MD110 SPU2 Software upgrade

I recently upgraded the software on a BC11 system's SPU2. In transferring the file from my PC to the PABX, I found that it could not handle the full file name (CAAxxxxx_R11A.HEX). It would copy the entire file over, so the file size would be accurate. However, on the PABX, the file would not have the full name, including the .HEX. Renaming the file does not affect how the PABX sees it, and this was the only way to maintian the file name with its .HEX. If the postfix is missing, you will not be able to load the software from the NIU2 to the desired board.