Step 1: Check Carrier SupportBefore traveling, confirm that your mobile carrier supports international roaming for your plan. Some carriers may require you to enable a specific roaming package or add-on. You can check this via the carrier’s website, customer support, or app to avoid unexpected charges while abroad. Step 2: Open iPhone SettingsUnlock your iPhone and go to the home screen. Tap the Settings app, which looks like a grey gear icon. Settings is where you control your network, mobile data, and roaming options. Make sure your phone has an active SIM card and mobile plan before proceeding to the next step. Step 3: Go to Mobile Data OptionsInside Settings, tap on Mobile Data or Cellular depending on your iOS version. Next, select Mobile Data Options. This section contains network settings, including data roaming. It’s important to only enable roaming if you plan to use mobile data internationally to avoid extra charges. Step 4: Enable Data RoamingToggle the Data Roaming switch to the on position. This allows your iPhone to connect to foreign networks for calls, messages, and internet. A warning may appear about additional charges. Read it carefully. Enabling this lets your device work seamlessly in countries supported by your carrier. Step 5: Test and RestartAfter enabling roaming, restart your iPhone to ensure settings take effect. Once abroad, your iPhone should automatically connect to compatible networks. Check for the carrier name and signal bars at the top. If it doesn’t connect, manually select a network in Settings > Mobile Data > Network Selection.