How to do backup radio gsm?

[thua]

How to do backup radio gsm? Do I need to do it to my dopod s300 before I can Flash radio? Thanks!

[lewnetoons]

can't find radios only, but here is a link to roms with different radios, http://rapidshare.com/users/1NBLVZ back up your info, install, then install your fav rom minus the radio
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