A Poco X3 Pro white screen usually means the display backlight is on but the LCD is not receiving or showing an image, most often because of a loose or damaged display connection, a failing LCD panel or, less often, a fault on the main board. A black screen can have the same causes, plus a flat battery or a software freeze. Start with simple checks: charge it, force a restart and see whether the phone still rings or vibrates. If it does, the fault is most likely in the display or its cable, which are inexpensive parts: in our store, a Poco X3 Pro LCD screen replacement costs £15.11 and the main board to LCD flex cable £4.76 (checked 15 October 2026). The main qualification is that a board fault will not be fixed by a new screen, so diagnose carefully first. This guide explains the causes, the checks and the repair.
Poco X3 Pro display basics
The Poco X3 Pro, launched in 2021, has a 6.67-inch IPS LCD with a 120Hz refresh rate and a side-mounted fingerprint sensor in the power button. Because it uses an LCD rather than OLED, the screen relies on a backlight behind the panel. That is why a fault can show as a white screen: the backlight works, but the panel shows no image. Xiaomi's UK support pages cover official service options.
White, black and yellow screens: what each means
| Symptom | Most likely causes | First check |
|---|---|---|
| Solid white screen | Loose display connector, damaged LCD flex cable, failed LCD panel | Force restart; check whether the phone rings |
| White screen after a drop | Connector knocked loose or LCD damaged | Reseat the display connector |
| Black screen, phone rings or vibrates | Failed LCD, backlight fault, connector or flex | Shine a torch at the screen to look for a faint image |
| Black screen, no signs of life | Flat battery, software freeze, board fault | Charge for 30 minutes, then force restart |
| Yellow or warm tint | Reading or eye-care mode, colour settings, ageing or damaged panel | Check display settings first |
| Flickering or lines | Damaged LCD or loose connector | Gently press near the connector area; if it changes, suspect the connection |
How to fix a Poco X3 Pro white screen: step by step
Step 1: Force a restart
Hold the power button for around 10 to 15 seconds until the phone vibrates and restarts. A temporary software freeze can leave the display stuck on white or black.
Step 2: Charge and listen
Connect a known-good charger for at least 30 minutes. Then call the phone or press the volume buttons. If it rings, vibrates or plays sounds, the phone is running and the fault is in the display path.
Step 3: Torch test for black screens
Shine a bright torch at an angle onto a black screen. If you can faintly see icons, the LCD is working but the backlight is not, which points to a backlight or display fault.
Step 4: Rule out software
If the screen works intermittently, try booting into safe mode, which disables third-party apps; Google explains how safe mode works on Android. If the problem disappears in safe mode, an app is likely responsible. As a last resort for software faults, a factory reset can help; Google's factory reset guide explains the process, but it erases your data.
Step 5: Check the display connection
If the phone works but the screen stays white or black, the display connector or flex cable is the next suspect, especially after a drop. This requires opening the phone, removing the back cover and the bracket over the connectors, disconnecting the battery, then disconnecting and firmly reseating the display connector. If the screen works again, the connector was loose. If not, inspect the LCD flex cable for creases, tears or corrosion.
Step 6: Replace the flex cable or screen
If the flex cable is damaged, replacing it is the cheaper fix. If the cable looks fine and reseating does not help, the LCD itself has most likely failed and the screen assembly needs replacing.
Parts for the Poco X3 Pro
Prices below were read from our live store on 15 October 2026.
See all parts for this phone in our Poco X3 Pro parts collection, and parts for other models in our Poco phone parts range. If you own the closely named Poco X3 GT, note it is a different phone; see our Poco X3 GT parts.
About main board faults
Some Poco X3 Pro owners have reported phones that become stuck on the boot logo, restart repeatedly or stop powering on, with discussions attributing this to a main board fault. We have not verified the cause, and the symptoms differ from a white screen on a phone that otherwise works. If your phone shows no signs of life at all after charging, will not stay on long enough to ring, or restarts in a loop, a new screen is unlikely to help. A repair shop with board-level repair skills can diagnose whether the board can be repaired.
Poco X3 Pro screen replacement cost
DIY, the cost is the screen or flex cable plus adhesive and any tools you need. With our LCD replacement at £15.11 and the flex cable at £4.76 (checked 15 October 2026), this is one of the more affordable screen repairs. A repair shop adds labour, so ask for an all-in quote and which screen quality they fit.
Screen quality
Replacement LCDs vary in brightness, colour accuracy and refresh rate support. Choose a supplier that describes the part clearly and offers a warranty. If the 120Hz refresh rate matters to you, check the listing confirms support.
Tools you need
- Heat source to soften the back cover and screen adhesive.
- Suction handle and thin plastic opening picks.
- Small Phillips screwdriver.
- Spudger and tweezers.
