If your Redmi 12 5G is turning on but the display shows very dim light, or the screen goes black while the phone still works, then you are facing the backlight problem.
This is one of the most common issues in Redmi phones, and today we will explain why it happens, how to identify it, and what you can try safely before visiting a technician.
⭐ What Is the LCD Backlight Problem?
The backlight is the part of your display that provides brightness.
If it stops working, your phone might show:
- Screen ON but very dim (only visible under strong light)
- No display light even though the phone vibrates or rings
- Display looks black but notifications still arrive
- Flashlight and touch work, but the screen stays dark
📌 Common Reasons for Backlight Issues in Redmi 12 5G
- Display connector not fitted properly
- Software glitches after update
- Dropping the phone
- Using low-quality chargers
- Water/moisture exposure
- Faulty display panel
🛠️ Quick Safe Checks You Can Try
Here are a few non-technical, safe checks you can do at home:
✔ Restart Your Phone
A simple restart can sometimes bring the display back.
✔ Force Reboot
Press and hold Power + Volume Down for 10–15 seconds.
✔ Remove a Case or Glass Protector
Sometimes thick cases or protectors create pressure on the display.
✔ Increase Brightness with Google Assistant
Say “Hey Google, increase brightness”
(Useful if the screen is too dim to see).
✔ Try Connecting to an External Display
Use a USB-C to HDMI adapter to confirm the phone is working internally.
If none of these work, the problem is likely hardware-related, and you should visit a certified repair center.
🔧 When to Visit a Technician
If a trained technician checks your phone, they will normally inspect:
- The display connector
- Backlight components on the motherboard
- LED strip or display IC
- Power output to the LCD backlight
This requires professional tools, so always get help from an expert.
🎯 Best Solution for Redmi 12 5G Backlight Problem
In most cases, the issue is solved by:
- Replacing the LCD display
- Cleaning or refitting the display connector
- Repairing the backlight circuit (done only by experts)
After that, your screen brightness will be fully restored.
📝 Final Words
The Redmi 12 5G LCD light issue is common but easily fixable.
If basic checks don’t help, you should always go to a trained technician to avoid damage. With proper repair, your display backlight will work 100% normally again.
For more mobile repair tips, stay connected!