Flash Mediatek Devices with SP Tool | PDF | Booting - Scribd
: Flashing a ROM intended for a different device or a different hardware revision of the same model (e.g., different RAM vendor like Samsung vs. Micron). sp flash tool error status ext ram exception
The preloader is the first code executed on a MediaTek device. If the scatter file points to an incompatible preloader binary (e.g., a preloader from a different device variant or Android version), the RAM fails to initialize. Flash Mediatek Devices with SP Tool | PDF
Newer MTK chips (Dimensity, Helio G-series) use a different memory map. Using an old SP Flash Tool (v5.x) or a scatter file formatted for Android 8/9 on an Android 11/12 device will cause this exception. sp flash tool error status ext ram exception