Have you attempted to re-calibrate the Express after re-installing the flash?

-Press and hold down the “D” labeled footswitch while you “power on” your FBV (by connecting to your computer’s USB port, or Line 6 device with which you plan on using your FBV). Upon release of the D footswitch, the FBV Tuner’s numerical display will read “1”.

• Press the on-board expression pedal forward fully and hold down pedal’s Toe Switch until the Tuner display changes to “2”. This should occur instantly.

• While holding the pedal in the “heel” (minimum) position, press & release the D footswitch. The Tuner display will change to “3”.

• Move the pedal to the toe (maximum) position, without clicking the Toe Switch. Allow the pedal to rest in the toe position (maximum) and press & release the D button. The 7 LEDs above the Tuner’s numerical display will light.

• Move the pedal and verify that the LEDs above the Tuner’s numerical display sequentially turn off as the pedal moves to the minimum position, and all sequentially light up when the pedal is moved to the maximum position.

• If your 7 LEDs do not light up as described, then try repeating these calibration steps. If your LEDs light up correctly, then calibration was successful - power off your FBV and power it back on and you are ready to go.

Let us know if this procedure fixes anything.

Also, if you are still unable to re-install the flash memory, there may be a hardware problem with the amp and should be taken to an authorized service center:

http://line6.com/service_centers/

Regards,

Line6Hugo