Connectivity issues are typically caused by a variety of reasons when traveling abroad.
You may experience the following after inserting your SIM card into the device.
- The phone displays only the carrier name, such as “CHN-UNICOM,” but does not display 4G, LTE, or 5G.
- “No SIM card” is displayed on your phone.
If you experience either of the above two situations, please make sure that you meet the following usage requirements.
- Make sure your SIM card is activated — you will receive a confirmation email when the SIM card is activated.
- Ensure your device is unlocked — our SIM cards can’t be used on locked devices.
Then, follow the steps below to resolve the issue:
1. Remove the SIM card and reinsert it into the device.
2. If the issue persists, set the Access Point Name (APN) on your device.
Set up APN on iPhone.
1. Go to Settings–Cellular.
2. ①Enable Cellular Data, and then ②tap on Cellular Data Options.
3. ①Enable Data Roaming, and then ②tap on Cellular Data Network.
4. Tap and input an APN. (The APN entered here depends on the carrier, China Unicom APN is 3gnet or UNIM2M.GZM2MAPN, China Mobile APN is cmnet or cmiot, China Telecom APN is ctnet.)
Done!
Set up APN on Android (The steps for setting up the APN may vary for different Android devices; the following is for reference only.)
1. Go to Settings – SIM card and network.
2. Enable ①Mobile Data, and then ②go to carrier. (The carrier should be China Unicom/China Mobile/China Telecom.)
3. ①Enable Data roaming, and then ②go to APN.
4. Tap on New APN.
5. ①Enter a name, such as 123, ②input an APN (The APN entered here depends on the carrier, China Unicom APN is 3gnet or UNIM2M.GZM2MAPN, China Mobile APN is cmnet or cmiot, China Telecom APN is ctnet.), ③tap Save.
Done!
3. If setting APN still doesn’t solve the issue, reset the network on your device.
Please note that all features related to the network will be restored to default, including Wi-Fi, mobile data and Bluetooth.
Reset the network on the iPhone.
- Go to Settings.
- Tap General.
- Scroll down to the bottom, tap Transfer or Reset iPhone.
- Tap Reset.
- Choose and tap Reset Network Settings.
- Enter your iPhone passcode.
Reset the network on Android. (The steps for resetting the network vary depending on the model of your Android device; the following information is for reference purposes only.)
- Go to Settings.
- Tap System.
- Tap Reset Options.
- Choose and tap Reset Wi-Fi, mobile & Bluetooth.
- Enter your phone passcode.
- Tap RESET SETTINGS.
If you have followed the steps above and are still experiencing connectivity issues, please contact us so we can assist you.
