iPhone Mobile Setting - Roaming

1. Go to your iPhone Settings, tap “Cellular” (or “Mobile Data”, depending on your region). 

2. If your phone has two SIM cards, select the one used for “Data Roaming”. 

3. Tap “Data Roaming” and switch it on.

iPhone Mobile Setting - Manually Select a Network Provider

1. Open Settings on your iPhone. 

2. Tap “Cellular” (or “Mobile Data”, depending on your region). If your phone uses dual SIM cards, select the SIM used for data roaming. 

3. Tap Network Selection, turn off “Automatic”, then choose the desired local network provider. Make sure Data Roaming is enabled.

iPhone Mobile Setting - Check the APN Settings (Yellow mark)

1. Open Settings on your iPhone and tap “Cellular” (or “Mobile Data”, depending on your region). If your phone uses dual SIM cards, select the SIM used for data roaming, then tap “Cellular Data Network”. 

2. Ensure the “APN” is set to “cmlink”. If not, you can manually update it.

iPhone Mobile Setting – Roaming

1. Go to your iPhone Settings, tap Cellular (or Mobile Data, depending on your region). 

2. If your phone has two SIM cards, select the one used for Data Roaming. 

3. Tap Data Roaming and switch it on.

iPhone Mobile Setting – Manually Select a Network Provider

1. Open Settings on your iPhone. 

2. Tap Cellular (or Mobile Data, depending on your region). If your phone uses dual SIM cards, select the SIM used for data roaming. 

3. Tap Network Selection, turn off Automatic, then choose the desired local network provider. Make sure Data Roaming is enabled.

iPhone Mobile Setting – Check the APN Settings (Yellow mark)

1. Open Settings on your iPhone and tap Cellular (or Mobile Data, depending on your region). If your phone uses dual SIM cards, select the SIM used for data roaming, then tap Cellular Data Network. 

2. Ensure the APN is set to cmlink. If not, you can manually update it.