Modern fitness trackers Xiaomi Mi Band series have proven to be reliable and durable devices, but active operation often leads to mechanical damage to the screen. broken glass or improper operation of the OLED matrix turn a useful gadget into a useless piece of plastic that requires immediate intervention. Owners often face the dilemma of buying a new tracker or trying to restore the old one.
The process of replacing the display with Xiaomi Mi Band 6 is technically possible, but requires high accuracy, the availability of special tools and understanding of the architecture of the device. The design of the bracelet does not imply disassembly by the user, which makes the process difficult for beginners.
In this article, we will discuss the steps of dismantling the damaged module, consider the necessary tools and answer frequent repair questions. It is important to understand that the risk of damage to the plume or battery during inept actions remains high. The adhesive base of the Mi Band 6 display is glued to the frame, which requires the use of heat for safe removal.
Tools and workplace preparation required
Before any electronic manipulation begins, you need to have a properly equipped workspace. Good lighting and a clean table are basic requirements that can lead to the loss of small screws or dust entering the case. You will need a specialized set of tools that are not always in the home medicine cabinet.
The main tool will be a thin metal scalpel or a special mediator to open the cases, also need a hair dryer (construction or household with a narrow nozzle) to soften the glue, tweezers with thin curved ends and a suction cup. Be sure to prepare isopropyl alcohol for cleaning surfaces and B-7000 or similar glue to fix the new screen.
- 🔧 Thin screwdriver or scalpel for tweaking components.
- 🔥 Hair dryer or thermoplatform for heating the adhesive layer.
- 🧪 Isopropyl alcohol and degreasing agent for surface preparation.
- 📎 Tweezers with antistatic coating for working with plumes.
Careful handling of sharp objects and heaters is recommended, and an antistatic bracelet is recommended to prevent static damage to electronics, although the risk for the Mi Band 6 is lower than for smartphones.
Dismantling the tracker capsule from the strap
The first step in the repair is to remove the main board with the screen, the so-called capsule, from the silicone strap. Unlike previous models, the Mi Band 6 uses a latch system that can become tighter or loose over time. The process seems simple, but requires the right angle of application of force.
Turn the bracelet downwards, find a notch on the inside of the strap where you can see the end of the capsule, and carefully press the thumb on the convex part of the capsule on the back, while pushing it out of the strap, and if the capsule is sitting tight, you can slightly pull the edge of the strap in the opposite direction.
⚠️ Warning: Never use metal tools to push the capsule out of the strap, as you can scratch the plastic of the case or damage moisture seals.
Once removed, inspect the case for cracks, if the plastic is intact, you can proceed to the next step, if there are chipped, the leakage of the device will be disturbed even after the screen is replaced, in which case further repair may not be advisable.
☑️ Checking before disassembly
Technology of disassembling and removing the old display
The most difficult step is to separate the display module from the plastic frame of the case. The screen in the Xiaomi Mi Band 6 is glued around the perimeter with a special water-resistant glue. To remove it, you need heating. You should not heat the device too much so as not to damage the battery or deform the plastic.
Using a hair dryer, evenly warm the face of the bracelet for 1-2 minutes. The temperature should not exceed 80-90 degrees Celsius. After warming up, insert a thin scalpel blade or mediator into the junction between the screen and the frame. The movements should be sliding, not stabbing, so as not to break through the matrix.
Carefully walk around the perimeter with the blade, gradually separating the display. If you feel strong resistance, apply heating again. The display plume is connected to the board very close to the edge, so act with utmost care at the bottom of the device.
- 🌡️ Heat the device gradually by checking the temperature with your finger.
- 🔪 Move the instrument parallel to the screen plane.
- 🚫 Avoid sharp jerks so as not to break the plume.
Risks of screen removal
Comparison of compatible display modules
When buying a part, it is important to understand the differences between original parts and analogues. The market is saturated with different options, and choosing the wrong module can lead to problems with color reproduction, brightness or lifespan.
Original OLED displays offer deep black and high energy efficiency. Copies are often made using IPS or low-quality OLED technology, which affects viewing angles and energy consumption. Below is a table of the main differences.
| Characteristics | Original OLED | Quality copy | Cheap analogue |
|---|---|---|---|
| Technology | AMOLED | IPS / TFT | TFT |
| Brightness | High (up to 450 nits) | Medium | Low. |
| Energy consumption | Low. | Average. | High. |
| Black. | Saturated | Grey | Light grey |
When choosing a part, pay attention to the presence of a connector. Connectors may vary in the number of contacts or their location.Be sure to check the marking of the plume with your damaged screen before buying.
💡
Buy a display with a frame. This will greatly simplify the assembly process, since you do not have to glue the screen and align it yourself, which is almost impossible to do at home without special equipment.
Installation of a new screen and assembly of the device
Once the old module is successfully dismantled, the seat must be carefully prepared, the glue residue removed with alcohol and a plastic blade, and the surface must be perfectly clean and fat-free, otherwise the new screen will lie unevenly or air bubbles will be visible.
Apply a thin layer of B-7000 glue or bilateral tape around the perimeter of the new frame. Carefully stow the display, combining the plume with the connector on the board. Press the screen evenly across the area to ensure a tight fit.
Connect the plume to the characteristic click. Don't put too much effort. Once connected, check the health by briefly closing the contacts of the battery (if it was turned off) or connecting the charging. If the image appears, you can fix the frame.
⚠️ Warning: Do not turn the device on completely until the glue is finally assembled and dryed, this will help to avoid short circuits in case of moisture or metal particles.
For final fixation, place the device under the press (for example, put a book on top) for 1-2 hours, this will ensure a reliable adhesion of the glue to the plastic.
Functional check and calibration
After assembly, you need to do a full diagnostic of the device. Turn on the tracker and check all the basic functions: time display, touch screen operation, reaction to shaking. Pay special attention to the edges of the screen - the touch screen should respond throughout the area.
Go to the Mi Fitness (or Zepp Life) app and check the data sync. Update the device's firmware to the latest version, as the new display may require up-to-date drivers to work brightness and colors correctly.
- 📱 Check the responsiveness of the touch layer in all corners.
- 💡 Evaluate the uniformity of the backlight when always on display is enabled.
- 🔋 Check the battery discharge rate on the first day.
If you notice dead zones on the screen or uneven lighting, the plume may not be pressed tightly enough or damaged, in which case the disassembly procedure will have to be repeated.
💡
Cleaning the frame of the old glue is 90 percent successful, and any irregularities will cause gaps and loss of water protection.