What is the current process when iphone upgrades its baseband with an iphone update? What is the security envoled in stopping a downgrade. What is required to be able to downgrade a baseband. (and an another noob question i guess, what would be required to load a custom baseband, is it possible/has it been done). --The preceding unsigned comment was added by Markcoker (talk) 13:53, 27 September 2011 (GMT). Please consult this page for more info on how to sign pages, and how to fix this.