If you need to contact Nokia Care or your service provider, you may need info, such as your phone's model number and serial number (IMEI). To see the info, tap Settings > about.
You can also find the info on your phone label, which is located between the nano-SIM holder and memory card holder. To see the phone label, pull out the holders.
To open a holder, push the SIM door key into a hole until the holder is released, and pull the holder out.
To view your phone's IMEI number, dial *#06#.