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Use a pair of metal tweezers to short-circuit the Test Point to the shield of the motherboard.

When you power on a MediaTek smartphone, the very first piece of code that runs is not from the main flash storage. It comes from a tiny, read‑only memory built into the silicon itself: the Boot ROM, abbreviated as or BootROM . This initial code initialises the most basic hardware (clocks, memory controller) and then looks for the next piece of software, normally the Preloader , which then loads the main bootloader and finally the Android system. brom disabled by efuse 0x146