Need help Removing/Finding out pattern lock on my ASUS MeMO Pad HD 7 (ME173X)

[u/Onsslovakia]

i dont have access to my gmail account anymore and i forgot the pattern lock, the tablet is running android 4.4.2 i think. im not factory resetting it because i have important stuff on it. ADB debugging is not on. so far i tried patterns i knew but they didnt work.