What is the code to check touch screen?

Touch-screen test: *#*#2664#*#*
Input *#*#2664#*#* into the dialer to test the touch screen's performance. This test is useful if you've noticed your touch isn't functioning as it should.
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What does the Code * * 4636 * * do?

*#*#4636#*#* Displays information about the phone, battery, and various network statistics.
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What does *# 9090 do?

*#9090# – Diagnostic configuration. *2767*3855# – Format device to factory state (will delete everything on phone) *#*#232339#*#* – Wireless LAN tests.
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What does *# 0 *# do?

Accessing the Secret Diagnostic Menu

To get the ball rolling, simply open your Samsung's phone app. From there, enter *#0*# using the dial pad, and the phone will immediately go into its secret diagnostic mode. Note that the process is automatic, so there's no need to tap on the green call button to enter the command.
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How do I fix my touch screen problem?

Step 1: Check your phone's screen
  1. Make sure that your screen isn't cracked, chipped, or damaged.
  2. If you have a case or screen protector, take it off.
  3. If you're wearing gloves, take them off.
  4. If you've put any stickers over the screen or sensors, peel them off.
  5. Make sure that your screen is clean.
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Secret Code To Test Samsung Touch Screen



What are some common causes of touchscreen issues?

Common Causes of Touchscreen Lag (And How to Prevent It)
  • Dirty Screen. A dirty screen can cause touchscreen lag, though it usually only occurs with capacitive touchscreen devices. ...
  • Damaged Resistive Layers. If one or more layers of a resistive touchscreen device are damaged, it may cause lag. ...
  • Too Many Apps Running.
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How do I get my phone screen back to normal?

With a custom launcher installed, tap Settings > Select Default Launcher or similar to reset back to your original home screen. Remove apps and widgets by holding your finger to them and tapping Uninstall or Remove.
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What is * * 4636 * * Android secret codes?

Android code: *#*#4636#*#*

This code will open up a menu that shows information about your phone's data usages. Here's how you can retrieve deleted text messages on your iPhone.
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What happens if you dial *# 31?

Hide Your Phone From Caller ID: #31#

I could only get this to work on Android. But entering this code prompted a pop-up stating that my Caller ID had been disabled. In order to re-instate Caller ID, enter *31# .
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What does *# 61 *# do?

What does *# 61 do on Android? *#61#: This code shows you how long it takes until your phone calls are forwarded to the message center. #31#: A code that disables your caller ID. *31#: This code reinstates your caller ID.
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What is *# 3282 * 727336 *?

*#3282*727336*# (View System and Storage Information)

By running this USSD code, you can get accurate information about the internal Android system on the device, and the available storage. Any data consumption on the device will also be shown on your screen when you use this code.
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What is * 74 on your phone?

Speed Dialing

Establish a short list of up to eight numbers, or a longer list of up to 30 numbers. To program your Speed Calling 8 list, dial *74. Listen for the dialtone, then dial the one-digit number (2 through 9) you would like to use to dial a frequently called number.
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What does * 78 do on your phone?

When you do not want to be disturbed by incoming calls, you can activate the “Do Not Disturb” feature. All calls will be directed to Voice Mail and you will not hear your phone ring. To activate Do Not Disturb, dial *78.
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What happens when you dial * 3370?

What does * 3370 do on Android? By pressing *3370# or #3370#, you'll activate your phone's “reserve battery power”. Battery life will increase by 50%. The reserve will automatically charge up the next time you change your device.
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What does *# 06 do?

The code *#06# is used to check a phone's IMEI (International Mobile Equipment Identity) number. The IMEI is a unique 15-digit code assigned to each mobile phone that can be used to identify a specific device. The code *#06# is a universal code that can be used on most phones to display the IMEI number.
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What is *# 67?

*67 - Caller ID Block: Hides your phone number on Caller ID systems.
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What does * 57 do on a cell phone?

Malicious caller identification, introduced in 1992 as Call Trace, is activated by Vertical service code Star codes *57, and is an upcharge fee subscription service offered by telephone company providers which, when dialed immediately after a malicious call, records meta-data for police follow-up.
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What happens when you dial * 004 * number?

Dial *004*, followed by the 10-digit number you want your calls forwarded to, followed by *, followed by the number of seconds, followed by #. The time options are 10, 20, or 30 seconds. A message indicates that Call Forward Variable is activated. Deactivate Call Forward Variable Dial #004#.
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What is * 73 on a cell phone?

Call forwarding is disabled by dialing *73. This feature requires a subscription from the telephone company. Also available in some areas is Remote Access to call forwarding, which permit the control over call forwarding from telephones other than the subscriber's telephone.
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What does * 3370 do on Android?

By pressing *3370# or #3370#, you'll activate your phone's “reserve battery power”. Battery life will increase by 50%. The reserve will automatically charge up the next time you change your device.
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What does this * 31 *# do on Android phone?

To block your mobile phone number on a per-call basis, dial #31# before each phone number you call. To permanently block your number use your Call Settings menu.
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What code is *# 21 in Android?

Code * # 21 # ~ To know whether message or call has been diverted or not. Code * # * # 4636 # * # * ~ To know Wifi connection test, Phone battery. Code * ## 62 # ~ To know whether phone redirects to any number. Security of Android Smartphone codes : Code ## 002 # ~ Deactivates all forwarding.
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How do I know if my touch screen is damaged?

- Black spots, discolored areas, or blurred sections on the screen. - A screen that stays completely black. - Lines or patterns that aren't simple cracks in the glass. - Lack of touch sensitivity.
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How do I test my touch screen on Android?

Open the app and tap Device diagnosis. Choose Troubleshoot to test the touch-screen display, battery, audio, camera, connectivity, and more. Select Hardware test to run diagnostics on the display, backlight, touch screen, multi-touch capability, flash, front and rear camera, and the proximity sensor.
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