Xiaomi 1S β It's an iconic smartphone that's still used by many users today because of its reliability and upgrade capability, but over time, even the best technology needs repair, whether it's replacing the battery, cleaning the dust or recovering from a fall. Disassembly of this device has its own nuances, which are important to consider so as not to damage fragile components.
In this article, you will find a step-by-step guide with photos of key steps, a list of tools you need, and a list of common mistakes that beginners make: we will learn how to properly remove the back cover, disconnect the plumes and avoid damaging flexible cables. We will pay special attention to safety: working with lithium-ion batteries requires caution, and improper handling of them can lead to fire.
If you've never taken a smartphone apart before, don't worry, our guide is for users of all levels, but the main thing is to follow the instructions carefully and take your time. And if you doubt your abilities, you better contact the service center - some operations (for example, soldering chips) require professional equipment.
Preparation for disassembly: tools and security measures
Before we start to disassemble Xiaomi 1S, You need to get the workspace and the tools ready, and not only will it speed up the process, it will also minimize the risk of damage to the device:
- π§ Set of screwdrivers (cross-haul) PH00, 1.5mm flat, five-pointed star for some screws)
- π± Plastic mediators or blades to separate the body (metal tools can scratch the plastic)
- π Tweezers with thin ends for working with small details
- 𧲠Magnetic mat or screw container (so as not to lose them)
- π₯ Dryer or thermo-air station (if you want to unstick the battery)
- 𧴠Isopropyl alcohol (90%+) clean-up
- π¦ Antistatic bag or gloves (to protect against static electricity)
Pay special attention to safety:
- β‘ Turn off your smartphone and completely drain the battery (up to 0%) before disassembling β this will reduce the risk of short circuit.
- π« Do not work on carpets or synthetic clothing β they store static electricity.
- π Use a magnifying glass or magnifying glass to work with small connectors.
β οΈ Note: If Xiaomi battery 1S If you swell, don't try to puncture or bend it, it can cause a fire or explosion.
Step 1: Remove the back cover and battery
The first stage is to dismantle the back cover. 1S It's mounted on latches and two screws hidden under the stickers:
- Place the smartphone down on a soft surface (such as a napkin).
- Carefully put a plastic mediator under the lower part of the cover (from the charging connector).
- Swipe the mediator around the perimeter, gradually snapping the lid. Don't put too much effort into it, the plastic can crack!
- When you take the lid off, you'll see the battery mounted on double-sided tape, and underneath it, there are screws holding the motherboard.
To remove the battery:
- π₯ Heat the back of the smartphone with a hairdryer (temperature) ~60Β°C) during 1-2 minutes, it'll soften the glue.
- πͺ Put a plastic blade on the battery and pull it up gently. If it doesn't give in, warm it up again.
- β οΈ Donβt use metal tools β they can puncture the battery!
Smartphone is off and discharged|Tools prepared|Workplace cleared of garbage|No rings/bracelets on your hands (risk of short circuit)|-->
Once the battery is removed, check it for swelling or corrosion, and if you notice white plaque on the contacts, it's a sign of oxidation, and clean them with a cotton swab dipped in isopropyl alcohol.
Step 2: Unconnecting the plumes and dismantling the motherboard
Now that the battery is off, you can start detaching the plumes. 1S three:
- The display plume (the widest, located at the top).
- Camera plume (thin, right of the display).
- The power button/volume loop (small, left).
For disconnection:
- Carefully lift the black connector locks with a plastic blade (they open up like covers).
- Remove the plumes with tweezers, pulling over the edge.
- Lock the plumes on the case with tape so that they do not interfere with further disassembly.
Next, you need to unscrew the screws that hold the motherboard. 1S 8 grand:
- 4 crosses (PH00) corner-wise.
- 2 five-pointed stars next to the charging connector.
- 2 flat under the camera plume.
Location pattern of screws
| Type of screw | Number of | Location. | Recommended screwdriver |
|---|---|---|---|
| Cross (PH00) | 4 | By the toll corners | Screwdriver. PH00 (magnetic) |
| Five-pointed star | 2 | Next to the charging connector | Torx Security Screwdriver T5 |
| Flat (1.5 mm) | 2 | Under the camera plume | Flat screwdriver 1.5 mm |
Once you unscrew the screws, gently lift the motherboard over the edges. It can stick to the heat conductive paste on the processor -- don't pull it, but sway slowly from side to side.
β οΈ Attention: On the Xiaomi board 1S petty SMD-components (resistors, capacitors) If you accidentally hit them with tweezers, check the board for parts that have fallen off before assembly.
Step 3: Dismantling the display and touch module
Xiaomi display 1S three-layered:
1. Touch screen module (touch screen).
2. LCD matrix (display).
3. Backlighting (LED-panel).
In most cases, these layers are glued together, and it is not recommended to separate them without special equipment. However, if you need to replace only a sensor or a matrix, act like this:
- Heat the front of the smartphone with a hair dryer (temperature) ~70Β°C) during 3-5 It'll soften the glue that holds the display.
