Deformation of the smartphone body is a common problem, especially in Xiaomi models with an aluminum frame (Redmi Note series, POCO Even a slight bending can cause a cracked screen, a detached battery, or a button to malfunction. 80% of the time, it is caused by a drop on a hard surface or a pressure in your pocket (e.g., if you sit on your phone). Most of the curves can be eliminated by yourself if you act carefully and with an understanding of the design.
In this article, we'll look at 5 working straightening methods, from simple mechanical techniques to professional heating techniques, based on the experience of service center masters and user tests from forums. 4PDA And Mi Community. Importantly, not all of these are universal, depending on the strain, the model of the phone, and the body material. For example, the Xiaomi 12 Pro with a ceramic back panel will only work with the cold method, and the Redmi will work with the cold method. 9A Plastic can be adjusted even with hands.
Before you start, answer three questions:
- Where exactly did the body bend (in the center, at the buttons, near the connectors)?
- Are there visible cracks or tears on the screen/body?
- Is the phone running and operating consistently?
If the answer is yes to one question (except the first), it is better to contact the service - independent intervention can aggravate the problem.
1.Diagnosis of deformation: how to determine the degree of damage
Before you straighten, you need to assess the nature of the bending and possible hidden damage. Take the phone and follow these steps:
- π Visual inspection: place the device on a flat surface (glass or table). If the case "plays" when pressed or there is a gap between the screen and the frame - serious deformation.
- π Geometry check: Apply the ruler to the side faces. A gap of more than 1 mm indicates a strong bending.
- π Battery test: If the phone discharges quickly or spontaneously shuts down, it may be that the battery has detached from the case.
- ποΈ Functionality: check the power and volume buttons β they often βstickβ when the frame is deformed.
Pay special attention to models with AMOLED-The displays are thinner and stiffer glued to the body β even a minimal bending can lead to rupture of the plumes or damage to the matrix.
β οΈ Warning: If the phone overheats, does not charge or makes extraneous sounds (squeaking, crunch) after deformation, this is a sign of damage to the internal components.
| Degree of bending | Signs. | Recommendations |
|---|---|---|
| Light (up to 0.5 mm) | Visually almost imperceptibly, the phone is flat. | You can straighten with your hands or cold method. |
| Medium (0.5-1.5 mm) | Noticeable deflection, possible cracks at the buttons | Apply the method with heating or wooden bars |
| Strong (from 1.5 mm) | Phone "swinging" on the table, cracks on the body | Professional repairs (risk of damage to the fee) |
| Critical | The screen has moved away from the body, the phone does not turn on | Donβt try to straighten out β only the service center. |
Method 1: Hand straightening (for plastic and lightweight aluminum cases)
The most gentle method suitable for models with a plastic case (Redmi) 9/10, POCO M3) Or a slight bending of the aluminum frame, and the essence of the method is to apply neat pressure on the deformed zone without using tools.
Instructions:
- Remove the cover and protective film (if any).
- Place the phone on a soft surface (towel or foam).
- With your thumbs, press on the convex parts of the body, while pressing the opposite edges with your index fingers.
- Hold the pressure for 10-15 seconds, then check the result.
Remove the cover and the glass|Check for no cracks|Use a soft substrate|Press smoothly, no jerks.-->
Important: Do not apply force to the camera or connector USB-C β If you've tried 2-3 times, you've got to go to other methods.
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For better grip, slightly heat the body with a hairdryer (temperature up to 40).Β°C) before straightening.This will make the aluminum more plastic, but do not overheat - you risk damaging the glue under the screen.
Method 2: Use of wooden bars (for medium deformations)
This method is suitable for phones with an aluminum frame (Xiaomi). 11T, Redmi Note 10 Pro, where manual pressure does not help, will require two wooden bars (for example, beech or oak) 10-15 cm long and 3-5 cm wide, as well as soft fabric.
Algorithm of action:
- Wrap the bars with a cloth so as not to scratch the body.
- Place the phone between the bars so that the convex part touches one of them.
- Carefully squeeze the bars, controlling the force. Start with minimal pressure.
- Hold for 20-30 seconds, then check the result.
β οΈ Warning: Do not use metal objects (hammers, pliers) - they leave dents and can penetrate the body.
For models with a glass back panel (for example, Xiaomi Mi 11 Lite), this method requires special care. The glass can crack at uneven pressure.
- π‘οΈ Use silicone pads between bars and phone.
- π₯ Preheat the body with a hair dryer (up to 50)Β°C) to reduce the brittleness of the glass.
- π Control the compression force with a dynamometer (optimally - 5-10 kgf).
