1. Connect your amp to your computer with mini USB cable.

2. Click SUPPORT (upper part of this page)

3. Go to FIRMWARE UPDATE section (middle part of this page)

4. If you use a web browser supporting MIDI click on FIRMWARE UPDATE IN BROWSER, you will get an information whether your firmware is up to date or not.

5. If you dont't use a web browser supporting MIDI click on DOWNLOAD WINDOWS FIRMWARE UPDATE UTILITY, run it and you will get an information whether your firmware is up to date or not.

Just additional hint: if you have to update your firmware do it using this utility rather then browser. Some people (including me) had problems with browser, while update utility works perfectly well.