Mobile Phone Light LED Problem and Solution – How to Solve Light or LED Fault in any Mobile Cell Phone

Santosh Das

Santosh Das

Santosh is an Electronics Geek, Blogger, Young Entrepreneur and Founder of this Mobile Phone Repairing Website. Santosh possesses vast experience in the field of electronics, telecommunication, Soldering, SMT, ESD Safety, PCBA Tools & Equipment. Keep visiting for daily dose of Tips and Tutorials.

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43 Responses

  1. Avatar Daniel says:

    good morning sir,I have a phone Ginoee m3 mini it fail inside water and refuse to on so I wash the motherboard and dry it with sun then it on but the led is not displaying light but i can see the writtinge on the screen but is dark no light please help me how can I fix it

  2. Avatar Akhilesh says:

    I have moto e 4 plus it has an issue . My baby dropped phone in water now my phone display is not showing but every thing working like ringing. Vabratio. Touch vibration and i contracted with phone tech. and he said phone light IC problem so phone light IC problem can be resolve or not

    • Santosh Das Santosh Das says:

      Check the Board Properly with IPA or Alcohol. Apply some Good Quality Liquid Flux on the Board and Give some Hot Air from some Distance. The LEDs that provide Light to the Display may have shorted. They can be easily Replaced.

  3. Avatar abiodun says:

    pls sir hw can i make a jumper on tecno l9 plus light ic if d boosting coil has a little crack and it not showing?

  4. Avatar ankur says:

    hello sir, i have a lenovo vibe p1m phone and its camera flash light is suddenly got dim .
    what could be the problem, please help..

  5. Avatar michaels says:

    Pls I need help on itel 1556 lcd light jumper

  6. Avatar George says:

    Please my fero pace home , exit, and option led light so I can’t enjoy my adroid phone in the night because i don’t see the option pads down my screen, could it be settings.

  7. That’s exactly what I am looking for. Thanks for this post. I love your blog and all the ideas you shared about car tips. Keep it up!

  8. Avatar PawanRai says:


  9. Avatar anil says:

    Dear sir ,
    Mera mobile vivo y21l hai.
    Island light section me diode JAL ,gaya hai .
    Kaise thik kare

  10. Avatar peter says:

    hello, I have an infinix X557 the lcd backlight isn’t coming up but the screen display is ok. I would appreciate any diagram towards this

  11. Avatar Bii says:

    Dear Eng :
    Plis help me to repair tecno N6s lights by jumper

  12. Avatar John says:

    Dear sir,
    Good evening i want to know where the backlight settings that will make the key pad light to show on my Techno phone?.

  13. Avatar J says:

    Hi Santosh, nice article.
    I have a Redmi 3s where the backlight is not working. I can see the display if I shine a flashlight directly on it.

    I tried to follow a youtube video and found that after the diode, the voltage is only 4V – instead of probably 30V after the boost coil.

    Does this mean the boost coil is spoiled? – very hard to find what part to buy.

  14. Avatar bapi roy says:

    Sir amar nam holo Bapi.
    amar ekta mobile mobiler nam holo lava Iris 402 lcd pblm .
    to amar lcd nasto haye jabar pare ami sei lcd take change kare diye jakhan amar hanset take on karchi takhan amar mobiler handset er white haye jachhe to ekhn ami ki karbo to setake ki vabe thik karbo
    plz sir help me

  15. Avatar santu Lai says:

    Sir , mera nam Santu … Sir , mai koye v company ka mobile me track line ka pahachan nahi kar parahun(key pad or Android) … Plz solution di jiye.

  16. Avatar Rakesh Karmkar says:

    I m getting many many unwanted ads. on my samsung j2.
    And automaticaly opening google playstore.

  17. Avatar Ritesh rajput says:

    In my Bq E1 model ledbacklght is not off please

  18. Avatar Anmol Raaz says:

    Dear sir
    I want full lcd light track way in oppo Neo -7

  19. Avatar kalee says:

    i have problem with itel 1508 screen light problem

  20. Avatar Henry Ebri says:

    I have gretel phone when it istarts been powered it only vibrat without powering pls sir help me out

  21. Avatar Kanhaiya says:

    Dear sir

    Microsoft mobile rm 1036
    It’s showing white display there are some broken also in board
    Can you pls help me with right solution…..

    Thank you
    In advance…

  22. Avatar Suraj says:

    Sir,my name is Suraj. I have a mi mobile. One day it fall in water. So it was off. I took it to the service center but they told me change all motherboard. Then I gave it to my friend. He told me that only display light does not work. Because the IC is damaged. He returned my mobile. So please sir tell me what I do,because the center did not give proper solution.

    • Santosh Das Santosh Das says:

      Disassemble the Phone and clean the motherboard, all the connector and all soldering points with IPA using a Brush. You can buy IPA Solution and any Shop where they sell mobile phone parts. Clean properly everything and allow the IPA to Evaporate and dry up. Assemble back and check. Give a boost to the battery using a battery booster if required. I think it will start working.

  23. Avatar Gurdeep singh says:

    Sir ji mere pas micromax q106 Hai .uski power key chorte hi wo off ho jata hai. Plz, help me sir

  24. Avatar navnath bakle says:

    Samsung 3322 is auto vibrate only
    Pls solution

  25. Avatar navnath says:

    Samsung c3322 is battery inserted then mobile is full time vibrating
    Pls solution

  26. Avatar pushpraj says:

    Very very thanks

  27. Avatar pinkal das says:

    i want latest post of mobile servicing

  28. Avatar Lucky says:

    I have a micromax tab p650. The battery current backflows to charger when connected. The charger LED glows even thpugh the charger supply is off. Please advice a remedy. Also advice on what if the problem is not attended !

  29. Avatar Najib kiggundu says:

    thanks for all those updates

  30. Avatar luhiga says:


    Could assist me where can I buy a chinamobile phone diagrm/schematic

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