How to remove the fingerprint key of Xiaomi 5s
Recently, the problem of disassembling the fingerprint key of Xiaomi 5s has become a hot topic. Many users need to replace it due to fingerprint recognition failure or hardware damage. This article will introduce in detail the steps to disassemble the fingerprint key of Xiaomi 5s, the required tools and precautions, and attach relevant data for reference.
1. Preparations before disassembly

Before disassembling the fingerprint key of Xiaomi 5s, you need to prepare the following tools and materials:
| Tools/Materials | Purpose |
|---|---|
| screwdriver set | Used to remove the back cover and internal screws of the mobile phone |
| Suction cup or pry bar | Used to separate mobile phone back cover |
| Tweezers | For gripping small parts |
| Heat gun or hair dryer | Used to soften back cover glue |
| New fingerprint key module | Used to replace damaged fingerprint keys |
2. Detailed explanation of disassembly steps
1.Turn off the phone and remove the SIM card tray: Make sure the phone is completely powered off to avoid the risk of short circuit.
2.Heated back cover: Use a heat gun or hair dryer to heat the edge of the phone's back cover for about 1-2 minutes to soften the glue for separation.
3.Separate back cover: Use a suction cup or a pry bar to gently pry open the back cover. Be careful not to use excessive force to avoid damaging internal parts.
4.Remove internal screws: Use a screwdriver to remove the screws that secure the motherboard and fingerprint key module, and record the screw locations for subsequent installation.
5.Disconnect the fingerprint key cable: Use tweezers to gently lift the fingerprint button cable interface and disconnect it from the motherboard.
6.Take out the fingerprint key module: Take out the fingerprint key module from the fixing slot, being careful not to damage the surrounding circuits.
3. Install the new fingerprint key module
1.Install new modules: Place the new fingerprint key module into the fixing slot to ensure the position is accurate.
2.Connect cable: Insert the ribbon cable into the motherboard interface and press gently with tweezers to ensure a secure connection.
3.Fixing screws: Re-fix the motherboard and fingerprint key module according to the previously recorded screw positions.
4.Fitted back cover: Align the back cover with the phone body and gently press the edge to reattach the glue.
4. Precautions
| Things to note | Description |
|---|---|
| Avoid using too much force | Be gentle when disassembling to prevent damage to internal parts |
| Pay attention to the wiring direction | Inserting the cable backwards may cause the module to fail to work. |
| Make sure the power is off | Be sure to turn off the phone before disassembly to avoid short circuit |
| Use original accessories | Non-original fingerprint keys may affect the recognition effect |
5. Frequently Asked Questions
1.Q: What should I do if the fingerprint key cannot be used after disassembly?
A: Check whether the cable connection is firm, or try to reinstall the module.
2.Q: How to solve the problem of glue failure on the back cover?
A: You can use special adhesive for mobile phones to reattach the back cover.
3.Q: Why is the fingerprint recognition speed slowing down?
A: It may be that the new module is not calibrated. It is recommended to restart the phone or re-enter the fingerprint.
Summary
Disassembling the fingerprint key of Xiaomi 5s requires certain hands-on skills and patience. Following the above steps can effectively reduce the risk. If you are not confident in your own skills, it is recommended to seek help from professional maintenance personnel. Among the recent hot maintenance topics, Xiaomi 5s fingerprint key problems account for about 15%, reflecting the universality of this problem.
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