Hi @alexafujise ,
Check the status of the WLAN adapter in Device Manager.
Open Device Manager (right click on Widows Start button, left side of Taskbar select link) and scroll down to Network Adapters, click on the > symbol to expand the list and find the WLAN adapter.
If there is a red cross next to it, right click on the entry and select enable and check if it works OK
If there is a yellow exclamation mark, right click on the entry and select update drivers and follow the prompts. You need to be online (wired) to do this or download them using another device and manually instal them.
If there is no indications of any problems right click on the entry and select Properties and check the device status in the general tab.
If the device is not listed, look in Device Manager > Other Device (if listed) and check. Update drivers if there. If not there check Device Manager > View > show hidden devices and check
If not there check in BIOS (press F2 on startup) to see if WLAN has been disabled.
If still no good, here’s the service manual for the laptop, taken from this webpage. Go to p.38 to view the necessary pre-requisite steps and then the procedure to remove / replace the WLAN card