I also attach parameter data from before and after. As you can see the band plan has changed to get rid of the US/DS overlap and some other minor tweaks. DS speed has improved somewhat.
Something looks a bit odd there.
Neither of those pbParams band plans that you posted look like they are from a HG612 with
fully updated firmware.
This is what most of us have seen that are connected to Huawei DSLAMS:-
This was the previous band plan from ages ago:-Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,
3959)
This is the intermediate band plan from a HG612 that hasn't had its firmware updated:-Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,
3971)
This is the band plan from a fully updated HG612:-Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)