[Q] Upgrading from cm9 to cm10 with 2g connection

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http://forum.xda-developers.com – I have one simple question about the Upgrade! I use CellularOne for my cell service and currently I have to have a 2g connection. Ya I know its slow as hell but I only pay 45 bucks a month for unlimited everything. CM9 on my unlocked AT&T Skyrocket has worked great on 2g and has the option to mark "2G"only in settings. My question is will 2g work in Jelly Bean? The only reason I'm asking is because right before flashing I read TeamChopsticks CM10 Release Notes one more time. In the Know issues it states that "(AT&T only) "Use only 2G networks" option in Setting (HowTos)