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Xiaomi redmi note 14 Repair Manual
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Xiaomi redmi note 14 Repair Manual

Xiaomi redmi note 14 Repair Manual

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Repair Manual
Version: O7E
https://spare-parts.mi.com/

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Summary of Contents for Xiaomi redmi note 14

  • Page 1 Repair Manual Version: O7E https://spare-parts.mi.com/...
  • Page 2 Table of Contents Instructions for Use 4 ------ Notes 5 ------ Repair Precautions 7 ------ ESD (Electrostatic Discharge) Precautions 7 ------ OTA Upgrade 8 ------ Icon Description Materials and List 9 ------ Material 10 ------ List Tool Preparation 11 ------ Tools 16 ------ Consumables (adhesives and other materials)
  • Page 3 Table of Contents Disassembly 17 ------ Remove the SIM Card Tray 18 ------ Heating up the Phone 21 ------ Remove the Battery Cover Assy 23 ------ Remove the Screws 24 ------ Remove the Middle Frame Assy 26 ------ Remove the Camera Module 28 ------ Remove the Main Board Assy 30 ------...
  • Page 4 Xiaomi reserves the right to modify this document or the device described herein at any time without obligation to provide notice of such changes.
  • Page 5 • If you need to access the device's fault data or require a more detailed diagnosis, please visit a Xiaomi Service Center. • If you need to replace an unsold part, please visit the Xiaomi Service Center and get further guidance.
  • Page 6 Instructions for Use Before performing repairs, always wear appropriate safety equipment. Xiaomi is not responsible for any injuries that may occur as a result of not wearing appropriate safety equipment. Please read the Disassembly and Assembly Tools carefully for a list of tools required to assemble and disassemble the device.
  • Page 7 Instructions for Use ESD (Electrostatic Discharge) Precautions Electrostatic discharge is the sudden flow of electricity between two charged objects due to contact, short circuit, or dielectric breakdown. ESD can negatively affect mobile devices, especially electronic components. • It is recommended to use ESD-safe (antistatic) equipment, such as antistatic wrist straps and gloves, and ESD-safe mats when repairing devices.
  • Page 8 Icon Description Icon Description Warning: Situations that could cause harm to yourself or others; Caution: Situations that may cause damage to your device or other equipment; Tip: Notes, usage tips, or other information; Customers: If you are the customer, please refer to the precautions/operations under this icon;...
  • Page 9 Materials and List Materials and List Materials — 9 —...
  • Page 10 Materials and List List Serial number Name O7E_001 Middle Frame Assy O7E_002 TP Module O7E_003 Battery O7E_004 USB board assy O7E_005 Speaker assembly O7E_006 Receiver O7E_007 Main camera O7E_008 Macro camera O7E_009 Depth camera O7E_010 FPC Assy-Side key O7E_011 Front camera O7E_012 Fingerprint module O7E_013...
  • Page 11 Tool Preparation Tools and Materials Tools When disassembling and assembling the phone, please be sure to wear protective equipment to prevent injury. Target Tool Name Diagram Details users Prevent accidents during Safety Goggles repair (protective equipment). Safety Gloves Prevent accidents during (ESD safe, repair (protective cut-resistant)
  • Page 12 Tool Preparation Target Tool Name Diagram Details users Prevent static electricity ESD Safe Mat from damaging the device (recommended). Used to remove the SIM Ejection Pin card tray (necessary tool). Phillips Used to remove screws Screwdriver (necessary tool). For removing wiring harness connections and Plastic Pry Bar other components...
  • Page 13 Tool Preparation Target Tool Name Diagram Details users Used for disassembly and assembly of small parts (necessary tool); Please do not use ESD Safe metal tweezers to Tweezers avoid scratching the device and damaging it with static electricity. Used to remove the battery cover and other parts (necessary tool);...
  • Page 14 Tool Preparation Target Tool Name Diagram Details users Used to heat when removing the back cover (necessary tool); Heating Bag Use the tabs as handles when heating to avoid burns. For heating the Heating Micro-wave Oven Bag (necessary tool). Used to position the Adhesive Backing adhesive when sticking Fixing Tool...
