Thank you for purchasing a Spider V/Spider V MK II amp. To get the best performance from your new amp, please upload the latest firmware. You can upload in one of two ways connected to a mobile device or connected to a computer. We strongly suggest updating the amp from a desktop/laptop computer, even though it is possible to do so from a mobile device. It will take about 5 minutes to complete the upgrade. Please follow the instructions below.     Updating firmware from a Mac or P