Here are the download links of Nougat ROM updates for Infinix Zero 4 (X555), Note 3 (X601), Note 3 Pro (X601), Zero 4 Plus (X602), Hot S (X521), S2 (X522), Hot 4 (X557) & Hot 4 Pro (X556) in SP Flash tool or Tcard (SD card) format for those that want to update from Marshmallow to Nougat