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iPhone 13 Pro Max can’t be turned on.
Machine model: iPhone 13 Pro Max
Fault phenomenon: The customer described that the mobile phone suddenly went black when using it, and gave it to the charger.mobile Charging, the phone is still black and not turned on.
iPhone 13 Pro Max can’t be turned on Figure 1.
Maintenance process: After receiving the customer’s mobile phone, plug in the charger without charging current, disassemble the mobile phone, and repair the power cord of the machine. The current is directly 5A short, and the back of the mobile phone is hot.
iPhone 13 Pro Max can’t be turned on figure 2.
It was found that the lower board was hot. The main board was layered, and the lower board was powered on separately. The infrared temperature detector directly found that the capacitor was bad, and it was not short after removing the bad capacitor.
iPhone 13 Pro Max can’t be turned on figure 3.
iPhone 13 Pro Max can’t be turned on figure 4.
Re-attach the motherboard, start the test, the mobile phone can be started, the fault is perfectly repaired, and the maintenance is over.
iPhone 13 Pro Max can’t be turned on figure 5.
