Hi everybody! My question is how to change default password the Yoosee camera? Thank you!

I cannot reset two cameras, no button, no extra cable with reset button! s/n 20171022258 and 20171008258 I check even inside, there is no reset botton, onli two empty holes labeled 12v gnd. I still remebering the IP but not the password, I need to restore default factory configuration. any...