If your Halo eSIM shows “No Service” or isn’t connecting to a network after you arrive at your destination, work through these checks in order. Most connection issues resolve within the first three steps.
Quick checks
1. Find your eSIM line by its label
Your eSIM line will not be called Halo unless you named it that when you installed it. Look for it by the label it was given, and make sure it is turned on.
iPhone
Open Settings > Mobile Service (Mobile Data on older iOS). Your iPhone labels the line with whatever was picked at install: Secondary, Travel, or a custom label. Tap that line and confirm Turn On This Line is enabled.
Samsung
Open Settings > Connections > SIM manager. The eSIM is usually listed by its network name or as eSIM. Make sure it is toggled on.
Pixel/Android
Open Settings > Network and internet > SIMs. The eSIM is usually listed by its network name. Tap it and confirm Use SIM is toggled on.
2. Turn Data Roaming on for that line
Data roaming must be on for your eSIM line. This does not cause extra charges, because your plan already covers your destination. Leave data roaming off on your home line.
iPhone
Open Settings > Mobile Service (Mobile Data on older iOS). Tap your eSIM line. Turn on Data Roaming.
Samsung
Open Settings > Connections > SIM manager. Tap your eSIM. Turn on Data roaming.
Pixel/Android
Open Settings > Network and internet > SIMs. Tap your eSIM. Turn on Roaming.
Xiaomi
Open Settings > Mobile networks (SIM cards and mobile networks on MIUI). Tap your eSIM. Turn on Data roaming.
3. If it is still offline, pick the network by hand
Your plan runs on a particular local network, and the phone does not always find it on its own. Your eSIM page (the Manage my eSIM link in your delivery email) names that network under Not connecting? Try this. If no network is named there, pick one from the list and give it a minute to connect.
iPhone
Open Settings > Mobile Service (Mobile Data on older iOS). Tap your eSIM line. Tap Network Selection. Turn off Automatic. Wait for the list of available networks to appear, then select your plan’s network.
Samsung
Open Settings > Connections > Mobile networks. Turn off Auto select. Select your plan’s network from the list.
Pixel/Android
Open Settings > Network and internet > SIMs. Tap your eSIM. Tap Preferred network type, then tap Choose network. Turn off Auto select and choose your plan’s network from the list.
4. Set your eSIM as your data line
Your device may still be using your primary SIM for mobile data.
iPhone
Open Settings > Mobile Service (Mobile Data on older iOS) > Mobile Data. Select your eSIM line. Turn off Allow Mobile Data Switching.
Samsung
Open Settings > Connections > SIM manager > Mobile data. Select your eSIM.
Pixel/Android
Open Settings > Network and internet > SIMs. Tap your eSIM and toggle Mobile data on.
Xiaomi
Open Settings > Mobile networks (SIM cards and mobile networks on MIUI). Under Mobile data, or Data SIM, choose your eSIM. If the line has signal but data still will not load, some Xiaomi phones need the APN set by hand: see the APN steps in Install your Halo eSIM on Xiaomi.
5. Restart your device
Power your device off completely, wait 10 seconds, then power it back on. This forces your device to search for available networks and often resolves connection issues after landing.
6. Check you are in a covered country
Confirm your current location is covered by your Halo data plan. Open your order confirmation email to see the countries included in your plan.
If you purchased a regional plan (e.g. Europe, Southeast Asia), check that the specific country you are in is listed.
7. Reset network settings
If none of the above steps resolve the issue, reset your network settings. This clears saved Wi-Fi passwords and Bluetooth connections but does not remove your eSIM profiles.
After resetting, reconnect to Wi-Fi and check whether your eSIM connects.
iPhone
Open Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
Samsung
Open Settings > General management > Reset > Reset network settings.
Pixel/Android
Open Settings > System > Reset options > Reset Wi-Fi, mobile and Bluetooth.
What to send Halo support
If the steps above did not resolve your issue, contact us at support@haloesim.com with:
- Your Halo order number (starts with HALO-)
- Your device model and operating system version (e.g. iPhone 15 Pro, iOS 18.2)
- The country you are currently in
- A screenshot of your mobile data or SIM settings showing your eSIM line and its status
- Whether data roaming is turned on for your eSIM line
- The error message displayed, if any