Would rooting a brand new phone in this method cause a phone to lose 4G for some reason? I rooted using this guide with a brand new nexus s 4g and could not get 4G to connect for the life of me. So, I unrooted back to stock also using this guide and boom, my 4G worked again but now I am not rooted. Could flashing that deodexed rom/recovery break something? I really don't understand how/why that could have happened. No matter which rom or how many times I wiped everything I could not get 4G to connect...it would get stuck at "obtaining ip address". When I flashed back using the images it worked.
(Yes, I bought one for my wife and one for me. One was new one was used both from ebay)