RBR850 replace with RBR852 (cable modem added) and firmware risk?

[gumpgump]

I am looking to consolidate the equipment I have.   I have the RBR850 and a satellite, along with a CM1000 cable modem.  I'd like to have the RBR852 that has a built-in cable modem -- but it occured to me there may be some issue with the cable company locking down the firmware.  I can't imaging the user-space part being subjected to that, but since I don't have access to one, I wonder if someone can comment.

Also, in the above scenario, could the RBR850 be comverted to satellite mode?

[FURRYe38]

No. RBR can only work in router or AP mode. The CM1000 and RBK is an ideal configuration thats is recommended.