Support Rooted RAZR MAXX with 4.1.2, now GPS doesn't work

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http://androidforums.com – Immediately after rooting my new razr maxx, the GPS has stopped working completely. It never finds any satellites. I tried two apps to test/fix the GPS and they both just show no satellites in view, even though just before rooting there were plenty available. Has anyone previously encountered this? Any idea what causes it or how to fix it? Thanks for your help! (General)