how to recover the back-up data from google account? I backed-up my passwords and data from phone on to my google account. Then reset the device. how can i recover the saved passwords?(specifically wifi password)
As soon as you log back in to your Google account, your old apps should start reloading and their data restored. Of course, if you don't have your WiFi password, this is all happening over your cell data link, which could take a while. You might want to enter the password manually to make the process go more quickly &amp; not consume your data usage.

You should probably note that not all apps, including built-in apps, save all data.