Re: can we track our lumia 535
You may be able to determine the last known location of your phone through your Microsoft Account.
1. Login to account.microsoft.com.
2. Click on the "Devices" tab.
3. Look for your Lumia 535 in the list.
4. Click on "Find my Phone". The last known location is also displayed there.
5. In "Find my phone", you should see a map showing the current location of your phone. In that page, you could also "Ring", "Lock" or (if it was stolen or irrecoverable) "Erase" it.