Replacement of glass on Xiaomi smartphone: detailed instructions from disassembly to assembly

Introduction: when you need to replace glass and can you do without it

Broken glass on Xiaomi is one of the most common problems faced by smartphone owners, where even a small crack can eventually turn into a web of faults, and shards can hurt your fingers or interfere with sensory control, but before you start repairing, it is worth assessing the extent of the damage.

If the screen is only superficial scratches or small chips around the edges, and the sensor works without complaints, you can do with a protective film or glass. However, when deep cracks, non-responding touch zones or a “web” appears on the matrix under the glass (which often happens in models with a high-resolution glass). OLED-It's important to understand that 80 percent of the time, when you hit a big one, not only the glass, but the touchscreen, and sometimes the sensor layer, is affected.

Replacing glass on your own will cost less than a service center, but it will require care and special tools. In this article, we will analyze the entire process from the selection of spare parts to the final assembly, and also tell you what mistakes beginners most often make.

What tools will be needed to replace glass

Without the right set of tools, trying to replace the glass can damage the plumes, the matrix or the case.

• 🔧 Plastic mediators or shoulder blades (2-3 pc.) - for careful double-doping of glass and separation of the adhesive layer.
• 🔥 Hair dryer or thermoair station – to soften the glue (optimum temperature: 60–80)°C).
• 🧲 Suction cups (better with a metal ring) – help lift the glass after heating.
• 📏 Thin Scotch or paint tape - for fixing plumes and protecting the body from scratches.
• 🧴 Special glue (e.g., glue, B-7000 or LOCA) — glass-stick.
• 🔍 Loop or microscope (optional) – to check the integrity of plumes.

For models with curved screens (for example, Xiaomi Mi 11 Ultra or POCO F4 GT) need to UV-glue-lamp LOCA. Also useful plastic card for uniform pressing of glass when gluing.

⚠️ Warning: Do not use metal tools (screwdrivers, knives) to pluck glass - they scratch the body and can damage the plumes. Exception: special stainless steel blades with rounded edges.

How to choose glass for replacement: original vs. analogues

The quality of glass is not only the quality of the repair, but also the durability of the repair, and there are three types of spare parts on the market:

For models with an ultrasonic under-screen fingerprint (for example, Xiaomi 12T Pro or Redmi K50), be sure to buy glass with this feature - otherwise the scanner will stop working. Check with the seller whether the analogue is compatible with your firmware (some custom ROMs like LineageOS may have problems calibrating the sensor).

Where to buy:

• 🛒 AliExpress is a cheap analogue, but a long wait (3-6 weeks).
• 🏬 Local service centers are original parts, but expensive.
• 🌍 Specialty stores (for example, Fixez, MobileDefender) - the optimal balance of price and quality.

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Before buying, check the glass articula for your model. For example, for the Redmi Note 10 Pro, the original glass is labeled XM-DG-N10P-01. The article is usually indicated on the old glass under the protective film.

Step-by-step: how to remove broken glass

This is the most critical step, and a mistake here can cause damage to the matrix or the plumes.

1. Turn off your smartphone and remove it. SIM-card.
2. Heat the glass with a hair dryer around the perimeter for 2-3 minutes, keeping it at a distance of 5-7 cm Do not overheat - temperatures above 90 ° C can damage the matrix.
3. Hold the suction cups at the top of the screen (where the speaker and front camera are usually located) and gently pull up. If the glass doesn't lend itself, repeat the heating.
4. Put the glass in the mediator, starting at the corners, move slowly so that the plumes don't break.
5. Disconnect the touchscreen plumes (if they are glued to the glass) and they are usually attached to connectors or double-sided tape.

In frameless Xiaomi models (such as the Mi 11 or 12 Lite), glass is often glued to the middle frame, in which case you have to carefully separate it around the perimeter, heating it with sections. If the glass is cracked too hard and does not lend itself to suction cups, you can use a kapron thread, squeezing it under the glass and neatly "saw" with a glue layer.

⚠️ Warning: If you see that the matrix cracked or a wave started, further glass replacement is meaningless.

Installation of new glass: glue, alignment and polymerization

Before installing a new glass, you need to thoroughly clean the surface of the matrix of the residues of old glue. Use isopropyl alcohol (90%+) and a lilaless napkin. Don't rub too hard - the matrix is fragile!

Then proceed with the steps:

1. Apply glue: For LOCA: drop a few drops around the edges and spread with a plastic card. For B-7000: apply a thin layer around the perimeter, receding 1-2 mm from the edge.

Line up the glass.

Lock the glass.

• For LOCA: Put the smartphone under UV-lamp for 5-10 minutes.
• For the B-7000: Press the glass with a load (e.g. a book) for 12 to 24 hours.
• Connect the touchscreen plumes and check the sensor's performance.

The models with 3D-The process is more complicated with glass (for example, Xiaomi Civi 2) – the glass has curved edges, and it will require a vacuum press or special rods to stick it to, without them, there is a high risk of detachment at the edges.

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to re-repairs.

• 🔥 Overheating of the matrix - leads to yellowness or "burned out" pixels. Optimal temperature of the hair dryer: 60-80°C.
• 🧲 Using metal tools - scratches the body and damages the plumes. Use only plastic or special blades.
• 💧 Excess glue -- leaks out under the body, gets onto the speaker or microphone.
• 📱 Incorrect alignment of the glass causes the sensory zones to shift.
• ⚡ Forget to turn off the battery - if the plumes accidentally close, the power controller can burn down.

Pay special attention to touchscreen plumes. Xiaomi often attaches them to fragile connectors like FPC. If the plume breaks, it can be temporarily restored with conductive glue (for example, CircuitWriter), but this is a short-lived solution - it is better to replace the plume entirely.

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If the sensor is not working properly after the glass is replaced (for example, spontaneous pressing or dead zones), the cause may be poor contact of the plumes or poor-quality glue. Try reconnecting the plumes or using another adhesive compound.

How much does it cost to replace glass in the service vs. independently?

The cost of repairs depends on the model of the smartphone, the type of glass and the region, on average, the costs are distributed as follows:

At Xiaomi service centers, it costs more to replace the glass, but it gives you a guarantee (usually 3-6 months), self-repair is cheaper, but the risks are higher — especially if you are starting this. AMOLED-The savings on screens (such as Xiaomi 13) are particularly noticeable, as original parts in services are very expensive.

Should you save money? If you have a budget model (for example, Redmi 10A), a self-replacement is justified. For flagships (for example, Xiaomi 14) it is better to contact the service - a mistake when disassembling can cost half the cost of the phone.

FAQ: Answers to Frequent Questions