- Place a suction cup between the body and the display (you can use a glass suction cup).
- Carefully pull the sucker up, while putting the display on with a plastic spatula.
- As soon as there is a gap, swipe around the perimeter, separating the display from the body.
Once you remove the display, you'll see a plume connecting it to the motherboard, and disconnect it just like the other plumes (lifting the lock and pulling the tape out with tweezers).
π‘
If the display is cracked, put a tape on it before heating it so that the fragments do not fall apart. Use safety glasses!
Step 4: Replacing the battery: selecting and installing a new battery
Battery is one of the most frequently replaced parts in Xiaomi 1S. And over time, it's going down, and it's going to run out of capacity, and when you're looking for a new battery, you're going to look at this:
- π Capacity: the original battery has a capacity of 1900 mAh. You can install an analogue with a capacity of up to 2200 mAh, but not more - this can lead to overheating.
- π Type of connector: must match the original (3 contacts: "+", "-", thermistor).
- π Dimensions: thickness should not exceed 3.5 mm, otherwise the cover will not be snapped.
Popular analogues of the original battery:
| Manufacturer | Model | Capacity | Compatibility | Notes |
|---|---|---|---|---|
| ZOP Power | BX-MI1S | 2000 mAh | Complete. | There are adhesive stripes in the kit. |
| Baseus | MI-1S-PLUS | 2200 mAh | Partial (pruning required) | 0.3 mm thicker than the original |
| OEM (original) | MB38 | 1900 mh | Complete. | Hard to find on sale |
To install a new battery:
- Clean the seat from the remnants of old glue with alcohol.
- Stick new two-sided adhesive strips (come complete with the battery).
- Connect the battery connector to the motherboard.
- Put the battery in place and press it on. 10-15 seconds.
π‘
After replacing the battery, be sure to calibrate the charge controller: completely discharge the smartphone, then charge to 100% without interruptions.
Step 5: Cleaning and Diagnosing Internal Components
Disassemble Xiaomi 1S, It's worth doing a preventive cleaning and diagnostics, and often the problems with the smartphone are not the parts that break down, but the parts that get dirty:
- π§Ή Dust in the connectors: clean the charging socket, headphones and SIM-card with a cotton swab dipped in alcohol.
- π Contact oxidation: if there is a green/white coating on the plume or battery connectors, clean it with a stripe or alcohol.
- π‘οΈ Thermopaste on the processor: if it is dry, replace it with a new one (for example, Arctic). MX-4).
- πΆ Antenna contacts: check the integrity of the small springs under the back cover β they are responsible for communication.
For the diagnosis of the motherboard:
- Check the capacitors for bloating (they should be flat).
- Check the tracks under the magnifying glass - are there any microcracks?
- If the smartphone does not turn on, check the fuses (small black chips marked with the "0Ξ©").
If you find any damaged components, they can be replaced at the service center. SMD-elements require experience and special equipment (sweeping station, flux, solder).
Step 6: Build a smartphone and check the health
Assembling Xiaomi 1S It is done in reverse order, but there are several important nuances:
- Make sure all plumes are tightly connected - they should click when fixing.
- Check if foreign objects (screws, trimmings of adhesive tape) got inside the case.
- Twisting the screws cross-cross so that the board sits evenly.
- After assembly, turn on the smartphone and check: π± Does the sensor work. π Is there sound in the speaker and microphone. πΆ Is it network and Wi-Fi. π Is the battery charging.
If something doesnβt work after the assembly:
- π Check the connection of the plumes.
- π§ Make sure all screws are twisted (an unpatched screw can close the contacts).
- π If the problem remains, it is possible that the motherboard or plume is damaged.
β οΈ Warning: If the smartphone doesn't turn on after the battery is replaced, check the polarity of the connection "+" and "-" can disable the power controller.
Common Mistakes and How to Avoid Them
Even experienced masters sometimes make mistakes when disassembling Xiaomi 1S. Here are the most common ones and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Using metal tools to remove the cover | Scratches on the body, damage to latches | Use only plastic mediators |
| Dryer overheating | Bloating or ignition | Heat no more than 60Β°C. Do not direct the airflow to one point. |
| Strong pressing on the display when removed | Matrix cracks or plume detachment | Use the suction cup and heat the display before removing |
| Loss or entanglement of screws | A loose fit of board, short circuit | Put the screws in a magnetic container with cells |
| Blind-wire connection | Contact damage, sensor/camera inoperative | Check the position of the plume before fixing |
Another common problem is that the flexible plumes are damaged, and they're very fragile, and they're easy to break when you pull in the middle. Always take the plumes just by the edges!
If you accidentally rip off a plume, don't panic. It can be repaired with conductive glue (like CircuitWriter) or soldering, but it will require a microscope and experience with small parts.