Partial (well, almost total) success on my DS2072A-S.
00.02.01.00.03 (licence key dump): All options unlock OK, but any attempt to crank up the bandwidth fails; NSEH is the only DS2072A code that works.
00.03.00.01.03: Options unlocked above remain unlocked, still won't increase bandwidth
00.02.01.00.03 (patched for non-A keys): SUCCESS! DSCA enabled 300MHz, DSHH enabled all options
Serial: DS2
E1xxxxxxxx
Hardware version:1.2.2.0.2 (shows as 2.0 on the "normal" information screen)
FPGA version:
SPU: 04.00.07
WPU: 01.01.03
CCU: 12.29.00
MCU: 00.05
Many, many thanks to those who made the hack possible!