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.
Some forum users suggest that "Format All + Download" fixes RAM exceptions. This erases the NVRAM (IMEI numbers) and security partitions. Use only as a last resort. sp flash tool error status ext ram exception
You may be attempting to flash firmware intended for a different device model or a different hardware revision. Initialization Failure: The preloader is the first code executed on