"You never need to flash the Preloader; just flash the boot image." Fact: If the Preloader is corrupt, the device cannot even enter fastboot. Flashing boot or recovery will fail because the USB stack in the Preloader is broken.
: Open SP Flash Tool, click "Choose" next to the Scatter-loading file, and select the .txt scatter file that came with your firmware.
It initializes the most fundamental hardware—the Power Management Integrated Circuit (PMIC) and the DRAM (RAM). Without this, the phone has no temporary memory to load the operating system.
The k62v1 designation is critical. It signifies the specific SoC (System on Chip) layout. If a user mistakenly tries to flash a preloader meant for k61v1 onto a k62v1 device, the hardware addresses for the RAM will be wrong, leading to a "hard brick"—the phone will not turn on, not even to a logo, because the very first instruction set was incorrect. The Fate of the Preloader
The "64" in the filename indicates support for 64-bit architecture , while "BSP" stands for Board Support Package , meaning it contains the low-level drivers specifically tailored for this device's motherboard.