After deleting the Windows and installing ubuntu ,may be some drivers get disabled , to activate this back in ubuntu or in Linux mint we can use the following steps
1. open the Terminal
2. check the status of the hardware devices by using the command rfkill list
$sudo rfkill list
3. you can see whether it blocked by hardware or software if it is blocked by hardware or software you can unblock it by using the the command rfkill unblock
$sudo rfkill unblock 0: phy:0
You can block or unblock all wireless devices by hard block or by soft block
1. open the Terminal
2. check the status of the hardware devices by using the command rfkill list
$sudo rfkill list
3. you can see whether it blocked by hardware or software if it is blocked by hardware or software you can unblock it by using the the command rfkill unblock
$sudo rfkill unblock 0: phy:0
You can block or unblock all wireless devices by hard block or by soft block
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