Mobile Phone Light LED Problem and Solution
Learn How to Fix Mobile Phone Light LED Issue.
This chapter explains Mobile Phone Light or LED Problem and Solution – How to Solve Light or LED Fault in any Mobile Cell Phone. These problem and solution apply to all brands and make of mobile phones (Feature Phone and Android Smartphone) including Nokia, Samsung, iPhone, China Mobile Phones, Motorola, HTC, Sony, Blackberry, Alcatel, Apple, AudioVox, Benefone, Danger, FIC, Hagenuk, Palm, Kyocera, LG, Panasonic, Huawei, ZTE, Spice, Lava, Sony Ericsson, Micromax etc.
What is LED in a Mobile Cell Phone?
LED in any mobile cell phone is an electronic component or part that generates light in the Mobile Phone. These are generally LED or Light Emitting Diode. There are 2 types of connection in the Light Section of a Mobile Phone: (i) Series Connection; and (ii) Parallel Connection.
Types of Mobile Phone Light LED Problem
- No Light al all.
- Light in only Keypad or Display.
- Some lights not working.
- Backlight Not Working
Mobile Phone Light LED Problem and Solution – How to Fix Light LED Not Working Fault in any Mobile Cell Phone
- Check Light Settings.
- If settings are OK then Resolder all LEDs.
- If the problem is not solved then change the display or the screen and check.
- If the problem is not solved the check all the LEDs using a multimeter. Keep the multimeter on Buzzer mode and Check LED. If LED is Good then it will Glow. If LED is Faulty then it will Not Glow.
- Change LED or Jumper if required.
- If the problem is not solved then Check Track of the Light Section of the PCB of the Mobile Phone and Jumper if Required.
- If the problem is not solved the Check the SMD Boosting Coil and Change if Required.
- If the problem is not solved the Heat or Change the Light IC.
- If the problem is still not solved the Heat, Reball (BGA) or Change the Power IC.
Notes:
In all Nokia Mobile Phones, there are 2 Types of Light IC:
- Ball-Type Light IC: Beside the Boosting Coil, There is a Small-Sized Ball-Type IC. When this IC is Desoldered, There are 8 Ball Underneath. This is the Light IC.
- Leg-Type Light IC: Beside the Boosting Coil, There is a Small-Sized, 4+4 = 8-Leg-Type IC. This is Light IC.
- Light IC = Back Light + Display Light
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Mobile Phone Light LED Problem and Solution FAQs
How can I fix my mobile phone LED light that keeps flashing on and off?
If your mobile phone LED light keeps flashing on and off, it could be due to a problem with the LED settings or a hardware issue. Try adjusting the LED settings in your phone's settings menu, and if that doesn't work, consider taking it to a professional for repair.
Why is my mobile phone LED light too dim?
If your mobile phone LED light is too dim, it could be due to a low battery, a setting that needs to be adjusted, or a problem with the LED itself. Try adjusting the LED settings in your phone's settings menu, and if that doesn't work, consider replacing the LED or taking it to a professional for repair.
Can I replace my mobile phone LED light?
Yes, it is possible to replace your mobile phone LED light. However, it is a delicate process that should only be attempted by a professional. Attempting to replace the LED yourself could result in further damage to your phone.
How can I prevent my mobile phone LED light from getting damaged?
To prevent your mobile phone LED light from getting damaged, avoid dropping your phone or exposing it to extreme temperatures. Also, be careful not to scratch the lens of the LED, as this can affect its performance. Finally, be sure to keep your phone in a protective case to minimize the risk of damage.
Related Posts:
- Mobile Phone Vibrator Problem and Solution
- Mobile Phone Ringer Problem and Solution
- How to Open and Disassemble a Mobile Cell Phone
- How to Clean Points and Connectors of Mobile Phone PCB
- How to Check Parts of a Mobile Phone for Fault
- How to Replace LCD Display Screen of a Mobile Cell Phone
- Parts Inside Apple iPhone 5 Mobile Phone
- SMD Surface Mount Electronic Components for SMT
- Mobile Phone Hardware Problems and Solutions
- Small Parts / Electronic Components of Mobile Phone and Their Function
- Mobile Phone Repairing Tools Supplier in India
- Parts of a Mobile Cell Phone and Their Function (Big Parts)
- How to Identify Parts & Components on PCB of Mobile Phone
Sir, my itel 2160 keypad backlight is not working, making it difficult to use at night. And if I make calls with my itel 2160 it will show caller number hidden (unknown caller), how do I resolved them. Thanks
RESET and Check. Maybe the Display LEDs have gone faulty.
