How to update Porsche Piwis Tester II driver and firmware?

How to update Porsche Piwis Tester II driver and firmware?

Attention: 
1) Please check the internet connect before updating.
2) The Porsche Piwis Tester II needs to connect with PC. (Do not connect with cars.)

1. Click the "Online Update" on the Porsche Piwis Tester II main menu.

2. There will be another page showed. Choose "Update" to update the Porsche Piwis Tester II driver and firmware.

3. This is the screen during the update.

4. After the update finish, close the software interface.