Xiaomi Mi 6 Pro is the flagship smartphone of 2017, which is still in demand due to the powerful filling and durable metal body. However, over time, even such a reliable device can experience problems from battery wear to camera breakdown or speaker. Most repairs require removing the back cover - an operation that seems simple only at first glance.
In this article, you will find step-by-step instructions with photos and videos, detailed analysis of the necessary tools, as well as unique tips for preventing damage to plumes and buttons. We will explain why the classic method with a mediator will not work here, how to warm up the adhesive base and what to do if the lid is glued too tightly, and we will pay special attention to the risks of damage to antenna lines, the most vulnerable part when disassembling the Mi 6 Pro.
If you've never taken a smartphone apart before, it's no problem. We're designed for beginners, but we're also good for experienced craftsmen. The rule is patience and accuracy. One wrong move can be costly to repair, so carefully study the nuances before you start.
Preparation for the review: tools and security measures
Before you start dismantling the back cover of the Xiaomi Mi 6 Pro, you need to prepare the workspace and tools, which is often underestimated, but it is on this stage that 80% of the success of the operation depends.
- 🔧 Plastic mediators (thickness 0.15–0.2 mm) – metal blades can scratch the body.
- 🔥 Dryer or thermo-air station with temperature control (optimum 60-80)°C).
- 🧲 Suction cups (better two: large and small) for the initial lid suction.
- 📏 Thin plastic card or specialized tool for disassembling smartphones.
- 🔋 Isopropyl alcohol (90%+) glue-residue.
- 🧴 Double-sided tape or glue B-7000 reverse-assembly.
Pay special attention to temperature. Overheating of the housing above 90°C can damage the battery or display, and insufficient heating will not soften the glue. Use a dryer at minimum power, keeping it at a distance of 10-15 cm from the smartphone.
⚠️ Warning: Never direct hot air to a camera or speaker, which can melt the safety nets or damage the optics. Also avoid getting alcohol on the plumes and chips: it can cause corrosion of contacts.
Before starting work, it is mandatory to:
- 🔌 Turn off your smartphone and remove it. SIM-map.
- 📱 Remove the cover and protective glass (if any).
- 📸 Take a picture of the original state of the body - this will help with the reverse assembly.
- 🧤 Wear an antistatic bracelet or periodically touch a grounded object.
Why Mi 6 Pro is so hard to disassemble: design features
Xiaomi Mi 6 Pro differs from most smartphones of the time with a unique system of mounting the rear cover. Unlike the Mi 5 or Mi 8, where the lid was held mostly on the latches, here the manufacturer used a combination of:
- 🧩 Adhesive layer around the perimeter (especially dense in the area of the chamber).
- 🔗 Metal latches in the upper and lower parts of the housing.
- 📡 Antenna lines soldered to the cover (damage leads to loss of network).
The biggest problem is the antenna contacts, which are located along the side faces, and if you're sloppy underdog by the mediator, they can be easily torn off the board, which will lead to loss of signal. LTE/Wi-Fi. Also at risk:
- 🔊 Dynamics – glued to the cover and can remain on it during dismantling.
- 📷 Camera - attached to the body, but the plume is easily damaged.
- 🔋 Battery - glued to the middle frame, and its deformation is fraught with bloating.
Another nuance is the hidden screws under the plugs. Unlike the Mi 6 standard version, the Pro version added two additional screws under decorative stickers near the end of the model. USB-They're easy to miss, but without unscrewing, the lid won't give in.
| Element | Risk of damage | Effects of consequences | How to avoid |
|---|---|---|---|
| Antenna lines | High-pitched | Loss of network, Wi-Fi, Bluetooth | Use a thin mediator, warm up the edges |
| Camera plume | Medium. | The main/front camera is not working. | Do not put the lid on the cell area |
| Dynamician | Low. | Distortion of sound or lack thereof | Warm up the bottom part longer |
| Battery | Medium. | Bloating, non-charging | Don't push the middle of the lid. |
Step-by-step: how to remove the back cover without damage
Now, to the most important stage, follow the instructions strictly by steps, without missing a single item, and for clarity, we recommend watching video guides in parallel (links at the end of the article).
Step 1. Warming up the hull
Set the hair dryer at a temperature of 70-80°C and for 2-3 minutes evenly warm up the edges of the smartphone, paying special attention:
- 📱 Corners (there's the most glue).
- 🔊 Lower part (near the speaker).
- 📷 Top part (near the camera).
Step 2. Unplug the cover
After warming up:
- Stick a large suction cup to the bottom of the lid (near the top of the suction). USB-port).
- Pull it up carefully - a small gap should appear.
- Insert a thin mediator into the gap and slowly lead it along the edge.
Step 3: Separation of the body
As soon as the mediator passes 2/3 perimeter, the lid will start to move away:
- ⚠️ Do not pull the lid sharply - the latches can still be held inside.
- 🔧 Substitute the remaining areas with the second mediator.
- 📸 Take a picture of the location of the plumes before the complete removal.
Step 4: Turn off the plumes
After removing the cover, you will see:
- 🔋 Battery (glued to the middle frame).
- 📷 Camera plume (fixed with black tape).
- 🔊 Dynamic plume (may remain on the cover).
