6. Upgrade Switch Firmware

To download the lattest firmware go to: https://software.cisco.com/download/navigator.html?mdfid=283009439&flowid=18904
 

From there find your model:
SG300-20 : https://software.cisco.com/download/release.html?mdfid=283019616&softwareid=282463181&release=1.4.7.06

SG300-10 : https://software.cisco.com/download/release.html?mdfid=283019611&softwareid=282463181&release=1.4.7.06
 

Install new Firmware.

1. Go to the upgrade page as shown in the picture and click Browse.
   
   
   
   
2. Browse to the location were you're firmware file resides, select it and click open.
   
   
   
   
3. Click APPLY to apply the firmware, it will take some time.
   Then click on "DONE"
   
   
4. When that's done, click on the ACTIVE IMAGE link.
   
   
5. Select the latest IMAGE in "ACTIVE IMAGE AFTER REBOOT" and click APPLY.
   
6. Then "CLICK" on the "REBOOT LINK"
   
   
7. The reboot menu will appear, click on REBOOT"