I know this post is a bit old, but hopefully some still follows it :) im on unpatched erista with sxpro emunand fw 11.0 ofw 9.0
just to be clear.
1. I follow the guide mentioned from rentry. cant post link due to being new user
2. I dont understand ewabc886 advise. If i migrate with emutool why...
any one have a good guide to upgrade from sx os to atmosphere. last time I looked at atmosphere you should install signature patch files and all kind of hoops to play backup