Upgrade Firmware while keeping baseband 01.10.04


macrumors newbie
Original poster
Jun 22, 2011
I am running a AT&T Iphone 4 on 04.10.01 (sorry put it wrong way around in title) which i have been using a gevey sim to have it unlocked.

Just want to confirm that i can with Red Snow keep/preserve the baseband while still upgrading to latest 5 update?

If so can you show me the way to a video or instructions :)

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