  • Page 15 Tool Preparation Target Tool Name Diagram Details users When removing the battery cover, heat the adhesive on the battery Heating Platform cover to make it easier to separate the battery cover from the device. Used when pressing the battery cover, so that the Crimping Tool pressure can be precisely controlled.
  • Page 16 Tool Preparation Consumables (adhesives and other materials) Consumables may vary depending on the repair parts, country, region or repair provider. The content in the table is for reference only. Target Name Diagram Details users Used when attaching the Battery Cover battery cover to the Adhesive device.
  • Page 17 Disassembly and Assembly Disassembly Before disassembly • Make sure your phone data is backed up to prevent loss of important data. • Disconnect the device from the power source and turn it off. • Wear an anti-static wrist strap and connect it to a grounded ESD safety mat. •...
  • Page 18 Disassembly and Assembly 2. Heating up the Phone: If you are the customer, please refer to the following method: • It is possible for the device or battery to be damaged by heat. • Do not heat the device in a microwave. Doing so could cause an explosion. •...
  • Page 19 Disassembly and Assembly (2) Take the Heating Bag out of the microwave. Use the label as a handle when removing the Heating Bag to avoid burns. (3) Place the phone on the Heating Bag and heat it for about 1-2 minutes. —...
  • Page 20 Disassembly and Assembly If you are a professional authorized repairer, please refer to the following method: (1) Use a heating platform and wait for it to heat up to about 70 degrees Celsius. (2) Place the phone on the heating platform and continue heating for 1-2 minutes. Please heat the device within the specified temperature and time, otherwise it may be damaged or affect subsequent operations.
  • Page 21 Disassembly and Assembly 3. Remove the Battery Cover Assy: (1) Use a Suction Cup and Plastic Pry Tool to gently cut the adhesive on the Battery Cover. Use the Plastic Pry Tool to slide along the left edge of the device to cut the glue, leaving the Plastic Pry Tool on the left edge side when finished to prevent the adhesive from resealing.
  • Page 22 Disassembly and Assembly (2) Use the Suction Cup and Plastic Pry Tool, as described above, cut away all the glue around the Battery Cover assembly, then carefully separate the Battery Cover assembly from the device. • Be careful not to damage the Battery Cover Assy, as excessive force may damage the Battery Cover Assy.
  • Page 23 Disassembly and Assembly 4. Remove the Screws: (1) Use a needle screwdriver to remove the screws at the top and bottom. Check the number of screws that have been removed and keep them in a safe place to ensure that no unassembled screws are left inside the device during the assembly process.
  • Page 24 Disassembly and Assembly 5. Remove the Middle Frame Assy: (1) Use the Plastic pry tool to separate the Middle Frame Assy clips from the device. (2) Carefully remove the Middle Frame Assy from the phone. When operating near the power button, be careful to avoid accidental touch or damage. (3) Use tweezers to remove the LED Board Assy from the Middle Frame Assy.
  • Page 25 Disassembly and Assembly (4) Use tweezers to disconnect the battery cable and FPC cables in turn. • For your safety, always disconnect the battery connector first. • Be careful not to damage the battery. — 25 —...
  • Page 26 Disassembly and Assembly 6. Remove the Camera Module: (1) Use tweezers to remove the Blackout tape. Please remove the tape gently along the direction of the tape and avoid excessive force to ensure that the tape maintains its integrity during subsequent assembly. (2) Disconnect and remove the Depth camera.
  • Page 27 Disassembly and Assembly (4) Disconnect and remove the Macro camera. Do not touch the camera lens directly during operation to avoid scratching the lens. (5) Disconnect and remove the Front camera. • Do not touch the camera lens directly during operation to avoid scratching the lens. •...
  • Page 28 Disassembly and Assembly 7. Remove the Main Board Assy: (1) Use tweezers to disconnect the Coaxial Cable, and remove the Main Board Assy from the device. Carefully lift the Mainboard Assy with tweezers and remove the Mainboard Assy, being careful not to damage the PBA board. •...