Method 3: Thermal straightening (for persistent deformations)
Heating makes the metal more malleable, eliminating even old curves, a method often used in service centers, but it can be repeated at home with safety, requiring a building hairdryer (or powerful household) and a thermocouple (optional).
Step-by-step:
- Remove all accessories from the phone (case, glass, SIM card).
- Set the hair dryer at a temperature of 60-80Β°C (for aluminum) or 40β50Β°C (for plastics).
- Heat the deformed zone for 1-2 minutes, keeping the hair dryer at a distance of 10-15 cm.
- Do not allow the body to cool, gently press on the bulge (hands or through a wooden bar).
- Repeat the heating and pressure 2-3 times until the bending disappears.
What happens if you overheat your phone?
| Case material | Max, heating temperature | Time of exposure | Risks. |
|---|---|---|---|
| aluminum | 80Β°C | 1-2 minutes | Oxidation of metal during overheating |
| Plastic. | 50Β°C | 30-40 seconds | Melting or loss of shape |
| Glass. | 40Β°C | 20β30 seconds | Cracks in uneven heating |
| Ceramics | Forbidden. | β | High risk of cracking |
After the thermal straightening, allow the phone to cool for 30 minutes before turning on, this will prevent condensation inside the case and possible circuits. If after the procedure, artifacts appear on the screen or overheat, immediately turn off the device and contact the service.
5. Method 4: Professional tools (for experienced users)
For complex cases (for example, after a strong impact), the masters use specialized devices:
- π§ Hydraulic press with silicone linings - evenly distributes the pressure, excluding point dents.
- π₯ Infrared lamp β heats the case without hot air streams, which is safer for internal components.
- π Laser level - helps control the geometry of the body after straightening.
If you decide to use the press, follow the rules:
- Use pads with a thickness of at least 5 mm.
- Set the pressure limiter at 15-20 kgf.
- Heat the case to 50.Β°C before compression.
- Control the process through a magnifying glass - this will help to notice microcracks.
β οΈ Note: Some Xiaomi models (such as the Mix Fold or Mix Flip) have movable mechanisms in the body. Their straightening requires disassembling the device - independent attempts will lead to loss of warranty and break the hinges.
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If the phone gets worse at catching the network after straightening, or if there are dead zones on the screen, this is a sign of damage to the antenna modules or plumes, in which case a complete disassembly and replacement of components is required.
Method 5: Contacting a service center (when nothing helps)
If you donβt succeed on your own or are afraid of damaging your phone, the best way to do this is to consult a professional.The cost of straightening in Xiaomi services varies from 1,500 to 5,000 rubles depending on the model and the degree of damage.
What includes professional repairs:
- π¬ Diagnostics on a special stand (checking geometry, internal components).
- π₯ Heat treatment in a furnace with temperature control.
- π οΈ Straightening on a hydraulic press with silicone linings.
- π Checking the battery and plumes after the procedure.
| Xiaomi model | Average cost of straightening (2026) | Duration of repairs |
|---|---|---|
| Redmi Note 12/13 | 1 800β2 500 β½ | 1-2 days |
| POCO X5/F5 | 2 000β3 000 β½ | 2-3 days |
| Xiaomi 13/14 | 3 500β5 000 β½ | 3-5 days |
| Black Shark 5/6 | 4 000β6 000 β½ | 5-7 days |
Note that in Xiaomi authorized service centers, the body straightening is often accompanied by free diagnostics of other systems (camera, speakers, sensors), this is true if the phone fell from a height or was subjected to heavy mechanical stress.
Before you take the device to the service, check:
- π Availability of a warranty card (if the phone is warranty, repairs can be free of charge).
- π Service center rating on Yandex.Maps or 2GIS (avoid workshops with a score below 4.5).
- π§ Original parts (ask if they use Xiaomi parts or analogues).
7. How to prevent repeated bending of the body
Even after a successful straightening, the phone remains vulnerable to deformities. To avoid recurrence, follow these guidelines:
- π± Use a hard case with reinforced corners (for example, Spigen Tough Armor or a slender case). UAG Monarch).
- π« Donβt carry your phone in your back pocket β squats and sitting put a critical load on your body.
- π§² Avoid magnetic holders in the machine β they can warp the aluminum frame with prolonged use.
- π Do not overheat your phone (do not play heavy games when charging, do not leave in direct sunlight).
For models with a thin body (Xiaomi 13 Lite, POCO F5) It is recommended to additionally install a protective frame made of carbon fiber, which distributes the load during falls and reduces the risk of bending by 60-70%.
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If you drop your phone frequently, consider military-standard models. MIL-STD-810G (Xiaomi Redmi Note 12 Pro+ or POCO X5 Their body can withstand falls from a height of 1.5 m without deformation.