How to change the glass on the Xiaomi smartphone with your own hands: a detailed guide with nuances

Why Xiaomi Glass Is Better to Do It Yourself, and When You Shouldn’t

Broken glass on Xiaomi is one of the most common breakdowns faced by smartphone owners: service centers charge from 3,000 to 10,000 rubles (depending on the model), and the wait for repairs can take a week. Meanwhile, self-replacement of glass will cost 3-5 times less if you buy an original or high-quality analogue and prepare properly.

But not all breakages are the same. If you just crack the outside glass, and the touchscreen and the display are working, it's easier. OLED-screen (on models such as Xiaomi 13 Pro or Redmi Note 12 Pro)+), In this article, we will discuss the universal method of glass replacement for most Xiaomi models (2018-2026), including nuances with glue, detachment of plumes and calibration after repair.

Before you start, honestly evaluate your skills:

• 🔧 You have experience disassembling equipment (at least it was a watch, laptop, remote control)?
• 🕵️‍♂️ You are willing to spend 2-4 hours on a neat job?
• 💸 You bought a replacement kit (glass) + glue + tools, not just glass?

If all the questions are yes, we will start. If not, you should contact the service (especially for flagships like Xiaomi 14 Ultra).

What tools and materials will be needed

Without the right tools, changing the glass will be a nightmare: you will either damage the plumes, leave dust under the glass, or you will not be able to glue the new panel uniformly.

• 🔨 Plastic mediators / blades (2-3 pieces) - for careful slashing of glass.
• 🔥 Dryer or thermo-air station (at least 800 W) – to soften the glue.
• 🧲 Suction cups (2 pcs) - for removing glass after heating.
• 📏 New glass (preferably with a glue layer) LOC or OCA).
• 🧴 Clay. B-7000 or similar, if the glass is without a glue layer.
• 🧹 A hairless napkin + alcohol%+) — screen-cleaner.
• 🔍 Loop or microscope – to check the quality of the sticker.

Glass is better to buy in trusted stores (for example, on AliExpress from sellers with a rating of 98%+ or in Russian stores such as Beru or Svyaznoy).

• 📱 Exact model matching (e.g., glass for Redmi Note 10 Pro will not fit for Note) 10S).
• 🔘 Type of glue: OCA (optically transparent) preferably LOC (liquid-glue).
• 🛡️ Protective coating: some glass already has an oleophobic coating (check with the seller).

⚠️ Warning: Do not use metal tools (screwdrivers, knives) to smear glass, they scratch the frame and can damage the plumes of the touchscreen. Also avoid cheap glass without adhesive layer: they are harder to install smoothly, and they peel off faster.

Preparation of the smartphone: what to do before disassembly

Before you start replacing the glass, the smartphone needs to be properly prepared, which will save you from data loss, short circuit and other troubles.

1. Turn off the phone and remove it. SIM-map + MicroSD (if any) The battery doesn't have to be turned off, but if you're a beginner, it's best to drain the phone to 20 to 30 percent to avoid catching fire when you're heated.
2. Remove the cover and protective film (if any) and the film can melt when heated and interfere with work.
3. Back up your data via Mi Cloud or Google Account. Even if you're careful, there's always a risk of damaging the motherboard.
4. Check the touchscreen before you replace it: run the sensor test through the engineering menu (#6484### for most Xiaomi) to prove that the problems occurred after your actions, not before them.

🔹 Tip: If you have a model with a glued battery (for example, Xiaomi) 12T or POCO F5), Prepare a plastic card to gently detach the battery plume. Don't pull the plumes by force, they break easily!

Step-by-step: how to remove old glass

The most important step is to carefully separate the broken glass from the display, and the main thing here is not to rush and overheat the smartphone, otherwise you will damage it. OLED-plume.

Step 1: Heating the glass

Turn the dryer on at minimum power (or set the thermal air station at 60-80 ° C. Heat the glass around with movements, holding the hair dryer at a distance of 5-7 cm. Pay special attention to the edges - there the glue is held stronger.

⏱️ Heat time: 3-5 minutes. If the glass does not respond, warm up for another 1-2 minutes, but do not overheat (the body should not burn the hands!).

