How do I unlock a phone with a password I don't know?

[AC Question]

My mom asked me to lock her phone with a pin and I did the pin I entered didn't work how do I unlock it??

 

[Kevin Jimon]

I'm the same kid BTW the phone is a samsung galaxy s5

 

[anon(238680)]

Welcome to the forums. If you don't have the correct credentials you cannot unlock the device. You could try taking it to your carrier's store and see what they can do. Sorry.