After update my RBM11G w/ R11e-LTE6 from beta5 to beta6 the LTE modem can't connect to BS. I'm downgrade to beta5 now. i also noticed a similar thing. my ltap mini was running 7.1b5, and i upgraded it to 7.1b6. it worked for 2-3 days, and after a reboot it suddenly got into a state, that the LTE mo...