Firmware infos :

  build date               : 2017年 12月 20日 星期三 16:18:56 CST
  build description        : graceltexx-user 7.0 MMB29K G9550FXXU1APFO release-keys
  build id                 : MMB29K
  build display id         : MMB29K.G9550FXXU1APFO
  platform                 : MT6580
  mediatek version release : ALPS.L1.MP6.V2.19_HCT6580.WEG.A.L_P55
  build version            : I8006.V3.LP2.X.A.X-Y7B1220
  product brand            : samsung
  product device           : hero2qltechn
  product manufacturer     : samsung 
  product model            : SM-G9550
  os version               : 7.0 

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