How do I get help with an issue with the Mustang GT amp? Use the Submit a Request link at the top of this page to send a message to our Customer Support team. Related articles Mustang GT Firmware Version Release Notes How do I update the firmware on a Mustang GT amplifier? Why won’t my Mustang® GT Bluetooth automatically reconnect to my Bluetooth device when using Fender Tone? What is two step verification and how does it work with my Mustang GT? What if I don't have a smartphone for Tone? Can I get presets from the web?