XT 912 and XT 912m only differ in the battery, everything that works for the Droid Razr will work for Droid Razr Maxx.
Yes, everything works. The variants are not different regarding anything s/w related.
BMM, SS both works.
The xt910 (GSM) and the xt912 (CDMA) use different versions of ROMs. Ensure you install a ROM for the correct version of Droid razr.Do the custom roms in this section support the droid razr maxx xt912m too??? Thanks