Hello sir my phone itel p13 screen is not showing light on screen but the screen is displaying inside please help me
Itel p12 screen light problem from ice help me sir
Sir Nokia 6.1 plus ki double tone flashlight me one flash led sahi glow ho rahi h but 2nd flash led glow ho rahi h but heat kar rahi h or kuch der bad 2nd led kharab ho rahi h solutions sir
There could be half-short in the PCB.
My itel 1408 fell in water after dry it up the display lights light up when I insert the battery or charger with out powering on the phone so phone is off but lights light up
Don’t switch it ON. Get is Cleaned by IPA Solution.
Itel p33 plus backlight issues
Am a phone technician I have changed all the necessary requirements on light sections still light is not coming on
I got a new screen
I checked the track from the diode on light section on pcb to the light on lcd its is connected
I replaced the light ic, coil and diode and its reading fine but light is still off.
Pls what do i do??
Maybe some issue with the Power IC.
Sir how to fix power of in Gionee a1 Phone
Itel 1408 no backlight pls help ..screen is in good condition
LEDs need to be checked and replaced.
i dropped my redmi note 7 pro accidentally and it has crack on back screen and it bend ..i repaired it..he was saying light ic was also faulty i replace that also… i didnt use phone for 5-6 days.. after repaired…today i put it on charge…when i plugged out… it was switched off..i switched it on… n unlock my phone …it got hang with blue hazey lines and turned off..i did 3-4 times… after some time it had black screen with redmi written on it… now it is not even starting ..is help..i want that phone to be repaired…it was a gift and it is spl. to me
Dear sir /mam your phone PCB is damage the problem occurred frequently so my suggestion is replace new piece
This is my best advice because iam also face same situation
Sir water enter my maxfone and since then the led flashlight is always on even when power is off, what is the solution please??
There is shorting in the pcb. Please get it checked locally.
Hlo sir i want to know that i unfortunately put the screen pin from wrong way to test it as I ordered it from online and now it is damged so I again changed it and buyed new but it is not working what is the fault is it on mobile and how to fix. The screen is working on another mobile. Mobile xiaomi mi a1.
Could be problem with the Board.
Techno l8 ic display light
Dear sir …my infinix X555 back camera is shaking anytime am using it to capture picture and the camera will not be bright. Please sir , what can I do?
See if there is any Software Update.
Techno wx3 the screen is okay but no light, what’s the solution?
my fero vibe phone shows only a White blank screen while other things on it are still functioning what could be the issue
You need to Replace the Display.
hii super
My itel P 15 is on a low light level even after putting the brightness to the highest. What could be the problem. Plz help me.
Maybe some LED on the PCB has gone Faulty.
Good day sir my Gionee x1s after changed screen flash on front and back camera big working .
Maybe some connectors are lose.
my itel s12 isn’t turning on and i have tried charging and changing the battery
pls what could be the problem
The Phone is Dead Because of Shorting the PCB of the Phone. Get the PCB Checked.
Pls my tecno T528 button is not showing light and I just bought it two days ago,what could be the problem
Could be Problem with the LEDs.
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
Replace the LEDs. They are short and gone.
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
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.
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?
You have to check the PCB Diagram of that Model. I don’t have the diagram. Try to find online.
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..
Could be issue with the Camera Light LED. Replace it.
Pls I need help on itel 1556 lcd light jumper
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.
You need to change the damaged LEDs.
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!
NICE SIR
Dear sir ,
Mera mobile vivo y21l hai.
Island light section me diode JAL ,gaya hai .
Kaise thik kare
I am not sure if you will get this diode in the local market or not but you can surely get it in the Vivo Service Center.
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
Dear Eng :
Plis help me to repair tecno N6s lights by jumper
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?.
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.
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
You LCD is not properly replaced. Get it Fixed.
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.
I m getting many many unwanted ads. on my samsung j2.
And automaticaly opening google playstore.
In my Bq E1 model ledbacklght is not off please
Dear sir
I want full lcd light track way in oppo Neo -7
i have problem with itel 1508 screen light problem
I have gretel phone when it istarts been powered it only vibrat without powering pls sir help me out
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…
Looks like display is gone and needs to be replaced.
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.
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.
Sir ji mere pas micromax q106 Hai .uski power key chorte hi wo off ho jata hai. Plz, help me sir
You need to check the power key. Maybe it is faulty and needs to be replaced.
Samsung 3322 is auto vibrate only
Pls solution
Factory reset to solve the problem.
Samsung c3322 is battery inserted then mobile is full time vibrating
Pls solution
Factory reset to solve the problem.
Very very thanks
i want latest post of mobile servicing
Dear
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 !
Thanks!
Nice
thanks for all those updates
Hallo
Could assist me where can I buy a chinamobile phone diagrm/schematic
Display light ic not showing ground point