FP3(+). Set up and troubleshoot a mobile data connection (3G/4G)

Fairphone 3/Fairphone 3+ (FP3/FP3+) uses the 2G, 3G, and 4G broadband cellular networks.
Read the article No 5G for FP3/FP3+ to learn why we do not yet support 5G

Usually, your mobile data connection (3G/4G) works as soon as you insert your SIM card(s) (see video below) in your Fairphone.  The most common requirements are:

  • you have a pre-paid SIM card with data-credit or you have a valid contract with data-credit
  • you are in an area that has 3G or 4G network coverage
  • your SIM card is in good condition and not older than a year
  • the mobile data on your phone is switched to On.
    • The quick way: pull down the Quickstart menu and tap the Mobile Data connection icon (two arrows). If it is active, the icon is green
    • An alternative method: go to SettingsNetwork & Internet → Mobile network → tap on the name of your provider/SIM card → at Mobile data switch the toggle to On
  • your Fairphone connects to the right network for your provider

If all this is confirmed and you still can not use data, please read on below the video

To insert your SIM cards in the FP3/FP3+:


Set your data SIM card to 4G

Like almost every Dual SIM device on the market, FP3/FP3+ implement the standard Dual SIM Dual Standby (DSDS). This means that both SIM cards are ready to be used at any time, but you can only use one of them at a time. For maximum performance, you can enable 4G on both SIM cards

To set your SIM card(s) to 4G: go to Settings → Network & Internet → Mobile network → tap on the name of your provider/SIM card → Preferred network type→ select 2G/3G/4G auto


Mobile internet settings (APN)

If you are still not connected, find out if the settings required by your provider match with those on your Fairphone. We also recommend consulting the forum of your provider for a mention of issues like yours


Change slots and connections

If you are still not connected, try different connection protocols (4G/3G/2G)

  1. Go to: SettingsNetwork & InternetMobile Networks → (if you have 2 SIM cards, tap on the tab of your provider) → Advanced → Preferred network type → select a different network protocol
  2. If this does not solve your issue, try the SIM card in the other SIM card slot and repeat step 1
    1. If this helps, inspect the previous SIM card slot
      1. If it is damaged, contact customer support
      2. If it is not damaged, inspect your SIM card for damages. If the SIM card is old or damaged, contact your provider to get a new SIM card

If the issues persist, the phone might be trying to connect using a network protocol that is not supported by your contract. Contact your provider for more information


No 5G

FP3 and FP3+ do not operate via 5G. There are several reasons for this, the main one being that at the technology was not fully available yet
You can read this article for more information on FP3/FP3+ and 5G


If after trying these troubleshoots your still experience issues, contact us!