I try to do a firmware update on the AMPLIFi 150. I was doing the update with my iPad and Bluetooth connection. The update failed. I restarted the amplify well holding the tone and channel buttons the flashing white light stop and go but they are now all solid in no Bluetooth connection. I need to sync the iPad again because I remember thinking that it was needing to be reset. I have dried date with computers in the Line 6 updater it is not my amplifier. My amplifier was registered with Line 6 when I bought it but I guess it also needs to be assigned? Is this why it is not being found in the program? Any ideas what I can do to update the firmware or restore the old firmware,starting while holding the volume down is not working. Help I'm lost