Hi. This is my setup:
Main tube is Sky watcher 72ed on Star Adventurer 2i. Guide tube is Svbony 60mm with ASI120MC-S. The camera is connected to ASIAIR through USB 3.0 cable (yes, I know ASIAIR has USB2 ports only, but camera uses USB3) and to mount through ST-4 cable. I cannot even calibrate guiding because "the star did no moved enough"; however, I can make calibration on PHD2 (and took 10min pictures with good guiding). Can anybody help me, please? What I am doing wrong? Thanks in advance.