Cracked versions of Z3X or Miracle Box almost always contain hidden keyloggers or crypto-miners that will infect your computer.
: A staple in the repair industry, this tool allows for flashing, unlocking, and repairing IMEI by writing original data back to the device. samsung imei repair tool
On Samsung phones (especially Exynos models), flashing unofficial firmware or corrupt EFS partitions (Encrypted File System) can wipe your IMEI. When this happens, your phone shows: Cracked versions of Z3X or Miracle Box almost