6/7/1999 These file will update the MT5634ZBA-USB modem to work on both a standard USB equiped PC or USB equiped Macintosh (iMAC or G3). These steps must be executed from a Windows based PC. 1> Execute the Flash32.exe file. It will go out and find your modem. 2> Direct the program to the file that this readme file is found, and instruct it to use the ZUSB517B.HEX file. 3> After flashing the modem, you will need to disconnect the USB cable from the modem. Upon re-inserting the USB cable Windows will have found new hardware. Have Windows use the Drivers that are found in the same directory as this readme file. Your modem has now been upgraded to work on either a Windows PC or Mac. If you have any questions or problems, please contact Technical Support Monday thru Friday 8:00am to 5:00pm CST at (800) 972-2439.