Second: Query the system: We can open the iPad's 【Settings】→【General】→【About this machine】, you can see the specific iPad model and serial number. We can check the serial number to confirm the specific information of the iPad.
* iPad touch screen quality inspection comparison
First, tool detection
1. Connect to the Internet and enter the URL http://display.bbgxzx.com/ in the ipad's built-in safari browser
2. After entering the webpage, swipe the screen directly down to test each pure color map in turn.
Highlights: Pure black screen has white dots or bright lines
Dead pixels: all white screen has dark spots
3. Yin and Yang screen: The full screen is white and yellowish, and there is bright light on the edge of the screen in dim light.
4. Rotate the ipad to test no area of the screen to ensure that no area is missed.
Second, product comparison
Most products on the market
1. The ribbon cable is pasted randomly, which will easily cause the customer to install the ribbon cable on the iPad case. It is easy to cause failures such as failure to install or touch parts without touching.
2. The quality inspection personnel have weak technical ability, and the quality personnel have no installation and maintenance experience
3. No process for testing
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