cfppro123 Posted February 25, 2018 Share Posted February 25, 2018 I am running my iphone thru the usb and it sounds great, but after 10 minutes it just throws out a high pitch tone and nothing else. Ant ideas? 240 HC locks up and goes to feedback tone when playing backing track on iphone. Quote Link to comment Share on other sites More sharing options...
ADBrown Posted March 6, 2018 Share Posted March 6, 2018 Hi cfppro123, that doesn't sound like normal operation. First, make sure you are on the latest firmware. You can check the firmware on the amp by pressing and holding the home button. You can also perform a factory reset.; press and hold the home button and then scroll to and select the last option, factory reset. Be sure to back up any custom presets using the Spider remote app before performing the reset. If all fails I would open a support ticket with Line 6.https://line6.com/support/technical-support/ Quote Link to comment Share on other sites More sharing options...
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