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I've been using a phone (Huawei TIT-U02) and the power button got broken inside causing it to turn on and off several days, I've taken out the switch which controls the power button and volume button, so every time I would drain to 0% I would put the switch in and take it out again just to turn it on, now I've lost the switch since misplacements happened, before it got shutdown I've enabled usb debugging, is there any way for me to turn my phone back on again?

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Just to clarify. Did you remove the button(plastic part you press) or the PCB with the 3 micro-switches?

 

If you removed the plastic button only you can probably press the micro-switch with a blunt toothpick or something similar. Don't poke it with anything sharp like a needle.

The switch dome should be in the middle of the hole.

 

If you lost the PCB try buying new one, should be a couple of bucks from china. Shipping will take a while tough.

 

This is probably a bad idea, you may kill your phone completely:

If you really need to turn it on NOW and you have taken out the switch pcb, you could try shorting switch pins on the main board. Terrible idea unless you have nothing to lose.

 

Switch PCB should look like this, for reference only:

image.png.94581612e6baf7b202a61f746779ea4c.png

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