Calibration results:
CH1 offset at 2V/div : 77 FAIL
Rounds : 51
CH1 offset at 1V/div : -46 OK
Rounds : 51
CH1 Y-position low, CH1_DAC1 201 0
Rounds : 33
CH1 Y-position mid, CH1_DAC0 201 77
Rounds : 51
CH1 Y-position high, CH1_DAC2 201 255
Rounds : 32
Getting this calibration result, cant be much wrong as it worked initially but now refuses to calibrate