Why screen frequency is important for the Redmi Note 9 Pro
When choosing a Xiaomi Redmi Note 9 Pro, many users pay attention to the characteristics of the screen — especially the refresh rate, which directly affects the smoothness of animations, responsive interface and even battery life. But with the Redmi Note 9 Pro, the situation is not so clear: there are conflicting data on how much hertz its display supports — 60 or 90.
In this article, we will look at how often the Redmi Note 9 Pro actually refreshes, whether it can be changed software, and how it affects the user experience. We will also compare the model with competitors and give recommendations for optimizing the display, and if you are planning to buy or already own this smartphone, this information will help avoid common misconceptions.
What Xiaomi Says About Screen Frequency
According to official data from Xiaomi, Redmi Note 9 Pro (model) M2003J6A1G for the global market) equipped with a 6.67-inch IPS-This information is confirmed on the manufacturer's website, in technical specifications and even in the documentation for the device. However, many users still confuse this model with the Redmi Note 9 Pro Max or later versions, where the frequency may differ.
It’s important to understand that the Redmi Note 9 Pro (released in March 2020) doesn’t support 90Hz out of the box. Unlike the flagship models of the same period (such as the POCO X2 or Redmi K30), where the 120Hz was already standard, the budget Note lineup remained on the classic 60Hz.
- 📱 Model: Redmi Note 9 Pro (M2003J6A1G)
- 🔄 Screen frequency: 60 Hz (fixed)
- 📅 Year of issue: March 2020
- 💡 Alternatives with 90 Hz: POCO X2, Redmi K30, Realme 6 Pro
⚠️ The network often confuses Redmi Note 9 Pro with Redmi Note 9S (For some regions, or Redmi Note 9 Pro Max. The latter also had 60 Hz, but in later models (for example, Note 10 Pro) already has support for 120 Hz!
How to check the screen frequency on Redmi Note 9 Pro yourself
If you are in doubt about the refresh rate of your Redmi Note 9 Pro, you can check it in several ways, and the easiest way is to use special apps from Google Play, such as:
- 📊 Display Tester – shows the current refresh rate, response time and other display parameters.
- 🔍 Screen Refresh Rate is a minimalist app for quick checks.
- 🛠️ CPU-Z — In the "Device" section, displays information about the display, including frequency.
You can also use the hidden settings of Android:
- Open the Settings. → The phone.
- Press the MIUI version 7 times to activate the developer mode.
- Back to Settings → Additionally. → For developers.
- Find the option to Show the screen refresh rate (if any).
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If the developer's settings don't have a screen frequency, then your model doesn't support it at the software level, and that's an indirect confirmation that the display only works at 60Hz.
Another way is to use a visual test, run an animation on the screen (like scrolling through a list or 60 FPS video) and compare the smoothness to a device where exactly 90 Hz is visible to the naked eye, especially when you compare it sideways.
Can I overclock the screen of the Redmi Note 9 Pro to 90 Hz?
Unfortunately, it is not possible to overclock the Redmi Note 9 Pro’s screen to 90 Hz hardware, and the frequency of the display update depends on the physical characteristics of the matrix and controller, which are only designed for 60 Hz in this model. Any attempts to change this software (through firmware, kernel or engineering menu) will lead to:
- 🔥 Overheating – the display controller is not designed to work at higher frequencies.
- 🖥️ Artifacts – possible flickering, stripes or “teared” animations.
- 🔋 Fast battery discharge – even if acceleration succeeds, power consumption will increase by 1.5-2 times.
- ⚠️ Loss of warranty – any manipulation of firmware will void warranty obligations.
You can find "instructions" on overclocking through editing a build.prop file or installing custom cores, but they either don't work or lead to unstable system operation. The only way to get 90 Hz on the Redmi Note 9 Pro is to buy another smartphone.
⚠️ Note: Some "craftsmen" offer to replace the display module with an analogue of the POCO X2 or Redmi K30, However, this is extremely risky: in addition to the high cost of repair (from 5 000 rubles), there is no guarantee that the sensor and backlight will work correctly, and after such a replacement, there may be problems with calibration of colors and brightness.
