Xiaomi Redmi G24 is a popular gaming monitor with a refresh rate of 165 Hz, which is valued for the ratio of price-quality. However, even with such a device can be difficult when you first turn on or after a long downtime. This article will help you understand how to properly connect and start the monitor, avoiding the typical errors that lead to a black screen or lack of response to buttons.
We will not only look at the basic steps (connecting to the network and the signal source), but also the nuances that are not mentioned in the official instructions, such as why the monitor may not respond to the power button after updating the firmware or how to reset to the factory settings if the screen remains black. Special attention will be paid to the diagnosis of problems with cables DisplayPort/HDMI and power supply – these are frequent causes of “imaginary” breakdown.
If you've just unpacked the Redmi G24 or found it stopped turning on after a thunderstorm/outage, here's a proven solution. All the instructions are tested on current 2026 firmware versions and take into account the features of the MMD24G24 factory art model.
1.Preparation for the first turn on: what to check before connecting
Before you press the power button, make sure all components are connected correctly. Errors at this stage are the cause of 60% of service center complaints about a non-working monitor.
- 🔌 Power supply: Use only the original Xiaomi adapter with parameters 19V/3.42A (the case must be marked MDY-19-EU). Substitutes may not produce enough current, which will result in a cyclical reboot of the monitor.
- 🖥️ Video Cable: 165Hz is only suitable for DisplayPort 1.2 or HDMI 2.0. Older versions of cables (e.g., HDMI 1.4) will limit the frequency to 60Hz.
- ⚡ Socket: Check the voltage with a multimeter — it should be within 220-240V. The voltage surges can burn the monitor's power controller.
- 🔄 Power button: on Redmi G24 it is combined with a menu control joystick. Press it with one short press (don't hold for longer than 1 second).
Pay special attention to the power cable: it should sit tightly in the monitor connector. If you notice a backlash, it is a sign of wear and tear of the contacts (a common problem after a year of use), in which case, try to lift the cable slightly upwards when connecting, sometimes this helps to restore contact.
The original power supply is connected|DisplayPort cable is used 1.2/HDMI 2.0|The socket gives stable 220V|The power button is pressed once (not held down)|The monitor is on a flat surface (no distortions)-->
⚠️ Warning: If the monitor has previously been operated at low temperatures (below +5°C), allow it to warm up to room temperature for 1-2 hours before turning on.
2. Basic inclusion: step-by-step instruction with photo
Follow this algorithm if you are connecting the Redmi G24 for the first time or after a long downtime:
- Connect the power supply to the monitor and the socket. Make sure the indicator on the power button flashes white (means ready to turn on). If the indicator is not on, check the power cable and the socket.
- Connect the signal source (PC, laptop, console) via DisplayPort or HDMI. The recommended port is DP 1.2 (marked on the back of the monitor).
- Press the power button once. In 3-5 seconds, the Xiaomi logo should appear, then the image from the source. If the screen remains black, but the indicator is blue, the signal cable or the source is the problem.
The photo below shows the correct connectors for connection:
If the monitor is turned on but the image is missing:
- 🔄 Switch the signal source on your PC/laptop (Win + P → select "Second Screen Only").
- 🔍 Check if the indicator on the power button is blue (working) or orange (standby).
- 🛠️ Try another cable or port on your video card.
💡
If the monitor does not respond to the power button, disconnect it from the network for 30 seconds, then hold the button for 10-15 seconds. This will reset the residual charge in the capacitors and can "wake up" the device.
3. Problem Solving: The monitor is not turned on or no image
If the Redmi G24 does not show signs of life after basic actions, use this table for diagnosis:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| The indicator is not on, there is no reaction to the button | Faulty power supply or cable | Try another power supply (19V/3.42A). Check the cable with a multimeter. |
| The indicator flashes orange, the screen is black. | No signal from the source or incorrect input | Press the Source button on the joystick and select the correct input (DP/HDMI). |
| The indicator is blue, but there is no image. | Problem with cable or resolution | Replace the cable with a certified DP 1.2. On a PC, set the resolution of 1920×1080@165Hz. |
| The monitor is turned on and off immediately. | Overheating or firmware failure | Turn it off for 1 hour, then re-energize. If it doesn't work, you need to flash it back. |
A special case is if the monitor turns on, shows the Xiaomi logo, and then goes out. This is a sign of a malfunction in the firmware.
- Shut the monitor off the grid.
- Press the power button and, without letting go, connect the power cable.
- Hold the button for 15-20 seconds until the recovery menu appears.
- Select Reset to Factory (reset to factory settings).
What if the reset didn't help?
