almost all sat rcv have the same part & procedures in upgrading!
briefly you need a null-modem cable, pc or laptop w/ serial port, a loader program for your particular receiver & the upgrade software. Connect the null modem to your receiver & PC. Open or run the loader prog, then load the particular upgrade. Some receivers need to be turn off then on, some only in standby mode.
sorry i can't refer you where to find the programs but you look it up by using the net search engine. the null-modem cable you can do it yourself or buy in any electronic shops.