The proximity sensor in Xiaomi smartphones is a small but critical element that is responsible for turning off the screen during a call when you hold the phone to your ear. If it fails, you get random taps during a conversation, spontaneous turn on the speakerphone or the constant glow of the display. In 2026, replacing this sensor costs different things: from 500 rubles for self-repair to 3,500+ rubles in official service centers. But why such a range of prices?
In this article, we will discuss:
- π Signs of proximity sensor malfunction (and how not to confuse it with firmware problems)
- π° Current replacement prices in 2026 for popular models (Redmi Note 12, Poco X5, Mi 11, etc.)
- π§ Cost of spare parts and where to buy them (AliExpress vs. Russian stores)
- β οΈ Risks of self-repairing - when it's best not to save
- π Where is Cheaper: Comparison of Service Centers, Workshops and Online Services
Let's warn you right away: 90% of the time, the problem is solved by software (like resetting or calibrating the sensor), and only the remaining 10% require a physical replacement, so check a few simple steps before you carry your phone for repair, and they will save you time and money.
Signs of proximity sensor malfunction: how to diagnose a problem
The main symptom is that the screen doesn't go out when you hold the phone to your ear, but it's not always the sensor's fault.
- π± The screen goes out, but with a delay (1-2 seconds) β most likely the problem is in the firmware or settings.
- π The sensor operates through β possibly contamination or poor plume contact.
- π« The screen does not go out at all, even after a reboot β a high probability of the sensor failing.
- π¦ The keylights do not respond to the approach of the hand (relevant for models with an infrared sensor).
Before you run to the service, try recalibrating the sensor:
- Open the Phone app and type ##6484## (on some models ##0*##).
- In the test menu, select Proximity Sensor.
- Check the sensor response: cover it with your hand β the value should change from 5 to 0.
If the sensor doesn't respond or shows incorrect values, try resetting your phone (Settings β System β Reset). If that doesn't help, it's time to think about replacing.
π‘
On some Xiaomi models (such as the Redmi Note 10 Pro), the proximity sensor is combined with the light sensor, in which case it will cost more to replace, since the module is required in the assembly.
How much does it cost to replace the proximity sensor in 2026: a comparison of prices
The cost of repair depends on three factors:
- Phone model β on flagships (Mi 13, Xiaomi 14) sensor is more expensive than on budget (Redmi A2, Poco M5).
- The official Xiaomi center takes 30-50% more than private workshops.
- In Moscow and St. Petersburg, prices are higher by 15-20% than in the regions.
| Smartphone model | Cost of sensor (β½) | Cost of work (β½) | Totally (β½) |
|---|---|---|---|
| Redmi Note 12 / 12 Pro | 300β600 | 800β1200 | 1100β1800 |
| Poco X5 / X5 Pro | 400β700 | 900β1300 | 1300β2000 |
| Xiaomi 11T / 12T | 600β1000 | 1200β1800 | 1800β2800 |
| Mi 13 / 13 Pro | 1000β1500 | 1500β2500 | 2500β4000 |
| Redmi A2 / Poco M5 | 200β400 | 600β1000 | 800β1400 |
Important: In official service centers, Xiaomi often insists on replacing the entire display module (even if the sensor is separate), which increases the cost to 5000-8000 β½.
Prices for spare parts vary depending on the supplier:
- π AliExpress is the cheapest (200-800)β½), but delivery of 2-4 weeks.
- π¬ Russian stores (e.g. MegaDetal, FixPriceService) β 400β1200β½, delivery 1β3 days.
- π§ In the case of craftsmen, spare parts are often sold at a markup of 20-30%.
π‘
On Xiaomi models older than 2020 (for example, the Redmi Note 9), the sensor is often paired with a speaker, in which case the replacement will cost 1.5-2 times more expensive.
Self-replacement: step-by-step instructions and risks
If you want to change the sensor yourself, you will need:
- π§ A set of screwdrivers (PH00, Y00, tweezers).
- π₯ A dryer or a glue heating station (for models with adhesive display).
- π± New sensor (check compatibility by model number!)
- π§΄ Clay. B-7000 or double-sided tape for fixation.
