Prepare a Micro SD card, put at least two MP3 music named as test.mid and test.mp3 at my music catalogue.
Turn on the phone, input "*#6288*#" to get into a MAT test interface and press the left soft key to start auto test:
•Press” 1 ”Key, Test vibrator start and press 1 key stop.
•Press”2”key,Play melody and play”2”key stop。
•Press”3” key,Play mp3(test.mp3)。
• Press”4” key,Stop mp3。
• Press”5” key,No.5 light on LCD。
• Press”6” key,No.6 light on LCD
• Press”7” key,Play midi ( test. mid ) and play”7”key stop。
• Press”8” key,White all LCD。
• Press”9” key,Red all LCD。
• Press”0” key,Green all LCD。
• Press”*” key,Blue all LCD。
• Press”#” key,Black all LCD。
• Press “side up” key,No.5 light on LCD。
• Press “side down” key,No.6 light on LCD。
• Press “Navy left” key,The“Left”light on LCD。
• Press “Navy Right” key,The“Right”light on LCD。
• Press “Navy UP” key,The“UP”light on LCD。
• Press “Navy Down” key, The“Down”light on LCD。
• Press “OK”key,The“OK”light on LCD。
• Press “Send” key,The“Send”light on LCD。
• Press “End“ key,The“End”light on LCD。
• Press “SKR” key,The“SKR”light on LCD。
• Press Left key,Finished the keyboard test need to do the function