After personal testing, I found a simple method that can effectively solve the problem that the mobile phone cannot be turned on due to the failure of the power button.
Soil method: use your own or other people's saliva to smear on the power button, apply a little more, press the power button while smearing, try to let the saliva penetrate into the inside of the power button, after a while you try to press the power button, it is very likely You will find that the button is ready and ready to use, and then press and hold to turn it on!
Advantages: convenient, fast, and very effective. I have solved the boot problem in multiple tests on Huawei P10.
Disadvantages: It may cause the power button to be too sensitive suddenly, and there may be unknown side effects.