As long as it is a short message, Samsung mobile phones will receive it repeatedly. What should I do?

According to your description, I suggest you try the following methods:

1. Take out the SIM card, clean the SIM card chip with an eraser, and then insert the SIM card into the mobile phone to see if the signal of the machine is still unstable.

2. Change the network mode: Settings-More-Mobile Network-Network Mode-gsm only.

3. It is suggested to change another SIM card, or try to change a location.

4. If the signal is still bad through the above methods, it is recommended that you restore the machine to the factory settings, as follows: Settings-Privacy-Restore the factory settings (however, since all the data in the mobile phone will be lost when the machine is restored to the factory settings, it is recommended that you back up important data such as phone books, videos and pictures in advance).

5. At present, GT-I9 100 can be upgraded to version 4. 1.2. It is recommended that you try to upgrade the firmware.

If there are still problems through the above methods, please bring the purchase invoice, maintenance card and machine to Samsung service center, and the engineer will check and deal with the machine. Please click the following link to find out the specific location of Samsung Service Center:.

If you need help, please visit support.samsung.com.cn, and official website will provide you with multi-channel service support!