What happens if you force 90 Hz in the settings?
Comparison with competitors: who offered 90 Hz in 2020
In 2020, when the Redmi Note 9 Pro was released, the market was already offering budget smartphones with screens of 90 Hz and higher, for example, the Realme 6 Pro (90 Hz) or POCO X2 (120 Hz) cost a little more, but provided a smoother interface.
| Model | Screen frequency | Type of matrix | Price in 2020 (RF) | Battery |
|---|---|---|---|---|
| Xiaomi Redmi Note 9 Pro | 60 Hz | IPS LCD | ~18 000 ₽ | 5020 mAh |
| Realme 6 Pro | 90 Hz | IPS LCD | ~22 000 ₽ | 4300 mAh |
| POCO X2 | 120 Hz | IPS LCD | ~20 000 ₽ | 4500 mAh |
| Samsung Galaxy M31 | 60 Hz | Super AMOLED | ~21 000 ₽ | 6,000 mAh |
| Redmi K30 | 120 Hz | IPS LCD | ~25 000 ₽ | 4500 mAh |
As you can see from the table, the Redmi Note 9 Pro was losing to competitors in screen frequency, but won in battery capacity and price. The choice between 60 Hz and 90/120 Hz depended on the user's priorities: if smoothness is important (for example, for games or scrolling social networks), you should look at the POCO X2 or Realme 6 Pro. If autonomy and budget come first, the Note 9 Pro remained a good option.
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In 2020, the 90Hz budget segment was a premium feature: Xiaomi bet on battery and price, sacrificing screen smoothness.
How to optimize the screen at 60 Hz: tips for smoothness
Even with a 60Hz refresh rate, you can improve the subjective smoothness of the interface on the Redmi Note 9 Pro. Here are some work tips:
- 🚀 Turn on the animation. MIUI To maximum: Go to Settings → Special facilities → Windows animation and select 1x (Or turn it off completely for speed).
- 🎮 Use Performance Mode: In Settings → Battery → Select Performance Mode for High Performance Games.
- 🔄 Update. MIUI Update: New firmware optimized graphics. Check the updates in Settings → The phone. → Updating the system.
- 🛡️ Disable unnecessary widgets: They consume resources and can cause slowdowns.
You should also pay attention to the developer’s settings:
Activate the developer mode (7 taps according to the version) MIUI)|Energize "Accelerate" GPU-rendering"|Disable "Window animation" and "Switch animation"|Enable "Forcing" GPU-rendering” (may cause artifacts!)-->
If you play games, try limiting FPS to 60 frames per second, which synchronizes the output of the image with the screen frequency and reduces animation gaps, and this will work with utilities like Game Turbo (built into MIUI) or third-party applications like GFX Tools.
Frequent Myths About Redmi Note 9 Pro Screen Frequency
There are many myths surrounding the Redmi Note 9 Pro, which are related to the frequency of the screen.
- "You can unlock 90 Hz through the engineering menu." ❌ Reality: The engineering menu (#4636###) doesn't have options to change the screen frequency.
- "Some regions sold Note 9 Pro with 90 Hz." ❌ Reality: All versions of the Redmi Note 9 Pro (including the Indian and global) had 60Hz. POCO X2.
- "Custom firmware (e.g. Pixel Experience) adds 90Hz." ❌ Reality: Firmware can optimize the system, but you can’t physically change the frequency of the matrix.
- "60 Hz frequency worse for eyes than 90 Hz." ⚠️ Reality: No scientific evidence of 60Hz harm. Screen flickering (if any) depends on the quality of PWM brightness control, not the refresh rate.
Another popular myth is that the Redmi Note 9 Pro is "locked" at 60Hz due to software constraints, and in fact, the hardware limitation is that the NT36672C display controller (used in this model) simply does not support higher frequencies, as confirmed by the analysis of circuitry and component datasets.