FP4. Set up SIM card


Fairphone 4 (FP4) supports one physical nano-SIM card (4FF), sized: 12.3 mm x 8.8 mm.

We recommend using a new SIM card for your phone. The SIM cards do age like any other electronic circuit and might cause unnecessary issues to your phone.

We recommend renewing your SIM card every 2 years. You can contact your network provider on how to get a new SIM card.

Like almost every Dual SIM device on the market, FP4 uses the standard Dual SIM Dual Standby (DSDS) technology. Both SIM cards are ready to be used at any time to receive or make phone calls. However, you can only use one of them at a time for cellular data. Additionally, you will have to decide in advance your preferred SIM card to use for Cellular data.

To activate your eSIM card, we have a separate support article to guide you. 

Some providers restrict international SIM card use - especially on pre-paid plans. Check with your provider what the terms and conditions are for international use. 


Insert the SIM card

To insert the nano-SIM card into your FP4, please read the instructions below the video.

Or, watch our video tutorial on Getting Started:

  1. Open the back of your phone.
  2. Take the battery out. Underneath, you'll see two icons outlined in white.
    The SIM1 card slot is on the top.

    The slot below is only for a Micro SD card. Do not force your SIM card inside the Micro SD card slot, or you will void the warranty of your Fairphone.

  3. Press all the way gently in until the nano-SIM card clicks in place.
  4. Insert the battery again
  5. Put the back cover back on.
  6. Press the Power button to restart your phone.

To take out a nano-SIM card in your FP4.

  1. Open the back of your phone.
  2. Take the battery out.
  3. Push the SIM card deeper into its slot lightly. You will activate a spring that pushes your SIM card back out.
  4. Please take out your SIM card gently without bending it.


Set your dual SIM preferences

It is possible to use both a physical SIM and an eSIM card with your Fairphone 4. You can set this further in your preferences:

  1. Go to Settings Network and Internet → tap on one of the 2 SIM cards
  2. Here you can select:
    1. Data preference - here, you must choose. SIM card 1 is there by default, but you can change it in these settings.
    2. Calls preference - Select a specific SIM card or decide to be asked every time you want to make a phone call.
    3. SMS preference - You can select a specific SIM card or decide to be asked every time you want to send an SMS.

Advanced data settings

The default settings will usually be suitable for the majority of users. We recommend you only adjust these settings if they are relevant to your needs and situation.


Keep in mind that adjusting these settings can interfere with the way applications work on your Fairphone 4. For example, it can happen that you will not get any notifications from your apps (Ie. WhatsApp, Instagram, Facebook, Messenger, etc.) unless you connect to Wi-Fi!

If you are an advanced user, this is how you can adjust some more settings:

  1. AdvancedData Saver. You can set it On or Off. Here you can manage the usage of Background data for any specific app. Some apps might stop synchronizing any data. You will not receive notifications until you open the app!
  2. Tap on a SIM card → Mobile data. You can set it On or Off for the specific SIM card.
  3. Tap on a SIM card → Roaming. You can set it On or Off for the specific SIM card.
  4. Tap on a SIM card → AdvancedData warning & limit.
    In this menu, you can set preferences and limits (per cycle) for your cellular data. The phone will deactivate mobile data once it reaches the threshold:
    1. Enable Set data warning.
    2. Set a Data warning.
    3. Enable Set data limit.
    4. Set a Data limit.
    5. Enable Preferred network type.
    6. Set Preferred network type.
    7. Set Wi-Fi Calling preferences.


General recommendations

A data connection is at the core of all the functions of a modern smartphone. To avoid over-using your mobile data, always connect to a Wi-Fi network when possible.

To avoid unexpected charges, contact the customer service of your network provider. Ask them to help you analyze your mobile data consumption and make sure to choose the best plan for your needs.

Your Fairphone 4 battery has plenty of power to serve you for a full day of regular usage.

If you are running low on battery, you can disable the mobile data to extend your battery life. If you have a weak mobile signal or are on the go and navigating, your phone will consume more energy to stay connected.

To quickly enable or disable mobile data on your device:

  1. Swipe down from the top of your screen.
  2. Locate the Mobile data icon (swipe right or add it via the Edit pencil icon if not there).
  3. Tap on the Mobile data icon to turn mobile data On or Off.


Take your SIM card out.

In case you need to take your nano-SIM card from the phone:

  1. Power off the phone.
  2. Open the back of your phone.
  3. Take the battery out. Underneath, you'll see two icons outlined in white.
    1. The nano-SIM card slot is in the middle.
    2. Below you'll see the Micro SD card slot.
  4. Push the visible part of your nan-SIM card further into the SIM card slot: to the right. 
    Do NOT use any metal tools to retrieve a nan-SIM card
    from the SIM slot. You can damage the SIM card, and damage to the SIM card slot will void the warranty!
  5. Press gently further in until you feel the nano-SIM card is at the end of the slot.
  6. Release the pressure so that the spring can eject the nano-SIM card.
  7. Take the nano-SIM card out.
  8. Insert the battery again.
  9. Put the back cover back on.
  10. Press the Power button to restart your phone.



If you need more help after reading the article, you can use our Troubleshooter or get in touch with our Customer Support.