It's probably already got the update. Check the version again, it's not the main version # (platform version) but the sub version # (application version) that moves to 3.001. Platform version will remain at 3.000:
Step 5
Once the firmware update is completed, please perform the following steps to confirm that the firmware update was
successful:
• Press the “HOME†key
• Select the “Settings†tab
• Select “System Settingsâ€
• Select “Service Informationâ€
• Press & hold left upper corner of the “Service Information†screen for a few seconds
• Confirm that your system correctly displays the below information:
Platform Version: 3.000
Application Version: 3.001