Physical SIM installation instructions (iPhone)

Follow the steps below to configure the Fonus physical SIM on your iPhone. Make sure that you have successfully activated a SIM card on the Activate page before proceeding.

Settings > Cellular (single-SIM view)
Settings > Cellular (multi-SIM view)

Step 1: After going through the Activate page successfully, check your email inbox for an email with the subject “Finish activating your Fonus SIM!“. Click on the one-time activation link in that email and enter the 19-digit ICCID number that is printed on your SIM card. Click “Activate” and make sure that your activation is successful. 

Step 2: Insert the Fonus SIM card into your iPhone.

Step 3: Go to Settings > Cellular > Cellular Data Network (see first image).

  • If you do not see “Cellular Data Network“, then it means you have multiple SIMs on your iPhone (see second image). 
  • In this case, please make sure that all SIMs and eSIMs are removed or turned off (by clicking on them and toggling “Turn On This Line” to the off setting), except for the Fonus SIM (in this case it is “Secondary“, but could be another name that your iPhone has assigned to it, such as “Business”, “Travel”, “Personal”, etc.).
  • Click on the Fonus SIM profile in your list of SIMs (“Secondary” in this case), then click on Cellular Data Network.

Step 4: On the “Cellular Data Network” page, enter in both APN fields for Cellular Data and Personal Hotspot (see image). Leave the “Username” and “Password” fields blank.

Return to the previous screen when done.

Single-SIM view
Multi-SIM view

Step 5: Make sure that “Cellular Data” is switched on and “Roaming” is set to on (see first image).

If you have multiple SIMs, make sure that “Turn On This Line” and “Data Roaming” are enabled (see second image).



Step 6: Connect to a Wi-Fi network on your iPhone with Internet access. Open the Safari browser, go to and click on Download APN Profile

Click “Allow” on the popup that shows up and click “Close” when you see “Profile Downloaded” (see image).


Step 7: Go to Settings > General > VPN & Device Management and click on Fonus APN Profile (please remove all existing profiles first if you have any installed already).

  • Click Install on the top right and enter your device passcode (if any).
  • Click Install again on the top right corner of the Warning page. Click the red Install button that pops-up below.
  • Click Done on the top right corner of the Profile Installed page

Your Fonus data should be working now! 

If not, enable Airplane Mode for 30 seconds and disable it.