How to lock my lenevo android mobile phone

[shubham22v6]

Sir in my cell phone gmail account is activate and I couldnot set privacy or password in my gallery and document .How I can lock my mobile

 

[webworkings]

We cannot assist in bypassing any passwords, log in requirements, etc. Please read the following thread... http/www.tomsguide.com/forum/id-2311806/read-passwords-lock-codes-pin-numbers.html