Product Features System: Android 9.1 ROM: 128G RAM:4G Screen type: 6.3inches Touch screen: capacitive support Resolution: Front 800MA makes you more beautiful beautiful Network: Dual SIM Card 4G LTE Camera type: Two rear cameras One front camera Pixel camera: Front camera: 8.0 MP Rear camera: 16.0 MP Software: Play Store, Air, Distance, Gesture, SmartWake, Calculator, Calendar, Alarm, Camera, Gallery Latest features: Unlocking fingerprints and faces. Additional features of the product: GPS: Yes, built-in, also supports A-GPS, supports voice navigation (navigation program not included) WiFi: Support for 802.11 b / g / n wireless technology, wireless access point support Bluetooth: Support for Bluetooth 2.0 Sensor: Light sensor, Acceleration sensor, Direction sensor Message: MMS, SMS, Email, Gmail Audio output port: 3.5mm USB port: Micro-USB 2.0 Other features: Play Store, Air Distance Gesture, Smart Wake, Calculator, Calendar, Alarm, Camera Gallery, Video recorder, audio player, sound recorder, FM radio, e-mail, Gmail, flashlight, etc. Language: Default: English, the software should include the following languages: Indonesian, Malay, Czech, Norwegian, Danish, German (Germany, Liechtenstein, Switzerland, Austria), Estonian, Spanish (Spain, Mexico), Filipino, French (Belgium, French, Swiss), Croatian, Italian (Italian, Swiss), Latvian, Lithuanian, Russian, Hungarian, Dutch, Polish, Portuguese (Brazil, Portuguese), Roman , Albanian, Slovak, Finnish, Swedish, Turkish, Greek, Bulgarian, Serbian, Ukrainian, Arabic, Thai, Simplified Chinese, Traditional Chinese, Japanese, Korean, Bengali, Lao, Myanmar Language, Cambodian, Persian, English (Australia, Canada, Italy, Ireland, New Zealand, Singapore, South Africa, United Kingdom, United States) Package contents: 1 x smartphone 1 x charger 1 x USB 1 x 3.5 mm earphone 1 x user manual Ten problems and solutions often encountered by mobile phones Question 1: What happened to the phone? The smart phone is quite a micro comput