While I was able to update my Spider IV amp successfully, it seemed the update firmware for the FBV Express MKII is somewhat buggy. Somebody had mentioned that the issue starts happening once you access the Spider Edit w/ the pedal and amp connected then to the computer. If only I read the previous topic about updating the firmware of the pedal, I wouldn't update my pedal in the first place.
Just like with the experienced of another user, I'm having the same now. I even tried to re-installed the fw thrice and re-calibrated the pedal but no joy. I'm using Cat 5 cable and have a cable tester. Cable has no issue.
Here's the excerpt description from previous user that Im having too.
first things worked fine. These two communicated, my cables are all good no problem. Then I decided to upgrade the firmware and try to use Spider Edit. That was the begining of the end.
Using a new Sony Vaio Win 7 laptop, the firmware update went fine for both the amp and FBV. I could read settings from the AMP and edit in Spider Edit.
But, as soon as I disconnected the FBV from the PC it stopped working. I got funny sounds and the FBV was useless, then amp acted odd too. At this point I factory reset the amp (hold "A" and powerup). The amp is now working fine.
The FBV was still dead, just flashing LEDS. I could not calibrate. It would not talk to the amp or pc. Finally after much random powering up and cable in/out I managed to get into calibrate mode and then it would work again with the amp. Encouraged, I was dumb enough to plug it into the PC again. BAM, back to dead flashing LED mode.
Atthis point the FBV is not recognized by the PC and not controlling the amp at all. It just flashes its LEDs. If I click the wah/vol button the flashing stops, but still dead.
this thread was in 2011.
I'm using an HP Elitebook w/ Win7 OS. Now, what I'm thinking I need a computer w/ an XP OS and will try to revert the updated FW back to the 1.00 version the original factory version. Hope it will work. But the question is, where can I find a PC now that has windows XP?
Line6 should have posted a disclaimer to users along w/ the new Fw update about its issue. They haven't replied yet on the ticket i raised almost a week ago.