Secret codes

Here are some active secret codes.

*#08#          for activate bluetooth...

*#09#          for activate bluetooth & search device...

*#03#          for unique code.... 

*#1234#      for software version

*#0228#      for battery info..... 

                                                                                                             

Type *#8999*28346#  after it  select "MAXIN9877 IN GAIN" after that in MP3 box type "10" now save  after that you can play any mp3 song you found that the volume is increased......

                                    Thanks

NOTE: DO it on you risk.