The log shows that the tool established a basic connection, but as soon as it attempted to enter the real BROM environment, the chip responded with an access‑denied status. This is not a communication glitch; it is a deliberate, hardware‑enforced security lock.
The Boot ROM (BROM) is the first piece of code executed by the processor upon power-up. It is read-only and resides in the hardware itself. Its primary responsibility is to establish a "Root of Trust" by verifying the digital signature of the next boot stage. If the verification fails or if a user attempts to manually intercept the boot process for firmware flashing, the BROM can provide a specialized communication mode—often called "BROM Mode"—to allow authorized recovery. Decoding the 0x146 Error brom disabled by efuse 0x146
Since the BROM interface is disabled, you must communicate with the device through the . The Preloader is the second-stage bootloader stored in the device's flash storage (eMMC or UFS). The log shows that the tool established a