Is your Nokia 105 (2019) showing no light, dim light, or display visible only in torch light? This video explains the complete backlight solution, including LED ways, light filter, diode, coil, PMIC supply, and jumper tricks. Perfect for technicians who repair keypad phones daily. Fix all backlight faults: no light, half light, dead light IC, broken tracks, LED short. ✅ 30 Most Searching Titles Nokia 105 2019 LCD light problem solution Nokia 105 no light display solution Nokia 105 2019 backlight ways Nokia 105 dim light issue fix Nokia 105 2019 display light not working Nokia 105 keypad phone light problem Nokia 105 2019 backlight jumper Nokia 105 display dark screen solution Nokia 105 backlight not turning on Nokia 105 2019 LED light track ways Nokia 105 white display no light fix Nokia 105 2019 LCD IC light ways Nokia 105 LCD backlight line broken Nokia 105 display visible only in sunlight Nokia 105 2019 PMIC light supply fix Nokia 105 2019 backlight diode replacement Nokia 105 LCD light coil solution Nokia 105 2019 LED short fix Nokia 105 display light components Nokia 105 keypad phone display light repair Nokia 105 2019 screen light ways Nokia 105 2019 no backlight repair Nokia 105 2019 light filter problem Nokia 105 low brightness issue Nokia 105 2019 light section diagram Nokia 105 light jumper solution Nokia 105 2019 LCD strip light ways Nokia 105 2019 backlight repair guide Nokia 105 2019 screen backlight fix Nokia 105 2019 light issue hardware solution ✅ 30 Step-by-Step Repair Guide Remove battery and open the keypad phone. Disconnect LCD and inspect connector. Clean connector with IPA thoroughly. Check if LCD shows display in torch light. If display appears, problem is only backlight. Inspect backlight LED pins on LCD. Check continuity of LCD light tracks. Check backlight positive line (LED+). Check backlight negative line (LED–). Test backlight diode near connector. Replace diode if short/open. Test backlight coil for continuity. Replace coil if broken. Check backlight filter for leakage. Replace filter if burned. Check for rust/green corrosion near LED ways. Jumper LED+ line directly from PMIC light output. Jumper LED– line to ground properly. Test with new LCD if backlight still missing. Reflow LCD connector lightly. Inspect PMIC light section for dry joints. Test backlight supply voltage using multimeter. Normal voltage should be between 3V–5V. If missing, reflow PMIC. Replace PMIC only if needed. Clean board again fully. Reassemble temporarily and test light. If light works, assemble completely. Do final testing in low light room. Deliver phone after ensuring brightness is stable. ✅ Hashtags #Nokia105 #Nokia1052019 #Nokia105LightProblem #Nokia105Backlight #DisplayLightFix #KeypadPhoneRepair #MobileRepair #LCDLightWays #BacklightSolution #MobileRepairingLab