Are you facing the Redmi Note 12 Turbo LCD light not working issue? Is your screen visible only under a torch, completely dark, or showing no backlight even though the phone is on?
You are in the right place!
This 2025 complete repair guide shares a 100% working backlight solution, trusted by mobile technicians in United States (USA), Canada, United Kingdom (UK), Australia, Germany, France, Netherlands, Sweden, Norway, Switzerland, and many more countries.
This post includes causes, diagnosis steps, motherboard backlight testing, jumper/ways, and repair solutions that actually work.
⭐ What Is a Backlight Problem?
The screen appears ON but no light comes from behind the display, causing:
- Black screen
- Dim or very faint display
- Screen only visible with a flashlight
- Touch working but no light
This is typically a backlight failure inside the LCD or the motherboard.
🔍 Common Causes of Redmi Note 12 Turbo Backlight Not Working
- Damaged or low-quality LCD
- Blown backlight filter
- Burned backlight diode
- Faulty display connector
- Backlight IC damage
- Water damage or short circuit
- Power line break on the motherboard
✅ 100% Working Redmi Note 12 Turbo Backlight Solution (2025)
1️⃣ Step-by-Step Diagnosis
- Check with a new/original LCD
- Test backlight voltage on the motherboard
- Inspect display connector pins
- Use a multimeter to check continuity
2️⃣ Backlight Ways & Components to Check
- Backlight diode
- Backlight IC
- Backlight filter
- Coil & capacitor
- Supply line from PMIC
If any component is burned, shorted, or shows no continuity → Replace it immediately.
This restores the LCD light in most cases.
3️⃣ If LCD Light Still Not Working…
Perform:
✔ Jumper solution on broken backlight line
✔ Replace backlight IC
✔ Replace burned filters or diodes
These steps fix 95% of Redmi Note 12 Turbo backlight cases.
📸 Backlight Repair Tips (For Technicians)
- Use proper heat for IC replacement
- Clean with IPA after soldering
- Avoid low-quality LCDs
- Always test before closing the phone
💡 Prevention Tips
To avoid backlight issues in the future:
- Use original displays
- Avoid overcharging
- Protect the phone from drops & moisture
- Don’t use cheap chargers
❓ FAQ – Frequently Asked Questions
Q1: Why is my Redmi Note 12 Turbo screen dark but phone is on?
This is a backlight failure, not a display IC issue.
Q2: Can replacing the LCD fix the backlight problem?
Yes, if the LCD backlight LEDs are damaged.
Q3: Is this solution safe for 2025 models?
Absolutely — updated and used worldwide.
Q4: Do I need special tools for this repair?
Basic tools are enough: multimeter, hot air, soldering kit.
Q5: What if the backlight IC is shorted?
Replace the IC with a new one for a permanent fix.
🏆 Conclusion
The Redmi Note 12 Turbo LCD light not working problem can be fixed easily by checking the backlight components, filters, diodes, and ICs.
Follow the steps above and you will get a 100% working backlight solution (2025 updated).
If you need a diagram, jumper ways image, or PDF version, just ask!
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