i bought it from China, i use wad manager 1.4 and install IOS36-v3094, IOS15-v266 and IOS50-64-v4889, LU64fix gave me a blackscreen, also IOS15-v257 i couldnt installed, says ret -1017, hackmii v3 freeze, i still cant downgrade firmware using Anyregion or Winakoko dwgrade 1.11, so still dont...