how to fix a black screen on a phone

Mobile Phone Display or Touch Screen Not Working? – Learn How to Fix.

Mobile Phone Display Not Working or Touch Screen Not Working or Screen is Black / Blank but Phone is ON – No Problem. Learn How to Fix the Problem. These problem and solution apply to all brands and make of mobile phones 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.

Mobile Phone Display Not Working

What is Display in a Feature Mobile Cell Phone or Android Smartphone or iPhone?
Types of Faults or Problems if Mobile Phone Display Not Working
Tools Needed to Replace LCD Display Screen
How to fix Black or Blank Display of Feature Phone
- Video: How to Desolder and Remove Display of Mobile Phone
- Video: How to Solder and Replace Display of Mobile Phone
- Note:
How to Fix if Display of Android Mobile Phone is Not Working
- NOTE:

What is Display in a Feature Mobile Cell Phone or Android Smartphone or iPhone?

Display is a Card Level Part of a mobile phone that helps see all Programs, Apps and other Data and Multimedia in a mobile phone. Display is available in different sizes. Display is controlled by the CPU. In some Mobile Phones there is an Interface IC called Display IC between Display and CPU.

Old Feature Phone used to have Small Display with No Touch Screen. Later they started to come with Touch Screen and Keypad.

Modern Android Smartphone and Apple iPhone either have Separate Display and Touch Screen Combined Together by Loca Glue or they Come as a Combo Set where the Main LCD Display and the Touch Screen Cannot be Separated by a LCD Screen Separator Machine.

Mobile Phone Display and Touch Screen

Here I will Explain How to Fix if Display of a Feature Phone is Now Working and How to Fix if Touch Screen or Display of Android Smartphone or iPhone is Not Working.

Types of Faults or Problems if Mobile Phone Display Not Working

Mobile Phone Display Not Working (Phone Dead)
Nothing shows on the Display or Display is Black / Blank
Only Half Display Working
Display Broken or Crack
Sometimes Display Works and Sometimes it doesn't work
There is only light in the Display and nothing else
Touch Screen Not Working
Phone is ON but the Screen is Black
You Dropped Your Phone and the Screen is Black
Part of the Mobile Phone Screen doesn't work

Tools Needed to Replace LCD Display Screen

You will need following Mobile Phone Repairing Tools and Equipments to Replace LCD Display Screen of Mobile Phone:

Liquid Flux.
Soldering Iron
Desoldering Wire.
Solder wire.
Tweezers.
Precision screwdriver.
Mobile Phone Opener.

How to fix Black or Blank Display of Feature Phone

Clean Display Tips and Display Connector.
Resold the Display Connector.
Replace the Display.
Check Display Track.
Resold or Change the Display IC.
Heat, Reball or Change the CPU.

Video: How to Desolder and Remove Display of Mobile Phone

Video: How to Solder and Replace Display of Mobile Phone

Note:

In some slider mobile phone sets, if there is Display problem then it is mainly because of faulty Display Track. Change the track to solve the problem.
If the Display is upside down OR only half Display OR the Display is broken then change the Display.
If there is white Display and the display is changed but the problem is not solved then RELOAD SOFTWARE / Flash the Software.
In some mobile phones like Nokia 6600, N72 etc, when the Phone is Switched ON, the Nokia Logo appears and then the Display disappears. This is problem of BOOT IC. Change the BOOT IC to solve the problem.

How to Fix if Display of Android Mobile Phone is Not Working

If your Android Smartphone is ON but the Display is Black, then Most Probably you will have to Replace the Display. Follow these Steps:

Disassemble the Mobile Phone
Get to the PCB of the Mobile Phone
Using IPA Solution Clean the PCB and all the Small Parts. This will Remove any Moisture and Dirt.
Apply Flux all over the PCB and Give Heat Using a Hot Air Blower from some Distance. This will Fix any Dry Solder.
Now check if the Display is Working or Not.
If Working then Fine. 3 Cheers for You.
If Not, then Bad Luck for You. You have No Option but to Replace the Old Display with New One.

NOTE:

If Your Android Smartphone is ON and you can See the Display but the Touch Screen is Not Working then Read – Mobile Phone Touch Screen Not Working – How to Fix
If Your Apple iPhone Touch Screen is Not working the Read – iPhone Touchscreen Not Working – Problem and Solution

How to Replace LCD Display Screen of a Mobile Cell Phone
Mobile Cell Phone Screen Touch (PDA) Not Working Problem and Solution
Mobile Phone Problem and Solution – Auto off, Freezes, Hangs, Slow Processing
iPhone Touchscreen Not Working – Problem and Solution
Sections and Parts Inside a Mobile Cell Phone
Card Level Parts of a Mobile Phone
How to Identify Parts & Components on PCB of Mobile Phone
Mobile Phone Repairing Testing Methods
Mobile Phone Fault Finding for Mobile Cell Phone Repairing
Mobile Phone Repairing Tools Supplier in India
Parts of a Mobile Cell Phone and Their Function (Big Parts)
Small Parts / Electronic Components of Mobile Phone and Their Function
Mobile Phone Hardware Problems and Solutions