Device

• What navigation software does the mobile phone carry?
• The mobile phone automatically plays music.
• Long time for loading a desktop in the system for the first time
• How to change the preferred network type?
• NFC does not work, and is not sensitive.
• The mobile phone cannot be powered on after the unofficial version is updated or the ROOT is used.
• What are the risks of flashing or rooting?
• On the dual-card mobile phone management page, some cards do not display their local numbers.