Nokia 800 user guide

1. With your phone facing down, put your fingernail in the slot above the SIM and memory card tray cover and pull the cover down.
2. Push the tray opener pin into the tray hole and slide the tray out.

1. If you have a single-SIM phone, put a nano-SIM card in slot 1 and a memory card in slot 2 on the tray, with the contact areas face down.
2. If you have a dual-SIM phone, put a nano-SIM card in slot 1 and either a second SIM or a memory card in slot 2, with the contact areas face down. Both SIM cards are available at the same time if neither of them is being used, but while one SIM card is active, for example, making a call, the other may be unavailable.
3. Slide the tray back into the slot.
4. Press the cover firmly back in place to prevent dust or water entering the phone and damaging it.

Press and hold the power key until the phone vibrates.

1. Press the scroll key and select Settings > Network & Connectivity > SIM manager.
2. To choose which SIM to use for calls, select Outgoing Calls, and select SIM1 or SIM2.
3. To choose which SIM to use for messages, select Outgoing messages and select SIM1 or SIM2.
4. To choose which SIM to use for mobile data, select Data, and select SIM1 or SIM2.

• PIN or PIN2 codes: These codes protect your SIM card against unauthorised use. If you forget the codes or they weren‘t supplied with your card, contact your network service provider. If you type in the code incorrectly 3 times in a row, you'll need to unblock the SIM with the PUK or PUK2 code.
• PUK or PUK2 codes: These codes are required to unblock a PIN or PIN2 code. If the codes are not supplied with your SIM card, contact your network service provider.
• Screen lock: The screen lock helps you protect your phone against unauthorised use. You can set your phone to ask for the screen lock code that you've set. Keep the code secret, and if you have to write it down store it in a safe place, separate from your phone. If you forget the code and your phone is blocked, your phone will require servicing. Additional charges may apply and all the personal data on your phone may be deleted. For more information, contact the nearest care point for your phone or your phone retailer.
• IMEI code: The IMEI code is used to identify phones in the network. You may also need to give the number to customer services or your phone retailer. To view your IMEI number, dial *#06#. Your phone's IMEI code is also printed on your phone's label, which is located under the battery. The IMEI is also shown on the phone's original packaging.