Xiaomi Mi 8 Lite is a popular smartphone with an elegant design and a durable body, but even it is not immune to breakdowns. If you plan to replace the battery, clean the connectors or install a new SIM card, sooner or later you may need to remove the back cover. However, many users face difficulties: the lid is glued, and the wrong actions are fraught with cracks, damage to the plumes or loss of sealing.
In this article, you will find a step-by-step manual for the Mi 8 Lite, a list of tools you need, and a list of common errors that cause breakdowns. We will also tell you how to prepare your phone before disassembling and what to do if the lid fails. Information is relevant for all model modifications (including versions with 4/64 GB and 6/128 GB of memory).
⚠️ Warning: Disassembling your smartphone will void the warranty (if it is still valid) and may cause permanent damage.If you are unsure of your skills, contact your service center.
Preparation for disassembly: tools and security measures
Before you start removing the lid, make sure you have everything you need. Xiaomi Mi 8 Lite has a glue layer around the perimeter of the body, so a regular screwdriver will not be enough.
- 🔧 Plastic blade (or mediator) - to separate the cover without scratches.
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧲 Suction cups (2 pcs) - help to evenly pull the cover.
- 🔍 Loop or magnifying glass - for inspection of plumes and contacts.
- 📦 Container for screws - so as not to lose small details.
Also, prepare a clean workspace with good lighting. Put soft cloth on the table (like a microfiber) so that you don't scratch the screen or the case. If you're disassembling the phone for the first time, take a picture of each step - this will help you put it back together properly.
⚠️ Warning: Don't use metal tools (knives, screwdrivers) to separate the lid! They can damage antenna lines or leave traces on plastic. The glue on the Mi 8 Lite is strong enough, and brute force is not an assistant here.
Step-by-step: how to remove the back cover
The process of removing the lid on the Xiaomi Mi 8 Lite requires patience and accuracy.
- Turn off the phone and remove the tray for SIM-This will prevent short circuit and damage to the communication module.
- Heat the edges of the body with a hair dryer for 2-3 minutes. Keep the device at a distance of 10-15 cm to avoid overheating the battery. The glue should become elastic, but not melted.
- Place the suction cups closer to the bottom of the phone (where the USB-C connector is located). Pull up carefully - a small gap should appear.
- Put a plastic blade in the gap and slowly lead it along the edge, separating the lid. Take your time: the glue can be unevenly distributed.
- Remove the lid when all the clips are snapped. Don't pull it too hard -- there's a fingerprint scanner plume attached to the lid!
If the cover fails, reheat the problem area. Do not apply excessive force, which can cause the display plume to rupture or damage to the antenna contacts.
☑️ Checklist before lid removal
What to do if the lid is not removed?
Sometimes, even after heating, the Mi 8 Lite lid remains tightly glued to the top, and here are the possible causes and solutions:
| Problem. | Possible cause | Decision |
|---|---|---|
| The cover doesn't go away despite the heat | The glue is too old or of poor quality | Repeat the heating by increasing the temperature to 85°C (not higher!) |
| There was a creak, but the gap does not increase. | The hull clips are unclicked. | Check all corners with a spatula - perhaps one clip caught |
| The cover is only amenable to one side. | Uneven heating | Heat the problem area again, then try again. |
| I hear a crackle in the ward. | Damage to antenna lines | Stop the disassembly and contact the service |
If you encounter a crack or a crunch, stop disassembling immediately, which could mean that the blade has touched the flexible boards or antenna tracks, in which case it is better to entrust the work to professionals.
⚠️ Warning: Some Mi 8 Lite batches (especially early releases) were glued with excess. If the lid does not remove after 3-4 attempts, do not take risks - contact the service center with ultrasonic cleaning equipment.
Common Mistakes in Disassembly and How to Avoid Them
Even experienced users sometimes make mistakes that lead to breakdowns, and here are the most common ones:
- 🔥 Overheating of the battery - keeping the hair dryer too close or for a long time.
- 🛠️ Using metal tools – scratches the body and damages antenna lines.
- 🤲 Sharp lid separation – the risk of tearing the plume of the fingerprint scanner or display.
- 🔋 Disassembly with the phone on - can cause a short circuit.
- 🧩 Loss of screws or clips - will lead to backlash of the cover after assembly.
To avoid these problems, follow the instructions in stages and take your time. If you feel resistance, it's better to warm up the body again than to use force. Remember, repairs are more expensive than careful disassembly.
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If you are planning to replace the battery, pre-order a battery adhesive tape - you will need it to fix the new battery. Original tapes can be found under Art. B7563-1 for the Mi 8 Lite.
How to put your phone back together: Assembly tips
Building Xiaomi Mi 8 Lite after removing the lid requires as much attention as disassembly.
- Check the fingerprint scanner plume - it should fit tightly to the connector on the motherboard.
- Clean the contacts of dust and old glue with isopropyl alcohol (90%+).
- Apply new adhesive around the perimeter of the case. You can use 3M 9448A double-sided tape or B-7000 special adhesive.
- So if you pin the clips, they have to click on the clip, and if the clip is broken, you can replace it with a donor phone.
After assembly, turn on the phone and check:
- 📶 Network operation (call, check mobile Internet).
- 🔋 Charging the battery (connect the charger).
- 👆 The work of the fingerprint scanner and camera.
If something doesn't work, take the phone apart again and check the plumes' connection.
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The most common build error is forgetting to plug the fingerprint scanner plume, which causes the sensor to fail, even though the phone itself turns on normally.
When you don’t need to be disassembled: alternative solutions
Sometimes, removing the Mi 8 Lite cover can be avoided.
- 🔄 Replacement SIM-map → Use a paper clip to remove the tray (the hole next to the power button).
- 📸 Cleaning the cell → Use a soft brush or spray with compressed air.
- 🔋 Charging problems → Try another cable or power supply before disassembling.
- 🎵 Bad sound in the dynamics → Check the settings in the settings → Sound.
If the problem is not solved and the disassembly is inevitable, weigh the risks again. For example, replacing the battery in the service will cost 1,500-2,500 ₽, While self-repairing can lead to additional costs if something goes wrong.