What should I do if my Samsung sm-a3000 all-in-one mobile phone crashes?

If the phone freezes or freezes during use, the machine cannot be used anymore. Please try to restart the machine. If the device cannot be restarted, please send the device to a Samsung service center for inspection. How to restart the machine: Please press and hold the power button and the volume down button at the same time for more than 7 seconds to restart the device. If your mobile phone often crashes during use, we recommend the following: 1. If there is a crash problem when using software, please check whether there is a new version of the software pushed, and if so, update the software version. If you downloaded the software yourself, it is recommended to uninstall the software and reinstall it or download another version of the software to try. 2. Check whether there are system updates pushed to the phone and upgrade the phone to the latest system version. 3. If it doesn’t work, please back up the data on your phone and restore the machine to factory settings. If the problem still occurs after the above operations, please bring your purchase invoice, repair card and machine to a Samsung service center for inspection.