*#110*01# - Engineer mode *#987# - Factory mode Enable COM port : *#110*01# - > Device -> Set UART -> PS Config -> UART1/115200 *#987*99# - Restore factory settings *#369# - LCD contrast *#800# - Software version *#900# - Software version *#0000# Send - Set default language *#0044# Send - Set English language *#001# Send - Set English language (new firmware) Default user code : 1122, 1212, 3344, 1234, 5678 Disclaimer: Some of these Codes may not Work, it depends on phone model! Try these Codes at Your own Risk! I'll take no any responsibility due to damage, data lost or device malfunctioning. Complaints will not be entertained. !
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