Insert the USB cable directly into a rear motherboard port (avoid USB hubs).
MT6789 Auth Bypass Better: Methods and Tools for MediaTek V6 Architecture mt6789 auth bypass better
The MT6789 authentication bypass has significant implications for device manufacturers, users, and the broader cybersecurity community. Some potential risks include: Insert the USB cable directly into a rear
Low-voltage fault injection on the PMIC rails during SHA256 compare in Preloader. Causes signature check to skip → Preloader enters download mode with partial auth disabled. Requires hardware trigger (e.g., Teensy 4.0 + MOSFETs), but works on many MT6789 devices where fault countermeasures are poorly implemented. Causes signature check to skip → Preloader enters
The "better" way to handle MT6789 auth bypass isn't just about finding a one-click button; it’s about using and chip-specific payloads . As MediaTek patches these vulnerabilities in newer security updates, staying updated with the latest GitHub repositories for MTK security is essential for any successful repair or modification.
During normal operation, the preloader initializes USB, waits for a 32-byte authentication token signed by the authorized OEM key, then enables flash access. Due to improper locking of the authentication state variable, sending a crafted WRITE_REG USB command (request type 0xC0, value 0x1337) at cycle 2.8–3.2 seconds after boot resets the authentication flag to true before the signature check completes.
What is your (unbricking, removing a lock screen, or pulling a backup)?