Satellite L500 - wireless network adapter is missing in Device Manager

Hi guys, I have read a lot of discussion but not found a job of answer to my problem and yet, although this doesn't seem to be a common problem, so I was wondering if someone can help out me. Model laptop is L500-1VT. There is no switch on / off external WiFi.

In short:
-Awake portable sleep, already before his pan was connected to wifi, but suddenly had no connection.
-Adapter doesn't not appear in Control Panel, so checked Device Manager. Isn't there. : S

-Thought that maybe something has come loose? But then checked msinfo32.exe and adapter was seen here.
-Read a lot of discussion about it being from PVAT with FCU, then followed advice doing reinstalls and uninstalling and reinstalling driver wlan (this being seen in lost msinfo32.exe.) Unfortunately, it did not work. Still not apparently visible to windows.
-Fn + F keys never worked and after reinstall of the above programs still do not work.
-Wireless is enabled in the bios.

-However, and I don't know if it's the crux of the problem. * Wireless is DISABLED in HWsetup.exe. When I try to turn it on, it says reboot needed. If I do that immediately, or much later, I get a blue screen and memory dump.* so I'm sure it's a software problem.

-J' also tried restores system and disks of microsoft repair. But I am at a loss about what to do now, so use my phone via USB WiFi to connect to MTAs.

If anyone has any ideas, it would be great!

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Hello

WLAN works when you restart your laptop?
Latest version of the BIOS is installed on your laptop satellite?
Have you tried updating the BIOS too?

And Yes, last question: do you use the original OS that you got with your laptop (recovery image)?

Tags: Toshiba

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