  • Page 29 Disassembly and Assembly (3) Use tweezers to remove the FPC Assy-Side key. Do not use metal tweezers or other hard tools as they may scratch the device. Use ESD Safe Tweezers to cut the adhesive between the FPC Assy-Side key and the device.
  • Page 30 Disassembly and Assembly 8. Remove the Coaxial Cable: (1) Use tweezers to disconnect the TP Module from the FPC cable. Do not use metal tools during operation to avoid scratching the equipment. (2) Disconnect the FPC cable from the USB board assy. Do not use metal tools during operation to avoid scratching the equipment.
  • Page 31 Disassembly and Assembly (4) Disconnect the Coaxial Cable from the USB board assy. (5) Remove the Coaxial Cable from the device. • Be careful not to damage the wiring harness interface and surrounding components during operation. • Do not pull the cable directly when disconnecting to avoid breaking it. •...
  • Page 32 Disassembly and Assembly 9. Remove the USB Board Assy: (1) Use tweezers to remove the Speaker assembly. Do not use metal tweezers or other hard tools as they may scratch the device. (2) Remove the Fingerprint module. Do not use metal tweezers or other hard tools as they may scratch the device. (3) Remove the USB board assy from the device.
  • Page 33 Disassembly and Assembly (4) Remove the Motor. When clamping components, use appropriate force to avoid damage to the components due to excessive force. — 33 —...
  • Page 34 Disassembly and Assembly 10. Remove the Battery: (1) Peel off the battery peel-off sticker. (2) Remove the battery and remove the Easy release adhesive remaining on the device. Be careful not to damage the battery. You can use special alcohol to help remove the adhesive, or use the microwave to heat the heating bags, then heat the device before removing it.
  • Page 35 Disassembly and Assembly 11. Remove the TP Module: • It is possible for the device or battery to be damaged by heat. • Do not heat the device in a microwave. Doing so could cause an explosion. • Follow the heating bag’s instructions for heating. The recommended time for heating the bag is 50 seconds in a 1000W microwave and 70 seconds in a 700W microwave.
  • Page 36 Disassembly and Assembly (3) Use a Plastic pry tool to gently separate the TP Module from the device. Use the Plastic Pry Tool to slide along the left edge of the device to cut the glue, leaving the Plastic Pry Tool on the left edge side when finished to prevent the adhesive from resealing.
  • Page 37 Disassembly and Assembly Assembly Before reassembly, please confirm the following: • Thoroughly remove any residual adhesive. • Prepare the screws and new adhesive required for the device. • Wear an anti-static wrist strap and connect it to a grounded ESD safe mat. •...
  • Page 38 Disassembly and Assembly (2) Use tweezers to tear off the other side of the TP Module fixed adhesive protective film. When peeling off the other side of the TP Modulefixed adhesive, please try not to touch the surface of the TP Module fixed adhesive to avoid contaminating the TP Module fixed adhesive and affecting the bonding effect.
  • Page 39 Disassembly and Assembly (5) Press the TP Module against the device frame. • press the TP Module after fitting to ensure a firm fit. • When closing the TP Module, apply force evenly to ensure that the screen fits tightly around the edges.
  • Page 40 Disassembly and Assembly 2. Assemble the USB Board Assy: (1) Place the FPC cable in the correct position of the device and press to ensure it fits in place. • Attach the Copper Foil flatly. You can press lightly with your fingers to ensure it fits securely.
  • Page 41 Disassembly and Assembly (4) Place the USB board assy into the device and press gently to ensure it is firmly seated. (5) Use tweezers to connect the Coaxial Cable to the USB board assy and organize the Coaxial Cable. Be careful not to damage the wiring harness when arranging it. You can press the wiring harness interface with your fingers.
  • Page 42 Disassembly and Assembly (7) Install the speaker assembly in the correct position of the device. Press lightly to ensure it is installed in place. — 42 —...
  • Page 43 Disassembly and Assembly 3. Assemble the Main Board Assy: (1) Use tweezers to install the Receiver. • Press lightly to ensure it is installed in place. • Please do not use metal tweezers or other hard tools to avoid scratching the device. •...
