The lock feature in Android Device Manager lets you reset the Galaxy S6 password if you forget your password on the Galaxy S6 or Galaxy S6 Edge. The authors of this site are not sponsored by or affiliated with a third party trademark or trademark of registered trademark owners and do not represent them, their owners, their products or services. I had to be sure to save data. River Unlock Phone. Two ways that Device Manager does, but after you have entered a password from the Search Device screen, you can not do it anymore. A message appears that the new password is not required. Select the handset instructions that are closest to your model, if it is not available directly. (For example, if you are using a Samsung i900, follow the Samsung F480 Unfreeze instructions.) NOTE: If you can not connect to the service provider, make outgoing calls or receive messages, it will not be locked to the phone or not.