Disconnect them with a plastic spatula, putting the connectors on the side, not on top!
Warm up the body with a hair dryer (70-80)°C)|Attach the suction cup to the bottom|Insert the mediator in the gap that has appeared|Carefully guide the mediator around the perimeter|Take a picture of the location of the plumes-->
Frequent Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling the Mi 6 Pro. Here are the most common of them and ways to prevent them:
1. Damage to antenna lines
This is the most common problem. The antenna contacts in the Mi 6 Pro are thinner than in other Xiaomi models, and are located very close to the edge.
- 📶 Lack of network after assembly.
- 📶 Bad signal. Wi-Fi/Bluetooth.
- 📱 Message "SIM-map not found".
How to avoid: Use an ultra-thin mediator (0.1 mm) and warm the edges longer than usual.
2.Rupture of the camera plume
The main camera plume in the Mi 6 Pro has an additional mount, a black sticky tape, which, if it is sharply torn off, the plume can break.
- 📷 The camera's not turning on.
- 📷 A message appears: "I failed to connect to the camera".
How to avoid: before removing the cover, carefully tuck the tape with a plastic spatula.
Battery deformation
The battery in the Mi 6 Pro is glued to the middle frame with high-strength double-sided tape, and if you pull the lid too hard, you can:
- 🔋 Damage the battery (blown, leakage of electrolyte).
- 🔋 Break the heat paste off the processor.
How to avoid: if the lid does not lend itself, warm up the case again and use isopropyl alcohol to soften the glue.
⚠️ Warning: If the smartphone doesn't turn on after assembly, but when connected to charging, the battery icon shows, the problem is the disconnected power plume. Disassemble the device again and check the contacts on the motherboard.
If the contacts are off the plate, they can be soldered back with a soldering station and a thin solder, but it takes experience — without soldering skills. SMD-Alternatively, use a conductive glue (e.g. Permatex), but this is a temporary solution.—>
Reverse Assembly: how to properly glue the cover back
Putting the phone back together is as important as disassembling it, and it's all about getting the plumes connected to each other, and it's all about getting them connected to each other.
1. Surface cleaning
Remove the remnants of old glue from the lid and body with:
- 🧴 Isopropyl alcohol (for glue).
- 🧼 Toothbrush (for hard-to-reach places).
- 🧹 Compressed air (to remove dust).
2. Applying new glue
For the Mi 6 Pro, you can:
- 📏 Double-sided scotch 3M 9448A (0.13 mm thickness).
- 🧴 Clay. B-7000 (squirt).
- 🔥 Thermocleus (requires heat with a hair dryer after assembly).
Important: Do not apply glue to the speaker and microphone holes!
3. Connecting plumes
First, plug in:
- Battery plume (if disconnected).
- Camera plume (fix with black tape).
- The plume of the speaker (check that it does not twist).
4. Sticking the lid
Carefully apply the cover and:
- 🔧 Lock it with paint tape around the edges.
- 📦 Put your smartphone under load (for example, a book) for 1-2 hours.
- 🔥 When using heat glue, warm the edges with a hair dryer (60)°C) for better adhesion.
Alternative methods of removing the lid (if nothing helps)
If the Mi 6 Pro lid is not amenable even after repeated warm-up, alternative methods may be used, but they are more risky and require experience.
Method 1: Use of thread
It will require:
- 🧵 Capron thread (thickness 0.2–0.3 mm).
- 🔥 Hazel-dryer.
- 🧲 Suction cup for the initial dressing.
Algorithm:
- Warm up the body with a hair dryer.
- Put the lid on the suction cup and insert the thread into the gap.
- Carefully saw the thread along the edge (like a dental thread).
Method 2: Disassembly through the display
This is the last option, as it requires:
- 🔧 Screen removal (risk of damage to the touchscreen plume).
- 💰 Purchasing new display glue.
- 🕒 Additional time for heating and disconnection.
Use only if:
- 🔧 The cover is damaged and it still needs to be changed.
- 📱 You have experience in disassembling smartphones.
Method 3: Chemical removal of glue
You can use:
- 🧴 Acetone (applied with a brush on the edges).
- 🧴 White Spirit (less aggressive but longer-acting).
Important: These substances can damage plastic parts, so use them point-by-point and quickly wash off with alcohol.
⚠️ Attention: If the smartphone stopped turning on after applying chemical solvents, it is likely that the solvent got on the motherboard, in which case ultrasonic cleaning of the board at the service center is required.
Video Instructions and Additional Resources
For a better understanding of the process, we recommend you to read the video guides. Here are the verified sources:
- 📹 Disassembly Xiaomi Mi 6 Pro from iFixit (English, subtitles): link.
- 📹 Detailed guide to remove the lid (Russian): link.
- 📹 Review of disassembly tools: reference.
It is also useful to study:
- 📖 The layout of the screws on Xiaomi Mi 6 Pro Teardown.
- 🛠️ Parts catalog for Mi 6 Pro on AliExpress or eBay.
- 💬 Forums (4PDA, XDA-Developers, where the nuances of repairs are discussed.
If you are planning to replace your battery or repair your camera, look out for specialized guides on these procedures – they require separate skills.