re: a problem with a tablet that was given to me
 

I have 2 RCA RCT6873W42 tablets, OS Android v6.0. I am locked out because of the FRP. The person that gave me the tablets did a factory reset via recovery mode without 1st removing the Google account that the tablets are synced to. He claims not to remember the Google account and password.
I just found out that I have access to the files and directory's in the tablet via the USB cable connected to my Windows laptop. How can I use that to bypass the FRP?

Steve