Repair iPhone 12 Pro Max Backlight Ways | Display Light Problems ,Black Screen Issue
In this article, we’ll offer solutions for the App,e iPhone 12 Pro Max Baclight and display problems. If you are having issues with your phone’s display, such as poor light or a non-responsive screen, it could mean that your iPhone 12 Pro Max LCD display is damaged. In some cases, the problem can be solved by changing out the broken LCD for a working one. To effectively solve the issue on your iPhone 12 Pro Max, however, you might need to use extra repair options if your screen is flickering, dim, or completely without backlight.
After a screen replacement, iPhone owners may experience a problem where the backlight of their smartphone begins to fail or stops functioning altogether. It can be disappointing to have this issue when the iPhone was working well before the replacement. It is crucial to take into account both software and hardware as potential solutions to this problem.
Sometimes, the issue could be caused by a software malfunction. It can be due to a software bug or a conflict between the freshly installed screen and the iPhone’s operating system. Backlight issues that are software-related may be fixed by performing troubleshooting procedures like restarting the device, upgrading the software, or resetting the device’s settings.
On the other hand, the issue could stem from hardware problems. During the screen replacement process, it is possible that the backlight component was not properly installed or connected. In such cases, rechecking the connections and ensuring that all components are securely in place can help restore the backlight functionality. If necessary, seeking professional assistance from an authorized service provider or an experienced technician is advisable for hardware-related issues.
By considering both software and hardware possibilities, users can take appropriate steps to fix the iPhone backlight problem and ensure their device functions properly.
Problems
- Display light not working.
- Display light is dim.
- Sometimes display light works and sometimes it does not.
Reasons of Problems
- Phone might be water damaged.
- Dry soldering of display connector pins.
- Diode might be faulty.
- iPhone 12 Pro Max LCD screen might be faulty.
iPhone 12 Pro Max Backlight Ways – Repair Display Light Not Working problem
The first step in resolving the iPhone 12 Pro Max dark screen backlight issue is to replace the display screen module. This will help evaluate whether the LCD’s backlight LEDs are still functional or have been damaged.
To further investigate the problem, use a multimeter to test the LEDs, taking care not to harm the LCD flex connector. If the freshly installed LCD still displays the same issue and the LED light does not illuminate, consult the remedies given and find the required components on the PCB board.
Repairing LCD backlight problems on the iPhone 12 Pro Max:
- Test the current on the display light pins to check if there are any broken or missing connections.
- If there are broken connections, you can create a direct jumper using the image diagram provided.
- Start the display connector repair process by checking the motherboard connector, followed by the display panel strip connector, and finally, the LED connector located at the back of the panel.
- If the jumper and LED lights are working properly, but the LED current is missing, the issue may lie in the lights controller section.
- There could be a separate section or a built-in power chip responsible for controlling the LED lights. In the separate section of the LED lights controller, you may find a lights current filter chip or transistor for auto switching.
- The auto switch feature helps conserve battery life as the display lights can drain the battery quickly. To learn more about display lights auto-switching, refer to relevant resources. Now, let’s proceed with the mobile repairing steps.
By following these steps, you can effectively troubleshoot and repair LCD backlight problems on your iPhone 12 Pro Max.