  • Page 44 Disassembly and Assembly (4) Connect the FPC cable and Coaxial Cable. • You can press the wiring harness interface with your fingers. If you can clearly feel a "click" sound, it means the interface is connected in place. — 44 —...
  • Page 45 Disassembly and Assembly 4. Assemble the Camera Module: (1) Install the Depth camera. (2)Install the Macro camera. (3)Install the Main camera. (4)Install the Front camera. — 45 —...
  • Page 46 Disassembly and Assembly (5) Put the Blackout tape back on. • Do not touch the camera lens directly during operation to avoid scratching the lens. • Do not use hard tools during operation, as this may damage the Conductive Cloth or Graphite Sheet.
  • Page 47 Disassembly and Assembly 5. Assemble the Battery: If you are the customer, please refer to the following method: (1) Remove the Easy Release Adhesive protective film from the new battery. Please try not to touch the surface of the Easy Release Adhesive to avoid contamination of the Easy Release Adhesive and affecting the adhesion effect.
  • Page 48 Disassembly and Assembly If you are a professional authorized repairer, please refer to the following method: (1) Align the positioning hole of the Easy Release Adhesive with the positioning column of the Battery adhesive applicator. (2) Tear off the protective film, try to avoid touching the adhesive surface to prevent it from being contaminated and affecting the assembly effect, then align and attach the batteries.
  • Page 49 Disassembly and Assembly (4) Then tear off the protective film on the back of the Easy Release Adhesive, align the phone to the correct position, then put the Battery in. (5) Connect the Battery to the Mainboard Assy. — 49 —...
  • Page 50 Disassembly and Assembly 6. Assemble the Middle Frame Assy: (1) Use tweezers to install the LED Board Assy. • Please do not use metal tweezers or other hard tools to avoid scratching the device. (2) Align the Middle Frame Assy with the device. Press to ensure that the Middle Frame Assy is installed in place.
  • Page 51 Disassembly and Assembly (4) Use a screwdriver to install the screws into place one by one. Please check the number of screws installed to ensure that no unassembled screws are left inside the device. — 51 —...
  • Page 52 Disassembly and Assembly 7. Assemble the Battery Cover Assy: If you are the customer, please refer to the following method: (1) Tear off the new Adhesive-Battery Cover protective film, and carefully align it with the Battery Cover. Please try not to touch the surface of the Adhesive-Battery cover to avoid contamination of the Adhesive-Battery cover and affect the adhesion effect.
  • Page 53 Disassembly and Assembly (3) Tear off the protective film on the other side of the Adhesive-Battery Cover, install the Battery Cover, and press to ensure a firm fit. Before attaching the new Adhesive-Battery Cover, please clean the remaining Adhesive-Battery Cover. If you are a professional authorized repairer, please refer to the following method: (1) Put the Battery Cover Adhesive into the Adhesive backing fixing tool, and align it with the positioning hole.
  • Page 54 Disassembly and Assembly (3) Put the Battery Cover Assy into the Adhesive backing fixing tool, press gently to make the Battery Cover Adhesive and the Battery Cover Assy fit together. (4) Tear off the protective film on the other side of the Battery Cover Adhesive, align the Battery Cover Assy with the device, and press gently to install it in place.
  • Page 55 Disassembly and Assembly 9.Test Phone Functions: (1) Check whether the phone can be turned on normally. (2) Test whether the phone's Wi-Fi, Bluetooth, sound, camera and other functions can be used normally. — 55 —...
  • Page 56 To ensure proper assembly, it is recommended to calibrate and inspect the device after assembly. If any fault occurs during repair/assembly, calibration and inspection can help locate and identify the problem quickly. Please go to a Xiaomi Authorized Service Center for further assistance. Any fault caused by repair may incur additional repair costs.
  • Page 57 This manual is owned by Beijing Xiaomi Technology Co., Ltd. Any unauthorized use of this guide may be punished according to applicable international/domestic laws. — 57 —...

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O7e