[iMore Question]

if your is locked with password

[kch50428]

Depends on what you mean by "locked with password"... if it's Activation Locked - there's nothing you can do about that other than entering the correct credentials as in the AppleID and Password the device is locked to.

[comiken205]

Hmmm....sounds like a stolen phone? JK

[Rob Phillips]

Welcome to iMore! Exactly what @kch50428 said. If the device is actually yours and you know your Apple ID and password, follow the link for more information.
https://support.apple.com/en-us/HT204306
If you've forgotten your password you can attempt to reset it at http://iforgot.apple.com.