Device

• Pre-installed mobile phone software will steal traffic.
• The phone runs stuttered
• Viewing Memory Space
• Can I identify a contact by entering the last four digits of the contact number on the dialer screen?
• The phone has broken sound when playing some music
• Why does the phone call intermittent on a high-speed train?
• Why is the charging of a mobile phone slow when the ambient temperature is high and the temperature rises?
• Why cannot I start the mobile phone when I start the driving mode?