To understand this error, you must first understand the relationship between the SP Flash Tool and the MediaTek Preloader.
The version of SP Flash Tool is either too old to recognize a newer chipset or too new to support legacy MTK processors. sp flash tool not support platform
Many modern MediaTek devices (Oppo, Vivo, Xiaomi, Realme) have a "Secure Boot" system. They won't allow SP Flash Tool to communicate with the platform without a specific or an Authentication File (.auth) . To understand this error, you must first understand