Nokia 3.1 user guide

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Nokia 3.1

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Change your SIM PIN

If your SIM card came with a default SIM PIN, you can change it to something more secure. Not all network service providers support this.

Select your SIM PIN

You can choose which digits to use for the SIM PIN. The SIM PIN can be 4-8 digits.

  1. Tap Settings > Security & Location > SIM card lock.
  2. Under the selected SIM card, tap Change SIM PIN.
Tip: If you don’t want to protect your SIM with a PIN, switch Lock SIM card to Off, and type in your current PIN.
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Software Updates
  • Keep your phone up to date
  • Keys and parts
  • Insert or remove the SIM and memory card
  • Switch on and set up your phone
  • Dual SIM settings
  • Lock or unlock your phone
  • Use the touch screen
  • Charge your phone
Protect your phone
  • Protect your phone with a screen lock
  • Change your SIM PIN
  • Access codes

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