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Touch Screen My Iphone touch screen has stopped working and I am unable to calibrate touch screen. Its working in top ( when close the phone ) but i can't answer the phone when its ringing also i cant open it Please i need you help Kind regards Ali AL Shabibi

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Posted on Jul 16, 2008

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We're is the LCD located in my phone


One of the iPhone's greatest features is its highly intuitive touch screen.
Unlike other electronic device touch screens, your iPhone doesn't operate using the blockage of light to decipher which keys and commands you're pressing.
This makes it a viable choice for cell phone users who may not be able to complete other types of commands.
While you cannot alter the sensitivity of your iPhone, you can toggle certain features that make your phone easier to use.
How It Works

The key to understanding the sensitivity level of your iPhone's touch screen is first understanding how the touch screen actually works.
Instead of detecting light blockages or heat to interpret your finger's movements, the iPhone actually has a grid that lies underneath the surface of the touch screen.
When your finger touches the screen, electrical impulses detect the area on the grid that you're touching to interpret the letter, command or motion you're making to issue the correct response.
Screen Sensitivity
While previous models of the iPhone did offer the ability to change the screen sensitivity and the speed by which your phone responds to commands, the iPhones 4 and 4S no longer offer the option.
Instead, the touch sensitivity on newer phones is automatically calibrated for the fastest speeds, which means your phone responds quickly to your touch.
If this frustrates you and results in commands and calls you didn't mean to make, locking the screen by pressing the button on the top right-hand rim of the phone helps stop unwanted commands.
Assistive Touch
Update iPhones running on iOS 5 with an option known as "AssistiveTouch," which allows users who may not have complete control over their bodies and motions to use the iPhone.
This program allows you to change the speed at which the phone responds to your touch.
By tapping the "General" icon, then touching "Accessibility" and "AssistiveTouch," you'll enter the assistive touch menu.
When you turn on the option, an overlay appears on the screen that allows you to give commands by touch, rather than by shaking, swiping or pinching the screen.

When setting up AssistiveTouch, you'll have the opportunity to select your command tracking speed, which deals with how sensitive your iPhone is to your various gestures and custom commands.
Case Issues
Your touch screen isn't the only place where your phone is sensitive to movements.
Your iPhone has a feature called a proximity sensor.
The role of the proximity sensor is to sense the closeness of your face during a phone call. When the phone senses that your face is close to the phone, it locks your screen to prevent you from accidentally activating the touch screen with your cheek or ear.
This is handy, except when the proximity sensor is partially obscured by a case and is no longer sensitive to the position of your face.
The proximity sensor is found on the upper right-hand corner of your screen, so ensure that it remains uncovered to preserve its sensitivity.

http://www.gadgetvenue.com/how-the-iphone-touch-screen-works-02223447/


http://www.appleinsider.com/articles/11/07/11/inside_apples_ios_5_assistive_touch_allows_accessible_gesture_commands/

Jul 14, 2013 | Cell Phones

1 Answer

My iphone screen cant touch ?


Hello there,

There are two major reasons that could be causing the touch screen not to be responding. The first is if the phone fell and the sensor board got bad, and the best solution is to replace the sensor board. To replace the sensor board is quite sensitive so i will strongly advice you seek advice from a specialist that can assist you with that. But if you intend to fix it DIY way, then you can ask and i will direct you through the steps.

On the other, it might be the screen is weak and needs calibration. To calibrate the screen. I will advice you go through the user manual for the steps to calibrate the screen of your phone. If you cannot get any response from the screen, i will advice you replace the sensor board. Because calibration requires you to touch the screen and since it is not responding to touch, it will be pointless trying to calibrate.

Thank you for using fixya.
Caseytech

Sep 21, 2011 | Apple iPhone Smartphone

1 Answer

Calibration is working on my iphone but only on the middle of the screen. the calibration is not working. could you please tell me how to fix the calibration or touch sensor on the screen,


Normally, such of these strange issues in iPhone get resolved by resetting the iPhone (by pressing the Sleep/Wake Button and the Home Button both simultaneously after which iPhone restarts slowly with the apple logo on the screen). Please try.

Oct 11, 2010 | Apple iPhone Smartphone

2 Answers

Iphone touch screen is not working. Restored the phone from backup succesfully, but screen still doesn't work. Phone receives calls, etc., but can't unlock or answer calls because screen doesn't respond to...


Even though the iPhonemag-glass_10x10.gif is a device that is extremely convenient to have, it still can cause frustrations. Specifically, there may be times when the touch screen does not work properly.

There are various problems the iPhone touch screen could encounter. Although there are times when the screen does not work altogether, there are other situations when certain portions of the screen work and others don't. Of course, it is possible that the entire screen works, but is simply slow. Regardless of the exact problem, there are ways to troubleshoot the iPhone to diagnose the real problem.
  1. tep 1 Remove the wiping cloth that came in the small black envelope along with the iPhone. Wipe the smudges or dust off the screen with this cloth. It is best to wipe in a circular motion.
  2. Step 2 Do not put lotion on your hands and do not touch the screen if your hands are wet. Any kind of moisture can affect the way the touchscreen operates. Moisture sometimes slows the response time from the screen to the operating systemmag-glass_10x10.gif.
  3. Step 3 Check for a protective sheet on the screen. If there is some kind of a film or sheet on the touchscreen, the screen is likely not able to react to all of the sensitivities of the touch of a finger as it normally would.
  4. Step 4 If there is an application open and the touchscreen seems to not be working, simply close the application and retry it. A frozen application can usually be closed by pressing and holding on the circular button located just below the touchscreen.
  5. Step 5 Press and hold the home button as well as the reset button on the top of the phone to turn the iPhone off. A red slider will appear. Slide it to the right to turn the phone off. Press again on the "Reset" button on the top to turn the phone back on.
  6. Step 6 Completely reset the iPhone by holding the "Home" button and the "Reset" button for a full 10 seconds until the phone resets and the Apple logo appears on the phone.
    • If you are using the iPhone in cold weather and wearing gloves, the iPhone will not react to the gloves as it will to the touch of a finger.
    • If the touchscreen is dirty, do not run the iPhone under water. Doing this will likely ruin the phone, but even if it doesn't, it will possibly make the phone run slower.

Nov 15, 2009 | Apple iPhone Smartphone

1 Answer

What should i do if my iphone touch screen won't work, i try to slide it to unlock it but nothing is happening


Try calibrating the screen. If that doesn't work, open the iphone and reseat the touch-panel connector. If that doesn't work either, replace the screen.

Oct 28, 2009 | Apple iPhone Smartphone

2 Answers

Unable to unlock my phone


Your device might have a problem in the touch screen.

In iPhone 2G the touch panel and the LCD screen are one unit that cannot be separated.

You shoud try to replace the iPhone screen with a new one and the problem should be fixed.

Aug 28, 2009 | Apple iPhone Smartphone

1 Answer

IPhone touch screen freezes and stopped working


hold down the home and power button together, should reset the iPhone and stop this happening. (you will not lose any data)

Aug 04, 2009 | Apple iPhone Smartphone

1 Answer

Iphone touch-screen


sir whats ur model\????

May 28, 2008 | Apple iPhone Smartphone

3 Answers

Touch screen calibration


Touch screen not working for sony ericsson P990i Mobile phone

When I hit the center some part above gets highlighted and selected and the botton part where the taskmanager and battery icons are present does not respond to my taps ... what could be the problem,,, kindly help me solve the issue.

Praveen

Aug 24, 2007 | Sony Ericsson P990i Cellular Phone

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