»Default user code :1122, 3344, 1234, 5678
»Engineermode :*#110*01#
»Factory mode :*#987#
»Enable COM port :*#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
»Restore factory settings :*#987*99#
»LCD contrast :*#369#
»Software version :*#800#
»Software version :*#900#
»Set default language :*#0000#
»Set English language :*#0044#
»Set English language (new firmware) :*#001#
»SendSefault user code :1122, 3344, 1234, 5678.
