Hello, according to the description, it is recommended that you do the following:

1. When the Samsung logo appears when the phone is turned on, press and hold the virtual menu key in the lower left corner of the phone screen to see if you can enter Safe mode, if you can enter it, it is recommended that you delete the recently downloaded third-party software and try it

2. If the problem persists, it is recommended that you bring your purchase invoice, repair card, and mobile phone to the local Samsung service station. detection. Detailed query of service station address:?

/support/location/supportServiceLocation.do?page=SERVICE.LOCATION&cid=cn_ppc_support_service_repairnet_120522