iPhone 7 screen display abnormal repair

Machine model: iPhone 7

Fault phenomenon: the screen display of the mobile phone is abnormal, enter the system screen after startup to show that the wave is moving

Maintenance process: dismantle the machine and find the following figure:

iPhone 7 screen display abnormal repair Figure 1.

The integrated Inductor M2800 has been modified, and it is suspected that insufficient voltage boost caused the display wave fault. This integrated Inductor is responsible for boosting backlight, charging, vibration and sound.

iPhone 7 screen display abnormal repair Figure 2.

Dismantle the last modified integrated Inductor, and replace it with a new integrated Inductor M2800. After the boot test, the screen display is normal, and the maintenance is finished.