Pin Forgot. No root. No access to USB data transfer. Don't wanna factory Reset.

I have forgot my pin which was set just an hour ago. Fingerprint won't work as I restarted my device. I can't loose data. Please help me. USB won't work as device is locked.
Right now, I'm using guest mode. Where I can't even make a call. Just can access net and can't and other basic apps. Can't install any app due to insufficient storage.
😉😅😑🤐Sorry guyz. Please Lemme know asap.
:eek::confused:

from xda-developers http://ift.tt/2ctB4AZ
via IFTTT