DSO Quad engineering sample bug and firmware upgration

I am using DS203 and SYS ver 1.51, APP ver 2.52.
Signal 8 MHz:

FRQ: show it as 8 kHz (needed “MHz”)
CIR: 0.0124 us (really 1/8MHz = 0.124 us)

500 kHz showed as 500 Hz (from internal signal generator):

FRQ: show it as 500 Hz (needed “kHz”)
CIR: 2 us (it is correct)

FRQ:
Signals from 0 to 999 Hz it showed correctly, as Hz
Signals from 1 to 999 kHz it showed as Hz
Signals under 1 MHz it showed as kHz