iPhone XS power consumption fast repair

iPhone XS power consumption fast repair

Machine model: iPhone XS

Malfunction: mobile phone battery die more quickly.

Maintenance method:

Connected to an iPhone xs machine, the fault is described as mobile phone battery die more quickly. Directly disassemble the machine to see the current, and Connect the power supply finds that there is 300MA short-circuit current.

iPhone XS power consumption fast repair figure 1.

The observation machine is an Previously repaired machine, and the motherboard has traces of separate, so let’s directly look at Previously repaired 1101 to see what it is.

iPhone XS power consumption fast repair Figure 2.

As you can see, when my family was on the motherboard welding, it was careless, and it was pasted directly without the right position. First, the tin on the middle frame was treated, and after cleaning it, the failure remained the same. After observing under the microscope, the problem was found.

iPhone XS power consumption fast repair figure 3.

This Capacitor is black. Looking at the point, it is found that it is a filtered Capacitor of the main VCC PP_VDD_MAIN.

iPhone XS power consumption fast repair figure 4.

Take it off directly.

iPhone XS power consumption fast repair figure 5.

Connect the power supply again, the standby current has returned to normal.

iPhone XS power consumption fast repair Figure 6.

Reset the motherboard to welding and enter the system normally.

iPhone XS power consumption fast repair Figure 7.