Many owners of Xiaomi Mijia Glasses Camera, often referred to in search terms as the Xiaomi G1, face natural wear and tear of the batteries. Over time, the device’s autonomy declines, and the only way out is to physically replace the cell. This process requires high concentration and accuracy, since the design of the gadget does not imply easy access to the insides. However, with the appropriate tools and knowledge, it is possible to perform the procedure at home.
Before you start disassembling, you need to understand that the tightness of the case will be broken, which can affect the water protection. You will need not only a new battery, but also a special set of tools for working with microelectronics. Ignoring precautions can damage fragile plumes or display, so carefully study the theoretical part before starting practical actions.
In this article, we will discuss in detail each step of dismantling the old and installing the new power source. We will look at the necessary tools, safety practices when working with lithium polymer batteries and the nuances of building the device. The nominal capacity of the original battery is 1020 mAh, and the use of analogues with other characteristics is undesirable.
Tools and workplace preparation required
A good battery replacement is not possible without a well-organized workspace, and you'll need a table with good lighting, preferably without a fluffy coating, so that the small screws don't get lost. The main tool is a set of precision screwdrivers that includes PH00 and PH000 cross bits, because these are the screws that hold the body of the glasses.
To work with adhesive joints and plastic latches will require a plastic shoulder blade or mediator. Metal tools are not recommended, as there is a high risk of damage to the internal components or accidentally close contacts on the board. Also prepare a suction cup for careful removal of the back cover and tweezers with thin curved ends.
- 🔧 Precision screwdriver set (PH00, PH000)
- 🛠️ Plastic spatula (poodger) and mediator
- 💨 Hair dryer or heater plate for softening glue
- 📎 Tweezers with antistatic coating
- 🧲 Magnetic screw-sorting mat
Pay special attention to the organization of space for screws. In the design of the Xiaomi G1, several types of fasteners of different lengths are used. If you confuse them during assembly, you can damage the thread or penetrate the body through. It is recommended to use a magnetic mat with markings or cells, signing the dismantling steps.
☑️ Preparation for repairs
Safety technique when working with batteries
Lithium polymer batteries used in wearable electronics are sensitive to mechanical damage and overheating, and if handled improperly, they can ignite or swell. So the first step should always be to visually inspect the battery, and if an old battery is bloated, you should work with it with extreme caution, avoiding punctures.
⚠️ Warning: Never try to remove the battery if it is too swelled and stuck in the case. Pressure can cause ignition when exposed to physical pressure.
Before any work begins, the device must be completely turned off. To do this, press the power button for a few seconds before the indication disappears. Energizing can short circuit the power controller board, which will disable the electronics. If the glasses were connected to the charge, disconnect the cable and let the device cool down.
It's also important to control the heating temperature when you open the case, and the glue that holds the lid is softened at a temperature around the top. 60-70 Exceeding this threshold can damage the display or optical modules inside the glasses. Use a hair dryer at minimum power, evenly warming the perimeter of the device.
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Before starting work, put a class D fire extinguisher or a sand tank on the table in case the battery ignites, although the probability of this is extremely small when working carefully.
The process of disassembling the body Xiaomi G1
Disassembly begins with finding and unscrewing the visible screws. In the Xiaomi Mijia Glasses Camera, the fasteners can be hidden under decorative plugs or rubber linings. Carefully inspect the ends of the arcs and the bottom of the frame. After removing all the screws, you can start heating the adhesive layer.
Warm the perimeter of the back cover with a hair dryer evenly for 1-2 minutes. Don't keep the hot air flowing at one point for too long. Once the glue has softened, insert the plastic blade into the junction between the frame and the cover. Move the tool along the perimeter, gradually releasing the latches.
- 🌡️ Evenly warm the body around the perimeter
- 🔪 Carefully tuck the lid with a spatula at the bottom
- 🔄 Driving the tool along the seam without putting excessive effort
- 👁️ Watch the plumes so as not to touch them with the tool
Once the back panel is removed, you will be able to access the interior layout, and it is important not to make any sudden movements, as some modules can be connected with thin plumes to the main board. Before you completely remove the cover or other elements, make sure that nothing interferes with the free access to the battery compartment.
Hidden screws.
Dismantling the old battery and disconnecting the plume
The battery in the Xiaomi G1 is usually fixed to double-sided tape and connected to the motherboard via a connector. The first step is to turn off the connector. Use a plastic blade or nail to gently lift the connector up. Pulling the wires is strictly forbidden, this will lead to their breakage.
If the battery is glued, apply a small amount of isopropyl alcohol or a special adhesive solvent (such as B-7000) under the edge of the battery. Give the liquid to penetrate the glue layer for a few minutes, which will make it much easier to remove the battery without deforming the body.
To extract, use a plastic card or a spatula, gently putting the battery on different sides. Try not to squeeze or puncture the battery case. If it sits very tight, you can slightly warm the area under it, but the temperature should not exceed 45 degrees, so as not to damage the neighboring components.
| Parameter | Original | Analogue | Units |
|---|---|---|---|
| Nominal voltage | 3.85 | 3.7 - 3.85 | Volt (V) |
| Capacity | 1020 | 900 - 1100 | mic |
| Type of connector | ZH1.5 2Pin | Compatible | - |
| Thickness | 3.5 | ±0.2 | mm |
Once successfully removed, inspect the compartment for glue residues. Clean the surface with a soft cloth moistened with alcohol. Make sure the contacts on the board are clean and not oxidized. If the board shows signs of corrosion or electrolyte bloating, the device requires professional ultrasound cleaning.
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The main rule of dismantling is to first disconnect the plume from the board, and only then begin physical manipulations with the extraction of the battery from the case.
Installation of a new battery and assembly of the device
Before installing a new battery, check its voltage with a multimeter. It should be in the range of 3.7-3.9 Volts. If the voltage is much lower, the battery is recommended to be pre-activated with a low-current charger, although modern modern batteries are not. BMS-The fees usually do this automatically.
Apply a new layer of double-sided tape to the compartment or the battery itself. Press the battery tightly, making sure it doesn't hang inside. Connect the connector to the board before a characteristic click. Make sure the plume is flat and doesn't get squeezed.
The assembly is done in reverse order. First, set the back cover, check the density of the fitting. Then twist all the screws, following the order (cross-cross) for even distribution of pressure. Don't drag the screws, the plastic of the case is very fragile.
- 🔋 Check the voltage of the new battery before installation
- 🧹 Clean the dust and old glue compartment
- 🔌 Make sure to fit the connector tightly.
- 🔩 Write the screws evenly, without undue effort.
After assembly, turn on the device. If the screen caught fire and the charging indication appeared, the procedure was successful. It is recommended to conduct a full charge and discharge cycle to calibrate the power controller. During the first hours of use, monitor the heating temperature in the battery area.
Possible problems and solutions
Even if you follow all the instructions, there can be unexpected situations, and one of the common problems is that the device doesn't turn on after assembly, in which case you have to take the glasses apart again and check the connection of the plume, and sometimes the contact doesn't fully fit into the connector the first time.
If the glasses are on but show the wrong percentage of charge or are discharged quickly, there may be a problem with the software or calibration.Try resetting to factory settings via the Settings → System → Reset menu.Relatively, flashing the device is required.
⚠️ Warning: If the battery starts to warm up in idle mode after the battery is replaced, turn it off immediately.This may indicate a short circuit or a malfunction of the new battery.
Another problem may be leakproofness, because the factory adhesive has been removed, the water protection of the device has decreased, and it is not recommended to use glasses in high humidity or in the rain without additional sealing of the seams with special glue.