Hantek 6025BE calibrate

LKIJ

Hi. I buy Hantek 6025BE osciloscope. And i have three question:
1) How need calibrate CH1 and CH2 ZERO (Utility -> Calibration)? Need short BNC socket in osciloscope panel or need connect probe to BNC socket and short ends of probe? Because probe center wire has ~250 Om/8,9 MOm (x1/x10) resistance. Calibrate must be done in x1 or x10 mode?;
2) How need calibrate trigger ZERO, as well as CHx in first question?;
3) Calibrating time? CH1 and CH2 was calibrated 2 hours, TRIG i will test this night, because i see need many hours.

LKIJ

Who influences long calibrating time? TRIG calibrating after 15 hours was not ending. Now i test on other PC.

LKIJ

Dear sir, TRIG calibrating never ending. Then i try measure (CH1) reference 1 kHz signal, from osciloscope panel whit trigger source CH1, then whit external trigger source, when in EXT input connected 1,3 V battery, but i not see signal line in application. Autoset function also not show signal line.
Is it damage and i must return product back to seller www.tme.eu ?

LKIJ

Thank you for answer. I already return osciloscope to seller.