How to change the keyboard on Xiaomi Poco X3 Pro: detailed instructions with photo

Xiaomi Poco X3 Pro is a popular smartphone with great value for money, but even it can have problems with the keyboard over time. Most often users experience sticking buttons, lack of response or physical damage after falls. X3 Pro stopped responding correctly to the presses or the keys work "once again", do not rush to carry it to the service center - you can replace the keyboard yourself.

In this article, we will go through the entire process, from choosing a new keyboard to final assembly of the device, what tools you will need, how to avoid typical disassembly errors, and what to do if the keyboard is not working correctly after replacing, and this guide is suitable even for beginners, but requires accuracy and patience - one wrong step can damage the plumes or contacts.

Before you start, evaluate your strength: if you've never taken down a smartphone, practice on an old device or watch video disassembly. X3 The Pro has its own features, like the flimsy slats in the case and the static-sensitive screen, but with the right approach, it's only going to take an hour to replace the keyboard.

1. Signs of a keyboard failure on Poco X3 Pro

Before you change the keyboard, make sure it's the problem, and sometimes other problems can cause similar symptoms, such as a plume or software failure, and here are the main signs that the keyboard needs to be replaced:

• 🔠 Sticking buttons – the keys are pressed with force or “stuck” in the pressed position.
• ❌ Lack of response – some buttons do not respond to clicks or trigger repeatedly.
• 💦 Traces of liquid – if the smartphone fell into the water or spilled drinks on it, the contacts could oxidize.
• 🔄 Spontaneous taps – the phone opens apps or enters characters.
• 🔧 Physical damage – cracks, chips or broken-off elements on keys.

If the problem only manifests itself in certain applications (for example, in messengers or games), first check their settings - it may be the software. → System system → Language and input → Virtual keyboard. If that doesn't work, start replacing it.

⚠️ Warning: If the keyboard stopped working after the smartphone fell, first check the integrity of the screen and touchscreen.

2. Which keyboard to choose for replacement: original vs analog

There are two types of Poco keyboards on the market. X3 Pro: original (OEM) Original parts are more expensive, but they guarantee 100% compatibility and long lifespan. Analogs are cheaper, but they can have worse material quality or inaccurate fitting.

When choosing, pay attention to:

• 📦 Set – the set should be fasteners and double-sided tape (if it is needed for your model).
• 🔍 The article - for Poco X3 Pro suits keyboard with markers MBN2021 POCO X3 Pro Keyboard Flex.
• 🌍 Manufacturer – proven brands: Huaqin, Wingtech, Xiaomi Original Parts.

Critical: Keyboard for Poco X3 Pro is not compatible with Poco models X3 NFC POCO X3 GT — They have different plume connectors! Check with the seller that the part is suitable for your modification (the code of the model can be found on the box or in the phone settings).

3. Tools and preparations for replacement

To replace the keyboard with Poco X3 Pro you'll need:

• ⚒️ Screwdriver kit: cross-haired (PH00), flat (1.5 mm), five-pointed (for screws under the back cover).
• 🔧 Plastic blades or mediators - for careful tweaking of the body.
• 🧲 Magnetic mat or container – so as not to lose screws.
• 🔥 Hair dryer or thermal air station - for softening the glue (if the cover is glued).
• 🧴 Isopropyl alcohol (90%+) — clean-up.
• 📱 Screen suction cup – will help to lift the display module.

Also prepare the workplace:

• 🪑 Work at a table with good lighting.
• ⚡ Use an antistatic bracelet or touch a grounded object periodically.
• 📸 Take a picture of each step of the disassembly – it will help with the assembly.

⚠️ Warning: If you've never disassembled a smartphone, practice on an unnecessary device. X3 Pro fragile battery and camera plumes – they are easy to damage if handled carelessly.

4. Step-by-step instructions for replacing the keyboard

Now, to the process itself, follow the instructions strictly by step, without missing the steps.

Step 1: Turning off and disassembling the body

1. Turn off the smartphone and remove SIM-card and memory card (if installed).

2. Heat the back cover with a hair dryer (temperature) ~60°C) during 2-3 minutes to soften the glue.

3. Gently apply the lid with a plastic spatula starting at the lower corner (where the charging connector is located). Use the suction cup for convenience.

4.Put the lid aside - below it you will see the battery and motherboard.

Step 2: Shutting off the battery

1. Unscrew 5 screws that attach the metal plate over the battery (use a five-point screwdriver).

2. Gently disconnect the battery plume with a flat screwdriver. Don't pull the wires!

3. Wait. 2-3 minutes - this will discharge the residual charge and protect against short circuit.

Step 3: Remove the old keyboard

1. Unscrew 3 screws that fix the keyboard module (they are located next to the plume connector).

2. Raise the keyboard by the top edge and unplug the plume from the motherboard. The plume is latched, and you lift it gently.

