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iPhone trigger circuit

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In this video we're going to learn about the no trigger repair process

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In the maintenance,

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we are going to repair from the simple to the complex step by step

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No trigger maintenance process 1,

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replace the switch line, eliminate the problem of external distribution

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Because we are in the actual maintenance,

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most of the time is the maintenance of the whole machine

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If the switch line is broken during the disassembly process

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When we press the on button,

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it might cause it no trigger

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At this time, we can use a tweezer to stub the switch pin

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and eliminate the fault caused by the damage of the switch pin

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So let me show you how it works

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In actual maintenance, we can disassemble the machine,

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connect the adjustable power cord and remove the switch line

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Then, we use a tweezer to trigger the boot

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If the current does not change after we use a tweezer to short switch,

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it means the mainboard has a problem

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If there is a change in the current,

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it indicates that the switch line damage causes the no trigger fault

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Ok, that's it for this lesson