According to your description, if the phone can't dial, it is recommended to follow the following steps:

1. Restart the phone.

2. Standby Page-Applications-Settings-Application Manager-All-Mobile-Clear Data.

3. Uninstall the recently installed third-party calling software to eliminate software compatibility problems. Operation: Open Settings-Application Manager-Download-Find Software-Uninstall.

4. Back up the data in the mobile phone (contacts, text messages, pictures, etc.). ), and then restore the factory settings (Settings-Reset-Restore Factory Settings).

If all the above methods are ineffective, there may be something wrong with the internal program. I suggest you take the three-guarantee certificate of your mobile phone and send it to the nearest Samsung service center for engineers to check the machine. For specific questions about the service center, please visit:

. Samsung . com/support/service locations . ASP

Samsung knows to provide you with high-quality solutions and answer your questions attentively, hoping to get your satisfactory evaluation.