3. check if there are any additional mounts or double-sided tape under the keyboard.

Step 4: Install a new keyboard

1. Place the new keyboard in place, combining the holes under the screws.

2. Connect the plume to the connector on the motherboard and fix the latch.

3. Twirl the screws (do not pull!).

Step 5: Assembly and testing

1. Connect the battery and secure its plate.

2. Install the back cover, having previously cleaned it of old glue with alcohol.

3. Turn on your phone and check the keyboard in the Hardware Test app (code to call: ##4636##).

If any buttons do not work after assembly, check:

• 🔌 Correct connection of the plume (it may not be fully inserted).
• 🔧 Are all the slacks (but not all the slacks!).
• 🧹 Cleanliness of contacts (if necessary, wipe them with alcohol).

5. Common Mistakes and How to Avoid Them

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

Another common problem is that the keyboard doesn't fit completely after installation, and this happens if you:

• 🔩 The screws are twisted unevenly (one side is raised).
• 🧩 Under the keyboard were foreign objects (dust, scotch clippings).
• 🔄 The plume is twisted or not fully inserted into the connector.

If the keyboard is walking or bending when pressed, take the phone apart and check all the mounts. Sometimes additional fixation with double-sided tape helps (but don't overdo it - it can interfere with the buttons).

💡

Before you finish building, turn on the phone with the keyboard that's connected, but not yet fixed. Press all the buttons in turn, so you make sure everything works, so you don't have to disassemble the device again.

6. Software setting after keyboard replacement

After mechanically replacing the keyboard, it may need to be programmatically configured, which is especially true if:

• 🔤 Buttons react with a delay.
• 🔊 The volume of the keys changed (for example, they became too quiet).
• 🌐 The layout was lost in English or another language.

Here's what we need to do:

1. Keyboard calibration

Go to Settings. → System system → Language and input → Virtual keyboard → Gboard (or your keyboard) → Settings → Calibration. Follow the instructions on the screen — this will help the smartphone to “get used” to the new keyboard.

2. Resetting the input settings

If the keyboard behaves strangely (for example, spontaneously enters characters), reset its settings:

1. Open Settings → Applications → All applications.
2. Find your keyboard (like Gboard or SwiftKey).
3. Press Warehouse. → Clear the data.

After that, you will have to reconfigure the layout and dictionary, but the keyboard will work correctly.

Update of the Software

Sometimes keyboard glitch is associated with outdated firmware. Check for updates in Settings → The phone. → Update system if a new version is available MIUI — set it up.

⚠️ Attention: If after the keyboard has been replaced, the phone starts spontaneously restarting or shutting down, the problem may be damage to the battery plume.

7. Alternative solutions: when replacement is not needed

It's not always a problem with the keyboard that needs to be replaced, and in some cases, you can do it with simpler and cheaper methods.

• 🧹 Cleaning from dust and dirt – if the buttons stick, try blowing the keyboard with compressed air or gently cleaning it with a cotton swab dipped in alcohol.
• 💧 Removing Oxidation – If a liquid hits the keyboard, wipe the contacts with alcohol and let the phone dry for 24 hours in rice or silica gel.
• 🔄 Resetting – sometimes resetting to factory settings helps (but don’t forget about backup!).
• 📱 Using an external keyboard – if the problem is only with the virtual keyboard, connect the Bluetooth keyboard.

If you're not sure what caused the malfunction, try these methods before replacing. For example, sticking buttons due to dust is 30% of the time and is eliminated by simple cleaning. And oxidation of contacts after moisture is removed without disassembling the phone - just dry it and use special sprays (for example, Kontakt 60).

However, if the keyboard is physically damaged (cracks, broken-off elements) or does not respond at all, alternative methods will not help - replacement will be required.

💡

Always try software and mechanical recovery methods before replacing your keyboard, and 40 percent of the time, the problem is solved without disassembling the phone.

8.Where to buy a keyboard and how much it costs

Buy a keyboard for Xiaomi Poco X3 Pro can be found in several places:

When buying on AliExpress, pay attention to:

• 🌟 The rating of the seller (must be not lower than 95%).
• 📦 Photo reviews – so you make sure the seller sends the original item.
• 📅 Delivery time – some sellers offer expedited delivery for an additional fee.

If you don’t want to wait for a package from China, look for keyboards at local service centers or on Avito – they often sell used parts from disassembled phones (but check their condition!).

The average cost of replacing a keyboard in the service is 1,500–2,500 ₽ (Self-replacement costs 600-1,800. ₽ (only a spare part, but it takes time and accuracy.

FAQ: Frequent questions about replacing the keyboard with Poco X3 Pro