Nokia C6-00 - What to do if I cannot reset my device and I get the message "End all active calls and connections first"?

The device cannot be reset if there are active connections pending. Close all the applications which have connections active, e.g. the following:

  • Web browser
  • Email applications
  • Set home screen to offline mode (Options > Content to offline mode)

You can also try to force the connections to be disconnected by selecting the offline profile (Menu > Settings > Profiles > Offline > Activate). Note that even though the device is switched to offline profile, there may be WLAN connections still active.

To see if there's a connection still active, select Menu > Settings > Connectivty > Connection mgr. The pending connection can be closed by selecting Options > Disconnect.