- Isopropyl alcohol and lint-free swabs.
- Replacement adhesive for the back cover and screen.
Find these in our repair tools collection.
Poco X3 Pro screen replacement: overview
Follow a model-specific guide alongside these steps.
- Prepare. Back up if possible, discharge below about 25%, power off and remove the SIM tray.
- Remove the back cover. Heat the edges, lift with a suction handle and slide picks around to release the adhesive. Take care not to tear any cables attached to the back cover.
- Disconnect the battery. Remove the screws and bracket over the board connectors, then disconnect the battery first.
- Disconnect the display. Release the display connector or flex cable from the board.
- Remove the old screen. On many replacement procedures, the screen is removed from the front after heating to soften its adhesive, then the display flex is fed through the frame. Work slowly to avoid damaging the frame or other components.
- Clean the frame of old adhesive and glass fragments.
- Fit the new screen. Feed the flex cable through, connect it, reconnect the battery and test before gluing.
- Test. Check image, touch across the whole screen, brightness, the proximity sensor during calls and the front camera.
- Seal. Apply new adhesive to the screen and back cover, press evenly and clamp gently while it sets.
Getting your data back when the screen does not work
If the screen is white or black but the phone is still running, your photos and messages are usually safe on the phone. If you had Google backup turned on, much of your data may already be in your Google account, and you can check from a computer by signing in to Google Photos and Google Drive. If not, the safest route is to repair the display first and then back up, rather than attempting a factory reset, which would erase everything. Some people connect a USB-C hub with a mouse to navigate a phone with a working display but broken touch, but this does not help when the display itself shows nothing. Once the repair is done, turn on automatic backup so a future screen failure does not put your data at risk.
Is it worth repairing a Poco X3 Pro?
The Poco X3 Pro was a popular performance phone and still handles everyday apps and many games well. With a screen part costing £15.11 in our store at the time of writing, a display repair is usually far cheaper than replacing the phone, especially if the battery and charging port are still in good shape. The main reasons not to repair are a confirmed main board fault, which costs more to fix and may not be repairable, or multiple failing components at once. Check software update status for your phone too, as older models eventually stop receiving security updates, which matters if you use the phone for banking.
Protecting the new screen
A tempered glass screen guard made for the Poco X3 Pro protects the new display from scratches and minor knocks. Choose one that fits the exact size and leaves the front camera cut-out clear, and apply it in a dust-free room. A case with a raised lip adds extra protection against face-down drops.
Water resistance
The Poco X3 Pro has an IP53 rating for splash and dust resistance, according to its published specifications. Opening the phone breaks the factory seal; treat it as having reduced protection after a repair.
Safety and disposal
Always disconnect the battery before working on the display, never bend or puncture it, and replace it if it looks swollen. Dispose of old screens and parts at an electrical waste collection point; GOV.UK explains the rules on waste electrical and electronic equipment, and London Fire Brigade publishes lithium battery safety advice.
Common mistakes
- Buying a screen when the fault is the flex cable or a loose connector.
- Replacing the screen on a phone with a board fault. Check it rings or vibrates first.
- Not disconnecting the battery before unplugging the display.
- Confusing the X3 Pro with the X3 NFC or X3 GT. Parts differ.
- Gluing before testing.
Frequently asked questions
How do I fix a Poco X3 Pro white screen problem?
Force a restart, charge it and check whether it rings. If the phone works but the screen stays white, reseat the display connector, then replace the LCD flex cable or the screen if needed.
Why is my Poco X3 Pro screen black?
A flat battery, software freeze, failed LCD or backlight, loose connector or a board fault. Charge it, force a restart and do a torch test to narrow it down.
What is the white screen of death on Poco X3 Pro?
It describes a screen that turns solid white and stops responding. It is usually a display connection or LCD fault, though a board fault can sometimes cause similar symptoms.
How much is a Poco X3 Pro screen replacement?
Our Poco X3 Pro LCD screen replacement is £15.11 at the time of writing. Add adhesive and tools for DIY, or labour if you use a repair shop.
Why does my Poco X3 Pro screen look yellow?
Check whether reading mode or a warm colour setting is on. If the tint remains, the panel may be ageing or damaged.
Is the Poco X3 Pro screen OLED?
No. It uses a 6.67-inch IPS LCD with a 120Hz refresh rate.
The bottom line
A white or black screen on a working Poco X3 Pro is usually a display connector, flex cable or LCD fault, all of which are affordable to fix. Rule out software and battery issues, reseat the connector, then replace the flex cable or screen as needed. If the phone shows no signs of life, suspect the board instead. Order the parts above or browse our Poco X3 Pro parts collection to get started. Work slowly, test before sealing, and keep the old part until you are sure the new one solves the problem. If you are unsure at any stage, a local repair shop can confirm the diagnosis before you buy parts.
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