Forget phone password

Yes but if u have a samsung account you can unlock ur phone by logging into ur account from another samsung phone

but how tell me

type find my mobile samsung in the search bar of another device. And then log in in ur samsung acc. select unlock phone. and u r good.

u can use forget password ..

Thank you for being a part of Samsung community. To unlock the device if you forgot the lock screen password, you can use Find my mobile service to reset the lock screen online. It is only possible if you have configured Samsung account with Find my mobile service and device is connected to Internet. Visit the link https://findmymobile.samsung.com/ enter Samsung account and tap on unlock.
If you are unable to unlock the device from the above process you need to visit the Samsung authorized service center. Please find service center details in the link provided -http://www.samsung.com/in/support/servicelocation

Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/