JY01 and HDD
December 21, 2021
Basically, JY01 drives HDD spindle well but can't spin it up.

Need to apply manual force:
I have found something that looks like a datasheet.
In English!
Previous efforts resulted in Chinese version.
Given that search engines get worse, I saved it: JY01_V3.5_2018-English.pdf
I tried to adjust start torque. No luck: