The present situation is iPhone 6s cannot
be turned on after dropping. Does it make you crazy,
because it will make your daily work get into mess. Don't worry, let's see
what's going on your phone
Firstly, connect motherboard to DC powerand it shows no current. The motherboard has
no marks of short circuit. Short connect the power on pin and it shows high
current, which suggests that there is short circuit on some voltage of open
circuit.
Secondly, using the multimeter to measure the diode data of each power supply on the
motherboard and find the diode data of PP_CPU voltage is 0.002. Obviously it is
too small, as shown in picture .
Then, as many components are connected to
PP_CPU voltage, it will take a long time to exclude one by one. So we put rosin
on the surface of each component evenly. Short connect power on pin and find
the rosin on capacitor C2006 beside CPU melts fastest.
Finally, Remove capacitor C2006 directly
and measure the diode data of PP_CPU voltage.
Now the data becomes normal. After
connecting display screen, this iPhone
can be turned on normally, as shown in picture . The iPhone 6s can work
again and you will found that your mood back to pleasure and the life getting
better.
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