About Programming Chips

[ndagi]

all around this forum and many others you can find 'hex' files for many hardware products .links and crack to download from may web pages but, no one actually describe what tool is used to program devices and how to go about this.
I have two sagem code reader1 dongles both of them working and i want to convert one to jtagg reader (fortunately that's an easy one) .Problem is i don't know where to get the 3.8mhtz crystal thats to be changed after the software upgrade.
I also have a sagem master original that i never got support for because i had my uncle in the states buy for me with his credit card(i live in nigeria) and so thier secure ****ed up registeration didn't autthenticate me with my email address despite tons of mails to my reseller (multi-com) and also to sagmaster support. So i'm stuck with the dongle here over $300 worth of equipment staring at me.
Someone please help with a step by staep guide on what tools to get and where to find appropriate help on programing chips if you cannot poost solution here.
thanks in advance
regards
ndagi