When Samsung pushed the official Android 7.0 Nougat update, they also updated the . This means that once you are on certain Nougat builds, you cannot downgrade to older, easily rootable versions of Lollipop or Marshmallow. Prerequisites
: Developers occasionally discovered "Eng Boot" (Engineering) files—exclusive, leaked firmware intended for factory testing. By flashing these via g925a root 70 exclusive
Samsung devices utilize a hardware fuse (e-Fuse) system known as . When the device boots, the primary bootloader checks the binary signature of the operating system. When Samsung pushed the official Android 7