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To restrict background data usage for all apps, go to Settings → Network & internet → Data Saver and set it to on.Ī data connection is at the core of all the functions of a modern smartphone.This means you will have no notifications! Here you can stop apps from synchronizing any data until you open them. Manage the usage of Background data for a specific app.The phone will deactivate mobile data when the threshold is reached. Set data limit (per cycle) for your cellular data.Set data warning (per cycle) for your cellular data. The phone will notify you when the threshold is reached.Turn Mobile data On or Off for a specific SIM card.If you are instead an advanced user, you can go to Settings → Network & Internet → Mobile network to adjust some more settings. Here you can: For example, it might happen that you will not get any more notifications from your favorite apps until you open them! Think of WhatsApp, Instagram, Facebook, Messenger, etc. Please, be aware that depending on how you set these settings, your apps will stop working. Thus we recommend you skip this section if this is not necessary for you The default settings are usually good for most users. You can pick a specific SIM card or decided to be asked every time you want to send a message. Here you can pick a specific SIM card or decided to be asked every time you want to make a phone call SIM card 1 is selected by default, but you can change it enable or disable a SIM card by simply tapping on the switch next to them.assign a new name and/ or color to each SIM card.Press and hold each SIM icon for a few seconds if you want to:.Go to Settings → Network & internet → SIM cards (a notification might appear, just tap it to reach this same place).When you add or change the SIM cards, you will have to set your SIM cards preferences This activates a spring that pushes your SIM card out so you can take it out with your fingertips.To take out a nano-SIM card in your FP3/FP3+ Press the Power button to restart your phone.
![put in a sim card put in a sim card](https://visihow.com/images/0/05/Insert_a_SIM_Card_in_the_Samsung_Galaxy_S7_Edge_52626.jpg)
Press all the way gently in until the nano-SIM card(s) click in place.If you have two SIM cards, we advise you to put your main SIM card (the one you will be using the most for mobile data connection and calls) into the Sim 1 slot.
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Additionally, you will have to decide in advance your preferred SIM card to use for Cellular data. However, you can only use one of them at a time. This means that both SIM cards are ready to be used at any time to receive or make phone calls. Like almost every Dual SIM device on the market, FP3/FP3+ implements the standard Dual SIM Dual Standby (DSDS). You can ask your network provider for a new one. A good practice is to change your SIM card every 2 years. The SIM card(s) do age like any other electronic circuit and might cause unnecessary issues to your phone. Your Fairphone 3/Fairphone 3+ (FP3/FP3+) supports only nano-SIM card(s) (4FF), sized: 12.3 mm x 8.8 mm.