⚠️ Warning: If the monitor was connected to a power source with unstable voltage (for example, through an extension cord without a stabilizer), the fuse on the board could burn out. Its replacement will cost 500-800 rubles, but requires soldering.
Setting up the signal source: why the PC can't see the monitor
A common problem is that the monitor is on, but Windows/macOS doesn't define it as a second screen.
- 🖥️ Wrong port on a graphics card: If you have a discrete graphics card, connect Redmi G24 to the ports on it, not to the motherboard. Except for the AMD Ryzen processors with integrated graphics (series 5000G/5600G).
For game consoles (PS5/Xbox Series X):
- On PS5, go to Settings → Screen & Video → Resolution and select 1080p (165Hz requires DisplayPort, which consoles don’t support).
- On Xbox, turn on 120Hz in the screen settings, but note that the Redmi G24 in this mode will work at 1440p resolution (upscale with 1080p).
5. Firmware Update: When You Need It and How to Check Version
The monitor firmware affects the stability of the work, support for new standards (FreeSync Premium, HDR10) and bug fixes (for example, flickering at low brightness).The current version for the Redmi G24 for 2026 is V01.03.12 or later.
To check the current version:
- Press the control joystick on the back panel.
- Go to Menu → System → Information.
- Find the FW Version line.
If the version is outdated, update the firmware:
- 📥 Download the current file from the official Xiaomi website (section "Monitores → Redmi G24").
- 💾 Unpack the archive and copy the.bin file to the flash drive (FAT32, no more than 32 GB).
- 🔌 Connect the flash drive to the USB-Type A port on the monitor (side-by-side).
- 🔄 Go to Menu → System → Upgrade and follow the instructions.
⚠️ Warning: Don't pull the flash drive out or turn off the monitor during the upgrade (the process takes 2-5 minutes). If you interrupt the firmware, the monitor may stop turning on - you will need to flash through the service port (UART).
💡
Update your firmware only if there are critical bugs (flickering, spontaneous shutdowns) and new versions can add unnecessary features but also introduce new errors.
6. Reset to factory settings: when necessary
Resetting will help if:
- 🔄 The monitor is turned on, but the image is distorted (incorrect colors, blurred).
- ⚡ After the firmware update, artifacts or lags appeared.
- 🔊 Control buttons or sound (if speakers are connected) are not working.
Resetting instructions:
- Turn off the monitor with the power button.
- Press the control joystick and, holding it, press the power button.
- Hold the joystick for 10-15 seconds until the recovery menu appears.
- Select Reset to Factory (use a joystick to navigate).
- Confirm the reset and wait for the reboot (it will take ~30 seconds).
After resetting, you will need to reconfigure:
- 🎯 Resolution and refresh rate (1920×1080@165Hz).
- 🎨 Color profile (sRGB for graphics, User for games).
- 🔊 Loudness (if you use built-in speakers)
💡
Before reset, take a picture of the current screen settings (brightness, contrast, color temperature) – this will save time for re-tuning.
7. Frequent Questions and Myths About Xiaomi Redmi G24
We understand the common misconceptions and give clear answers:
Can I use a monitor without a power supply (from USB-C)?
Why doesn’t the monitor show 165Hz through HDMI?
How to turn on HDR on this monitor?
The monitor started flickering after the firmware update.
Can I put a monitor on the wall?
8.When to contact the service: signs of hardware malfunctions
Not all problems can be solved by yourself. Contact the service center if:
- 🔥 There is a smell of burning or the monitor is very hot (especially in the area of the power supply).
- 💥 The power indicator flashes red, indicating a short circuit.
- 🖼️ The screen has vertical/horizontal bands that do not disappear after reset.
- 🔊 The monitor emits a high-frequency squeak when turned on (transformer malfunction).
The cost of repairing the Redmi G24 in 2026:
| Malfunction | Cost (₽) | Duration of repairs |
|---|---|---|
| Replacement of the power supply | 2 500–3 500 | 1-2 days |
| Repair of the matrix (broken pixels) | 5 000–8 000 | 3-5 days |
| Replacement of the controller (circuit burned) | 4 000–6 000 | 2-3 days |
| Flashing through UART | 1 500–2 500 | 1 day |
Before the service visit:
- Take a photo or video of the malfunction (this will help the wizard diagnose the problem faster).
- Check if the center has experience with Xiaomi monitors (not all services are taken for a brand).
- Check if the warranty is valid (for the Redmi G24, 12 months from the date of purchase).
💡
If the monitor is warranty, do not open the case yourself - this will void the warranty obligations. Even to reset the settings, use official methods (via the menu).