Is it okay not to use an electrostatic sticker?
Yes, but not recommended. Using an electrostatic sticker allows for repositioning the dashcam without leaving residue from 3M adhesive on the windshield.
How long is the power cable?
How long is the rear camera power cable?
What should I do if the 3M adhesive pad becomes loose?
It is recommended to replace it with a spare 3M adhesive pad. When installing a new 3M adhesive pad, please ensure that the glass surface is clean and dust-free.