1. If there is a black screen all the time: press and hold the power button 10 seconds or more, and then try to turn it on and off. If the fault still exists, it is recommended to send the mobile phone to the nearest Samsung service center for testing.
2. If there is a black screen sometimes, it is recommended to uninstall the third-party plug-in program running before the black screen. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore factory settings (Settings-Privacy/Reset-Restore Factory Settings).
If the problem still exists, please bring the purchase invoice, maintenance card and machine to Samsung Service Center, and the engineer will check and handle the machine.
Function introduction of C5000:
All-metal integrated design, 6.7mm ultra-thin fuselage integrated molding.
U-sound, using U-sound technology, can restore online and local music in real time.
Social camera, the camera has more than 50 kinds of creative watermarks, at the same time, it has a160 thousand pixel rear camera and a large aperture of F 1.9.
Brand-new UI, the theme interface of the main UI corresponds to the color of the metal body, and the information in the notification bar is short, which simplifies the screen locking interface.
The red envelope reminds you to speed up the red envelope grabbing, and the system will speed up the red envelope grabbing, and give eye-catching red envelope tips for you to participate in time.
Samsung Safe Space, an independent My Knox Samsung Safe Space, supports double-open applications and protects personal and business information more safely.