The Fairphone 4 is eSIM compatible, so here's how to install your eSIM:

1. In your aloSIM app (or your account on alosim.com), select "My eSIMs"
2. Choose the eSIM you wish to install
3. Tap "Install Your eSIM"
4. You can choose from QR code eSIM installation or manual eSIM installation
   1. QR code installation requires scanning the QR code and following the on-screen prompts
   2. Manual installation requires copying and pasting the SM-DP address and Activation Code into the appropriate fields within your phone settings
5. Your APN should be set to "alosim" (add "alosim" if it's not appearing there)
6. Data Roaming should be ON for aloSIM (so we can connect you to the best network), but Data Roaming should be OFF for your Primary SIM (if applicable) so you don't incur roaming fees

Remember that eSIMs can only be installed once, on a single device, and eSIMs should not be deleted even after your package expires (because you may want to top it up someday).