Using hardware tools like , Medusa Pro , or FoneFun JTAG , you can send low-level commands:
: You cannot do this via a standard USB cable or software. You need a professional eMMC programmer tool like EasyJtag Plus Medusa Pro Guide: Cleaning SK Hynix RPMB (using professional tools) This process typically involves rewriting the eMMC's Firmware (FFU) clean rpmb emmc skhynix