Step 2: Breaking glass

After heating, apply the suction cup to the bottom of the screen (where the charging connector is usually located). Carefully pull up, the glass should start to move away. If it doesn't work, put it on the side with a plastic mediator.

⚠️ Note: On curved screen models (such as the Xiaomi 11 Ultra or Mix 4), the glass is glued tighter to the edges. Don't try to tear it off sharply - warm it up again and use the second suction cup to evenly remove it.

Step 3: Removal of glue residues

Once the glass is removed, the old glue will remain on the display.

1. Moisten the lilaless napkin in isopropyl alcohol (90%+).
2. Gently wipe the display, avoiding heavy pressure.
3. For hard-to-reach places, use a wooden stick (for example, from a cotton swab).

❌ Don't use acetone or solvents! they can damage the oleophobic coating of the display.

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If the glue is not well removed, warm up the display again with a hair dryer for 1-2 minutes. This will soften the remnants of the adhesive.

Installation of new glass: glue, alignment and pressure

Now the most important thing is to stick new glass, and it's important to avoid bubbles, dust under the glass, and misalignment. OCA-with the stain and without it.

Option 1: Pre-applied glass (OCA)

1. Remove the protective film from the adhesive layer (usually it is blue or red).
2. Line the glass around the edges of the display. Start at the bottom (where the charging connector is) and gradually lower the glass from top to bottom.
3. Press the glass with your hands or a press (if any) and keep the pressure for 1-2 minutes.
4. Check for bubbles under bright light. If you have any, gently tuck the glass in and glue it back.

Option 2: Glass without glue (you need to apply B-7000 or analogues)

If your glass does not have a glue layer, act as follows:

1. Put a thin layer of B-7000 glue on the display in zigzag movements. Don't overdo it, excess glue will lead to divorces.
2. Distribute the glue with a plastic card (like a credit card) evenly over the entire surface.
3. Set the glass and press it with a heavy book for 10-15 minutes.

⚠️ Attention: Clay B-7000 dries longer than OCA. Do not turn on your phone or press the screen for 4-6 hours after you have been replaced!

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If you have small bubbles left after you paste, don't panic. Most of them will disappear after 12 to 24 hours when the glue is completely dry.

Calibration of the touch screen and check after replacement

After the glass is replaced, many people have a problem: the touchscreen doesn't work properly, it misses touches, double taps, or floating clicks, and it's because of a communication disorder between the sensor and the motherboard, and you can fix this with software calibration.

Method 1: Calibration through the engineering menu

For most Xiaomi, there is a universal code:

1. Open the Phone app.
2. Enter the combination: ##6484###.
3. Select the Touch Screen Test.
4. Follow the instructions on the screen (usually click on the crosses at the specified points).

If the code doesn’t work, try alternatives:

• #3644633## (for older models)
• ##4636## → Testing → Touch Test

Method 2: Resetting (if calibration doesn’t help)

If the touchscreen still glitch:

1. Go to Settings → About the phone → Reset settings.
2. Select Reset all settings (does not delete files, only settings).
3. After restarting, check the screen.

⚠️ Note: On some models (e.g, POCO X3 Pro) after the glass is replaced, you may need to firmware touchscreen through Fastboot. This is a complicated procedure - if you are not sure, contact the service.

Common Mistakes and How to Avoid Them

Even experienced glass makers sometimes make mistakes when replacing glass, and here are the most common ones and ways to prevent them:

• 🔥 Overheating of the display → detach OLED-Solution: warm for no longer than 5 minutes and at a distance of 5-7 cm.
• 🧹 Dust under glass → Solution: Work in a clean room, use a sticky roller to remove dust before sticking it.
• 📉 Uneven adherence → So, the solution is to use a magnetic substrate or a heavy book to keep the pressure even.
• 🔌 Damage to plumes → The touchscreen or the display stops working. Solution: Turn off the plumes carefully, putting a plastic blade on them.

🔹 Tips from the masters: If you are replacing glass on models with an ultrasonic fingerprint sensor (e.g. Xiaomi 13 or Xiaomi). POCO F4), After the repair, you may need to re-register the fingerprints. → Security → Fingerprints.

FAQ: Answers to Frequent Questions