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Solution: iPad mini2 No Backlight and No Display

We are going to repair a iPad mini 2 today, the main problem is that the display and backlight not working now. How to repair the problem with the best solution, let's check in the article.

Open the iPad Mini 2 to observe, we can see that the lower half of the motherboard is water damaged. Check the motherboard under the magnifying glass carefully. The power supply and the display interface are corroded badly.

First we deal with the power part, and then carefully deal with the display interface, because this iPad is the display and backlight problem, when finished processing, one of the resistors fell down, check the schematic diagram on WUXINJI dongle, we found it's the light IO data interface, this resistance is 1 ohm.

 

The ground resistance value was measured by Fluke digital multimeter at the display interface after the short connection with jumper wire. It was found that there were four places where the resistance value of the pin have no resistance value.

Short connect one by one, it has display but no backlight, so we concentrate on the high voltage side  at this time, we found that the backlight positive pole and the interface are corrosive under the microscope,  so we slowly scrape with a knife, and then weld with 0.01mm Jumper Wire, to prevent loose weld when install the display screen.


Now we install the iPad mini2 to test, the display and backlight problem is solved now.

If you think the article is useful, you can get more information from www.vipfixphone.com

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