🌐 Mobile Data & APN Settings – ONSIM

When you first activate your ONSIM SIM or move it to a new device, you may need to manually configure the Access Point Name (APN) to enable data.

For all devices, use these exact credentials. Spelling is case-sensitive.

Navigate to: Settings > Mobile Data > Mobile Data Network.
- Note: On some versions, it is Settings > Cellular > Cellular Data Network.
Enter APN: Under the Mobile Data and LTE Setup sections, type globaldata into the APN field.
Confirm Other Settings:
- Data Roaming: Must be ON
- Voice & Data: Set to 4G or LTE.
- Network Selection: Set to Automatic. It should display Mobile-X or ONSIM.
Reboot: Restart your iPhone to apply the changes.

Navigate to: Settings > Connections > Mobile Networks > Access Point Names.
- Note: On Pixel/Stock Android, it is Settings > Network & Internet > SIMs > Access Point Names.
Add New APN: Tap the Add button or the three dots (⋮) in the top right and select New APN.
Enter Details:
- Name: globaldata
- APN: globaldata
Save: Tap the three dots (⋮) and select Save. Then, ensure the radio button next to your new globaldata profile is selected.
Confirm Other Settings:
- Data Roaming: Set to ON.
- Preferred Network Type: Set to 4G or LTE.
Reboot: Restart your device.

The "Roaming" Rule: Because ONSIM uses a specialized global network profile, your phone often thinks it is "roaming" even when you are in the UK. You must enable Data Roaming in your phone settings for the data to work.
Case Sensitivity: Ensure "globaldata" is written in all lowercase letters with no spaces.
New Handsets: If you swap your SIM card into a different phone, you will likely need to repeat this process as APN settings are stored on the device, not the SIM.

If you have any questions or need assistance, our team is here to help.

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