How To Unlock Iphone 4 Passcode On Itunes. A fast and easy-to-follow software that unlocks the screen and protects all contacts, audio, video, apps, and files that annoying you for backup and data interference. Method 4 The fourth method to unlock the Samsung smartphone if you forget about the Samsung Galaxy Password is to reset Samsung mobile device by turning off the phone and then pressing the Home button and slowly releasing the power button while pressing Home button on Samsung smartphone. The lock device on Android Device Manager lets you reset your Galaxy S7 password if you forget the password for the Galaxy S7 or Galaxy S7 Edge. Locking behind a lock screen limits the amount of data you can access and back up. (Fortunately, the reset will not affect the contents of the SD card.) I tried to reset my phone to factory settings. I was prompted to sign in with a Google Account previously stored on this device, requesting my password, entering my password, and then switching to another screen, which said checking or reviewing information it thinks for a moment and return to the Google screen, ask my email, which has previously gone down on my device, I have WiFi connection.