What is a radio image?

[Guest benj.vd]

Hi,

I've not been able to Google an answer... What is a radio image? When do I need to apply one?

I've rooted my desire and now have a Froyo working almost perfectly. I've read here and there that applying a radio when moving to Froyo might be necessary.

Thx for the support,

/b

Edited August 13, 2010 by benj.vd