Nokia T21 user guide
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Insert the SIM and memory cards
Insert the cards TA-1495, TA-1505, TA-1521
- Open the SIM card tray: push the tray opener pin into the tray hole and slide the tray out.
- 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.
- Slide the tray back in.
Insert the memory card TA-1487
- Open the memory card tray: push the tray opener pin into the tray hole and slide the tray out.
- Put the memory card in the memory card slot on the tray with the contact area face down.
- Slide the tray back in.
Important: Do not remove the memory card when an app is using it. Doing so may damage the memory card and the device and corrupt data stored on the card.
Tip: Use a fast microSD memory card (up to 512 GB) from a well-known manufacturer.