Infinix Hot 8 {X650} lcd light problem solution
If your Infinix Hot 8 X650 turns on but the screen remains black or the LCD backlight doesn’t work, you're dealing with a display light issue. This complete hardware solution will guide you through testing the backlight power lines, filters, coils, fuse, and backlight IC.
This video is ideal for mobile repair technicians looking to solve LCD light failure, especially after water damage or screen replacement.
💡 Common LCD Light Issues
Display is on, but no backlight
Screen visible only under flashlight
Backlight flickers or dim
No screen light after display change
Phone vibrates or rings, but screen is dark
🧰 Tools Required
Multimeter
Hot Air Station
Soldering Iron
Microscope
IPA Cleaner
Jumper Wires
Tested LCD
🔧 30 Step-by-Step Instructions
Power off Infinix Hot 8 X650
Remove SIM tray and open the back panel
Disconnect the battery
Detach LCD flex from the mainboard
Clean LCD connector with IPA
Check LCD with flashlight to confirm image
If image is present, LCD light is the issue
Test with working LCD to confirm fault
Use multimeter to test LCD connector light pin
Expected voltage: usually 15–22V on backlight pin
If no voltage, trace line to backlight section
Check backlight diode for short or open
Replace diode if faulty
Check backlight filter or fuse
Replace open filter or blown fuse
Inspect backlight coil (inductor)
Replace coil if burnt or open
Measure voltage input to backlight IC
If no input, trace from power IC or LDO
Reflow or replace backlight IC
Test continuity from IC to LCD connector
Jumper broken line if continuity fails
Clean board area for corrosion or water damage
Reattach LCD and power battery
Power on phone and check backlight
Adjust brightness in settings
Check light at different angles
Reassemble phone after success
Final test for display and light stability
Done, LCD light problem is successfully repaired
📢 Hashtags
#InfinixHot8X650
#LCDLightProblem
#BacklightFix
#NoDisplayLight
#MobileRepair
#HardwareSolution
#DisplayRepair
#ScreenIssueFix
#InfinixRepair
#PhoneBacklight