First, swipe down from the right-hand side of the iPhone screen to view the Control Center and turn off the Wi-Fi. Then, launch the Phone app and dial 3001#12345#. Touchscreen & Display Test Application gives you to test phone. Application Shows Device model , Storage & Ram. - Display Test gives you different color to check any others color dots appears on the screen. - test battery charging or plug is working or not. - check Barometer, Gyroscope, Accelerometer, Magnetometer Sensors working perfectly or not.
If you have an iPhone X or later, or an iPad with Face ID, and can't reply to a message from the Lock Screen, go to Settings > Face ID & Passcode, and turn on Reply with Message. If you have an iPhone SE (2nd and 3rd generation), iPhone 8 or earlier, or an iPad, go to Settings > Touch ID & Passcode > Allow Access When Locked, and turn on Reply
The screen will run through blue, red, black, and green during the LCD display test. If you observe any pixels on the screen, you know your display has a problem. All LCD color tests, except for black, can be exited by pressing the back button. Push the phone’s power button to exit the black screen test. ‍ Touch-screen test: *#*#2664#*#* This simple yet powerful online test helps you to quickly test your led TV for defects. Check for dead pixels, light bleeding, vertical banding, screen uniformity and more. Works with all smart TVs, desktops, laptops, mobiles and tablets. Just use your browser and go to testmyscreen.com. Select a test and then click or touch anywhere on the
Pound codes and star codes are numbers you can call from your Verizon mobile phone to help manage your Verizon wireless account. Code to call: Use when you need to: #BAL (#225) Check your balance. #DATA (#3282) Check your data usage. #MIN (#646) Check your minutes.
Let's get access to secret information about APPLE iPhone 11 Pro Max. Click here and find out more information about secret codes. APPLE iPhone 11 Pro Max hidden features. You can use one of the following hidden features and tests just by typing in the following codes: *3001#12345#* and press the green phone icon - you will enter Field mode.

You can also use Portrait Mode with the front-facing camera on iPad Pro 11-inch (all generations) and iPad Pro 12.9-inch (3rd generation and later). To use Portrait mode, open the Camera app and swipe to Portrait mode. Move farther away from your subject if the app suggests it. When the Depth Effect box turns yellow, take the picture.

1. If you have not already, install QR Code Reader on your iPhone and start the QR Code Reader app. 2. Position the phone to scan the barcode with your phone's camera. When the scan is successful The app will run you through a series of checks to see if your iPhone screen is responding properly. You can test the multi-touch response along with pinch, rotation and zoom. A brightness test Mobile phone diagnostic codes provide information about the health and status of various components of the phone. The codes can indicate issues with the phone's battery, camera, touch screen, speaker, and more. Each code corresponds to a specific test or diagnostic function.
iPhone operator code. Enter *#76# To check if the connected line presentation is enabled or disabled. iPhone call forwarding USSD code. Enter *#21# All your call forwarding settings will be available with the help of this code. iPhone use of information secret code. Enter *3282# To get details on the use of information. iPhone missed calls code
If you've ever used your iPhone's hidden Field Test mode to view your signal strength in decibel-milliwatts, locate the tower you're connected to, or find out the radio frequency in use, you no longer have to dig through all of the confusing-looking data every time you need to check. Apple updated Field Test's interface in iOS 15, and one improvement gives you more control of the Dashboard.
6 days ago · Some examples of iPhone secret codes include *#06# (displays the phone’s IMEI number), 3001#12345# (displays the phone’s field test mode), and *#31# (disables caller ID for outgoing calls). dZ3A.
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