Dell 5537 ,problem with Wifi ? Going crazy !

Hello to all,

After so much time having this laptop i have a problem with it.

Last week i made some updates to windows 10 ,and from then the laptop stopped working the Wifi , i rolled back , and didn't work again.

So i made a clean install to windows 10 again ,nothing happened

I made clean install then to Windows 7 nothing happened again didn't have Wifi.

I was furious. So i searched the internet and i saw a lot of problems with this laptop on the Wifi card, and some people even returned (inside their warranty ) the laptops back to the dealer for check,and they couldn't even figure out what happened so they replaced laptops.

I am outside warranty .

I opened the laptop cleaned everything,i even changed wifi card from another laptop and yet again the same thing "turn on the switch".

I even changed the "saving more power" from the properties.

Guess what, LAN network also doesn't work when i try to install the drivers it says " turn on lan from deep sleep mode" the laptop is working in maximize power, without battery ,and i even checked bios and updated also ,there was nothing there also.

What the *** am i suppose to do ?Throw it from the window ?