dell inspiron 15 5567 - Start only when I push power for a longer time

Hello, problem as in the subject, dell inspiron 15 5567 with i5 7-generation, rozbierałem to clean, detached batteries and battery from bios, from this moment the laptop does not respond to the power button, means reacts go it turn on but only holding pressed power pair second, the same with switching off, I searched the bios and I do not see any option from the type of operation of the power button.

And one more thing, all the time you hear how the disk works, even after firing only the bios, constantly sighs as "moves", the first I meet with something like that ...

Check again if everything is well connected.
Measure, you can do disc diagnostics?

Plate diagnostics, software from della? Do you measure voltages yourself?

I checked the connections twice, unless some ribbon was damaged, I'm sure it's a problem with setups, and here the possibility of damage?

And if such a brand new delle can have such a security system, that if something is wrong with the hard disk, then normally it will not fire? Because I connected a different drive and normally started, just press the power button, and do not stay long, is it possible?

I am currently researching a laptop drive.