What's the matter with a small key shape at the top of the mobile phone screen, Samsung?

According to your description, I suggest you: 1, whether the SMS or MMS was sent successfully.

2. Pull down the curtain menu at the top to see if there is a reminder.

3. Because the physical machine can't be actually detected in the network. I can't know the specific problem of your mobile phone. In order to better understand and solve the problems of your mobile phone, it is recommended that you send your mobile phone to the nearest Samsung service center for testing. The service center will determine the specific problems of your mobile phone according to the test results and further handle them.

Please visit the address and contact information of the service center:

. 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.