The easiest way to test the screen, check the iPhone screen

The screen is one of the most important parts of an iPhone. Testing the screen of a smartphone before buying is the first thing you should do, whether new or old.

Even so, unboxing smartphones are still less risky than buying second-hand, so you need to be knowledgeable before deciding to buy a used iPhone. Here are some screen test methods, the easiest way to check iPhone screen that you can do.

iPhone touch test

This is the first test that any user must take, in order to iPhone touch test you just need to hold an icon on the iPhone screen (from iOS 12 and below) or press and hold the icon and select Reorder apps (iOS 13).

Wait for that icon to appear an X in the corner, hold them and move around the screen. If you see the icon slipping out of your hand at a certain point on the screen, that point may be dead.

If you check more closely you can open the app Note up, select the pen icon, and draw a line over the point you suspect is touch dead. If you see a broken line at the other dead point, that place is probably paralyzed.

Another way you can test the touch is by shutting down and restarting, when the apple logo is white and around is black, look to see if there are any points showing other colors such as blue, red, purple yellow. no… If yes, then that place is dead touch, this error usually occurs when the screen is dropped, in water, is pressed on, replaced with a poor quality screen…

In addition, there is a touch disorder error, this error is similar to paralysis but instead of not working, the touch screen responds but does not match the position on the screen. For example, if you touch the Weather app, your iPhone will open the Phone app.

iPhone screencast test

Every other error commonly found on iPhone is the coloration of the iPhone screen. The commonly seen shade can be yellowish, greenish or pinkish. If it’s only a very slight discolouration, that’s a difference between the panels and it’s not a fault. Or maybe the screen glue layer has not dried, causing the phenomenon of darkening.

To shadow test iPhone, you can take two iPhones, open the app Setting up and set the brightness to full. If there is a shadow, you will certainly see the difference between the two screens, but only very slightly. And if you see heavy color cast, then that screen has a problem.

Check iPhone light exposure

The light leak error on the iPhone is very few people notice, even if they don’t know there is this error on their screen, although this is a fairly common error. The reason that few people pay attention to this error is because the screen brightness level is not significant, so many people do not know that there is an error.

The cause of this error is the assembly of the LCD screen with a non-standard backlight. Causes the light of the backlight to leak to the outside at the edge of the phone screen, causing light leakage.

To test light leak error, please open a black photo, open the camera and cover it to take the fastest. Then increase the screen brightness to the fullest and look around the edges of the screen to see if there is any light. Usually this error only appears on iPhones that use LCD screens.

Quick test iPhone screen

There are many ways for you to quickly test the iPhone screen to see if this screen is “zin screen” or “batch screen”. Firstly, take out a zin iPhone and see the colors displayed between the two screens, which can be turned all the way up to make comparison easier. The screen will usually not be as bright as the zin screen, the color will not be as clear as the zin screen.

Or more simply you can check by dropping a few drops of water on the screen. If it is a zin screen, these water drops will gather at one point, and with a screen, the water will spread as shown below. Or stick a piece of tape on the screen, if it peels off easily and smoothly, it’s a zin screen. On the contrary, if it is difficult to peel off and still has adhesive tape on it, it is a batch screen.

Above are some ways to test iphone screen, check iphone screen easily and effectively. However, after performing these checks and still not feeling secure, you should choose reputable places and reasonable warranty to choose to buy iPhone.