进入应用桌面打开计算器输入 (+30012012732+ 进入Factory Mode
On android 3.X version (+32286798378+ left bracket, plus, 3,2,2,8,6,7,9,8,3,7,8, plus
On android 4.X version (+30012012732+ left bracket, plus, 3,0,0,1,2,0,1,2,7,3,2, plus
Android 4.X 示例:
工厂模式代码一览（供参考）
*#06# – To check IMEI No.
*#9090# – Diagnostic Configuration
*#1234# – to check software version of phone.
*#272*IMEI# – Reset User data + Change Sales Code
*#12580*369# – to check software and hardware information.
*#0228# – Battery status (ADC, RSSI reading)
*2767*3855# – Full factory reset (Don’t dial it does not ask you to confirm unless you have problem)
*#0*# – This Code shows Screen Test Menu (LCD Test Menu) Hidden Menu
*#7353# – Self Test Mode (2nd Hidden Menu)
*#34971539# Camera firmware check/update
*#2263# Service Mode - Baseband selection
*#9900# SysDump
*#0011# Service Mode - Radio parameters
*#0808# USB Settings
*#2222# Service Mode - FTA HW Version
*#1111# Service Mode - FTA SW Version