Turn off the phone and remove it. SIM-map|Make a backup copy of the data|Discharge the battery to 30-50%|Prepare the workplace (clean surface, good lighting)-->
Step-by-step:
- Remove the back cover (heating the edge hair dryer to soften the glue).
- Disconnect the battery (required!), then turn off the display plume.
- Find the proximity sensor β itβs usually located next to the front camera or speaker.
- Carefully unfurl or disconnect the connector of the old sensor, install a new one.
- Put the phone back together and check its performance.
β οΈ Warning: On Xiaomi 12/13 models, the sensor is soldered to the motherboard. Replacement requires a soldering dryer and microelectronics experience. Without the skills, you risk damaging the board!
If you've never taken a smartphone apart, it's best not to take the risk. Mistakes in self-repair can lead to:
- π Battery damage (fire risk!)
- π± Display detachment or plume damage.
- π« Lost warranty (if the phone is still warranty).
What if the sensor does not work after replacement?
Where to replace the sensor: comparison of services
The choice of repair site depends on your budget and the time period for which you are ready to part with your phone.
| Type of service | Average price (β½) | Duration of repairs | Pluses | Cons |
|---|---|---|---|---|
| Official Xiaomi service | 2500β4000 | 3-7 days | 6-12 months warranty, original parts | Expensive, long-term, can impose unnecessary services |
| Private workshop | 1200β2500 | 1-3 days | Cheaper, faster, often give a guarantee | Risk of unoriginal spare parts |
| Online services (mail/courier) | 1000β2000 | 5-10 days | Low prices, convenient. | Long-term, the risk of losing your phone during shipment |
| Independently. | 300β1000 | 1-2 hours | Maximum savings | The risk of damage to the phone, no guarantee |
If you are interested in a warranty, choose an official service or a proven workshop with reviews. To save money, you can contact small repair points, but you must:
- π Check reviews on Yandex.Maps or 2GIS.
- π Ask for a check and a warranty card (even for 1 month).
- π§ Find out what parts are used (original or analogue).
β οΈ Warning: Some services may say that the sensor is faulty, although the problem is the firmware. Always require diagnostics before repairs begin!
How to save money on replacing the proximity sensor
If your budget is tight, here are a few ways to reduce costs:
- Buy the parts yourself. The masters often charge 100-300% on the parts, order the sensor on AliExpress or in a trusted store (for example, MegaDetal.ru) and bring it to the master.
- Look for stocks. Many services offer discounts for recalls or repairs of multiple devices.
- Combine the repairs. If the phone has other problems (like a broken screen), replace everything at once, which is cheaper than a few visits.
- If the phone is warranty-free and the sensor is faulty due to the manufacturer (for example, factory defect), repairs should be free.
Another way to save money is to exchange a phone under the trade-in program. Some salons (for example, the Messenger or M. Video) accept smartphones with a faulty sensor, discounting 1000-3000 β½ when buying a new one.
But be careful with too-cheap offers, if the master charges less than 800 for a replacement.β½Most likely:
- π Uses used parts.
- π« Doesn't give a warranty.
- π§ Works without proper qualifications.
π‘
On Xiaomi models with AMOLED- screens (e.g. Mi 11), the proximity sensor is often soldered into the display, in which case it is impossible to replace the sensor only - you have to change the entire module.
Frequent Mistakes When Replacing a Sensor and How to Avoid Them
Even experienced craftsmen sometimes make mistakes that lead to new breakdowns.
- π Bad plume connection β screen flashes or doesn't respond to touch. Solution: check for fixing connector.
- π₯ Overheating at soldering β damage to the motherboard. Solution: Use a temperature-adjusted soldering station (max. 350Β°C).
- π§΄ Improper fixation of the sensor β it falls off after a week. Solution: use glue B-7000 or double-sided tape 3M.
- π± Damage to waterproofing gaskets β phone loses waterproof. Solution: check the leakage after assembly.
If the sensor is not working properly after replacement, try:
- Reboot the phone.
- Reset settings (Settings β System β Resetting).
- Update the firmware to the latest version.
- Check whether the sensor interferes with the protective glass or cover.
β οΈ Warning: Some Xiaomi models (e.g. Poco F3) require flashing after the sensor is replaced, otherwise it won't work. Check with the wizard beforehand!