caljoejoe

I am replying to my own post because I finally achieved success! I have tried two Mac computers and one Windows computer. My 2014 Mac Mini is not old enough if you can believe that (because it doesn't support 32 bit apps). My older Mac Book Pro does support 32 bit but I couldn't get it to work. My wife's Windows computer finally worked but not without a lot of trial and error. I had to download the Spider amp IV firmware manually from the Line 6 downloads to be used later. Then I had to click on the monkey icon in the upper left of the Monkey app and select diagnostics which opens up a folder. From there I had to removed or delete the only file with the monkey icon. Then with the computer not connected to the internet close and then launch the Monkey app and a whole list of devices appeared one of which is the Line 6 FBV Express MKII. Just make sure you connect the Spider amp to the pedal and the pedal to your computer's usb before launching Monkey. I hope I haven't left anything out. After working on this for about a week, I was about to give up. I was able to update my Spider amp's firmware and I can now use the Spider Edit app. I had a lot of help from Google AI. I would recommend that if you run into any trouble or respond to this post.

I have the same problem I can't use the Spider Edit software because my Spider IV 75 amp does not meet the minimum firmware requirement. I can't update because the Monkey software doesn't allow me to update the firmware because it says no device found. I have the FBV Express MKII as the interface. My Mac mini is old but still too new the use The Monkey software but I have an older Mac Book Pro that will run the software and also a Windows 7 laptop that will run it as well but still no luck. Does anyone know of a workaround? I've tried the Line 6 Updater with no luck. Thank you for reading this. I would really appreciate a solution.

I realize this is an old post but for others reading the post with the same issue, I have the same problem. The workaround is to either lower the volume on the guitar or use an effect pedal between the guitar and the amp. I'm no expert but from what I've read some guitar pickups are overloading the amp and it is invoking some protection circuitry. The effect pedal must protect the amp from an input overload. Interestingly my guitar that I have had since the mid 1980's does this behavior with the amp but it didn't used to. Like I said, I'm no expert but I hope this helps.