Sansa m240 was malfunction after went through airport security scanner

My Sansa m240 was not working after went through the airport security scanner.  It was working right before going through the security gate.  My m240 was freezed.  It can not be turned on no matter how many times I pressed the power button.  I tried to connect it into the computer; however, my computer no longer detecting the device.  I suspect all the memory, system files in the m240 were wipe out by high magnetic field (the scanner).

Could anyone give me an insight of how to retore my m240 ?  Thanks

Wayne 

Wayne, I just returned from a trip and have the same problem.  Thanks for you post.  Hopefully, someone will be able to assist us.