2.rename the file so that it is only PC36IMG. make sure that you do not add any extra .zip's to the name as windows hides extensions by default.
3.transfer the file to the root (that means not in any folder) of the sd card.
4.power off (you most likely need to uncheck fastboot. settings/apps/uncheck fastboot.) then press and hold power+vol down.
5.hboot should see the file and select yes to update.
6.select no to reboot because we want to go into recovery and make a nandroid backup.
7.select recovery.
8.select backup and restore and select backup
9. select the first three and wimax. the other partitions do not need to be backed up. always keep one nandroid backup with wimax keys backed up on your computer.
10.now you can reboot.
11.using a file manager of some sort or even through your computer via usb, you should rename or delete the PC36IMG file on your card. otherwise you will be asked to update every time you go to the hboot screen. you do not need that file any more.