I installed cm10.1 using ssfestrap and all is fine. However when i boot back into stock(non safe). The phone will not get mobile data, the connection bars stay white and never turn blue even if i let it sit there for a while. I have rebooted several times and wiped the cache using stock recovery. when i boot into cm10.1 i do get data connection. What might be preventing the stock o/s from connecting to 4g?