterboard
Remove the sub-board. It may be glued to the frame or attached with attachments like latches or hooks, so be careful.
ℹ️️ The sub-board contains a charging port (Micro-USB), microphone, cards holder, spring contacts for the speaker, vibration motor, and an antenna unit.
⚠️️ It is not necessary to insert the tool underneath when removing the sub-board. Internal components could be damaged.
Step 15. Remove the battery
There is a brown tab at the middle of the battery. Just hold the display frame on the sides, pull the tab up and remove the battery. Btw, we have to read on the tab which part of the tab to pull.
Step 16. In the display frame remained
ℹ️️ In the display frame remained: the earpiece speaker, coaxial cable, inter-board cables, and vibration motor.
Detailed disassembly instructions of Xiaomi Redmi Note 11 Pro in the video, made by our mobile repair & service center:
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