How to turn on 120 Hz on Xiaomi Redmi 9T: all ways to overclock the screen in 2026

Xiaomi Redmi 9T

60 Hz

90 or 120 Hz

Redmi 9T

real-life

Let's warn you right away: there's no 120Hz hardware support on the Redmi 9T -- the maximum possible frequency without a replacement display is 90Hz, and then with a loss of stability. All the "instructions" on the Internet promising "easy 120Hz acceleration" either keep silent about the consequences or spread outdated data. We've compiled current methods for 2026, including workarounds for those willing to sacrifice warranty for experimentation.

The screen refresh rate (Hz) determines how many times a second the picture is updated on the display. 9T his IPS LCD-With the Snapdragon 662, the 60Hz chip is a trade-off between performance and power consumption, but if you're risk-averse, you can try to overclock the screen software or even replace it with a high-frequency support.

1. Check the current screen frequency on the Redmi 9T

Before you try to overclock the display, make sure your Redmi 9T is actually running at 60Hz. Some firmware (like custom ones) can hide real values.

Methods of verification:

• 📱 Through Settings: Go to Settings → Display. → Screen refresh rate. If you don't have a point, your phone doesn't officially support Hz change.
• 🔍 Special apps: Install Display Tester or Screen Refresh Rate from Google Play.
• 🎮 Test in games: start the game with support for high FPS (For example, call of Duty Mobile and turn on the display FPS in the settings of the graphics. FPS No more than 60 – the screen is locked.

If all the tests are 60 Hz, move on to the next sections, but remember, even if you can accelerate the screen to 90 Hz, it does not guarantee stable operation, and many users complain of artifacts, flickering and overheating after such manipulations.

⚠️ Note: Frequency testing applications may show incorrect data on uncertified firmware. 2-3 utility.

Method 1: Overclocking through the engineering menu (without root)

The softest method, which doesn't require super-user rights, is suitable for those who don't want to risk data, but are ready for possible interface glitches.

Instructions:

1. Open the Phone app and enter the code: ##4636##.
2. In the menu that opens, select Testing → Display.
3. Find the Refresh Rate option (can be called Screen Refresh Rate or Display Hz).
4. Try manually entering 90 or 120, and if the field is inactive, it won't work.

If the screen flickered or appeared to be streaked, immediately return the value to 60 Hz and restart the phone. This method only works on some versions of MIUI 12.5 and below.

Backup data | Check battery power (minimum 50%) | Make sure the phone doesn't overheat | Prepare to reset when the system fails-->

Method 2: Change frequency through ADB (for advanced)

A deeper intervention that requires the phone to be connected to a PC works by changing system parameters, but does not guarantee stability.

What you need:

• 🖥️ Computer with drivers installed ADB and Fastboot.
• 📋 Included debugging by USB on the phone (Settings) → The phone. → Version. MIUI — Press 7 times, then return to Additional → For developers → Debugging by USB).
• 🔌 USB-Type C Cable (preferably original).

Step-by-step:

1. Connect your phone to your PC and open the command line (Win + R → cmd).
2. Enter the command to check the connection: adb devices If the device is displayed – go further.
3. Frequency change command: Adb shell settings put global peak_refresh_rate 90 (substitute 90 on 120, if you want to experiment).
4. Reboot your phone: adb reboot

After restarting, check the frequency through the Display Tester app. If the screen is not working properly, return the value with the command:

adb shell settings put global peak_refresh_rate 60

⚠️ Attention: On some firmware MIUI 13/14 This method leads to a reboot cycle, and if the phone is stuck on the logo, you'll have to reset it through Fastboot.

💡

Before using ADB, create a restore point in TWRP (if installed) to help roll back changes when a crash occurs.

Method 3: Install a custom firmware with support for 90 Hz

The most radical, but also the most effective, method is to run alternative software, like LineageOS or Pixel Experience, and some builds contain patches to overclock the screen.

Pros of the method:

• ✅ The ability to select the frequency in the settings (if the firmware supports).
• ✅ Improved productivity and optimization.
• ✅ Regular security updates.

Cons:

• ❌ Loss of guarantee.
• ❌ The risk of “bricking” the phone in case of an error.
• ❌ Possible bugs with camera, sensors or network.

Recommended firmware for Redmi 9T (lime):

Firmware process:

1. Unlock the bootloader through the Mi Unlock Tool (requires a Xiaomi account binding).
2. Install custom recovery (TWRP or OrangeFox).
3. Download firmware and a 90Hz kernel (like LimeKernel).
4. Sweat through recovery by following the instructions for your model.

5. Alternative ways to improve smoothness without overclocking

If you do not want to take risks, but you need to increase the responsiveness of the interface, try these methods:

Optimization of MIUI:

• 🚀 Enable Performance Mode: Settings → Special facilities → Performance mode (increases the clock frequency of the processor).
• 🎯 Turn off animations: in Settings → The phone. → Version. MIUI (7 times), then additionally → For developers → The scale of the animation window / transition - set 0.5x.
• 🔄 Cache reset: Settings → Annexes → Application management → Cash – Clear the cache of system applications.

Software utilities:

• 🤖 SetEdit – allows you to change hidden settings MIUI (root).
• 🎮 Game Turbo – Xiaomi’s built-in game optimization app (increases) FPS downsizing).

Hardware improvements:

• 🔋 Replacing the battery with a new one (old battery may limit performance).
• 🔥 Use of cooling stand during games (overheating reduces the temperature) FPS).

💡

Even without screen overclocking, disabling animations and optimizing MIUI can make the interface subjectively smoother by 20-30%.

6. Risks and consequences of overclocking the screen on the Redmi 9T

Before you try to increase the refresh rate, evaluate the possible problems:

Short-term effects:

• 🔥 Overheating: CPU and display will work at their limit, which will lead to an increase in temperature.
• 🔋 Increased battery consumption: when 90 Hz autonomy will decrease by 15-25%.
• 🖥️ Image artifacts: blurry, flickering or "shadows" are possible when scrolling.

Long-term risks:

• ⚡ Reduction of the life of the matrix: IPS-The panels are not designed for long-term operation at higher frequencies.
• 🛠️ Loss of warranty: Any interference with the software will void the warranty Xiaomi.
• 💥 Irreversible damage: if an error in the firmware or kernel, the phone may fail.

Redmi 9T statistics (according to the 4PDA forum):

⚠️ Attention: On Redmi 9T With a Snapdragon 662 processor, it's technically impossible to overclock a screen above 90 Hz -- the chipset doesn't support that many frames. All the "successful" 120 Hz cases on this phone are either fake or software error.

FAQ: Frequent questions about overclocking the Redmi 9T screen