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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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The maintenance is from simple to complex step by step

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No trigger maintenance process 1,

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replace the switch cable to eliminate the distribution problem

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Because in the actual maintenance, many maintenance is the whole machine

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If the switch cable is broken during the disassembly process,

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when we press the power button, it may cause no trigger

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

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

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So let's do it

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In the maintenance, we first disassemble the machine and connect the adjustable power cord

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Then remove the switch cable from it, and we use tweezers to trigger the boot

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If the current does not change, it indicates that 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 cable damage causes no trigger

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Ok, that's it for this lesson