However, flashing firmware on these devices is not like the old days of Qualcomm’s EDL or older MediaTek MT67xx series. The MT6833 requires specialized tools that support , V-AB partitions , and SP Flash Tool v5.2128+ .
(eMMC dead, no recovery).
Always keep a backup of your device’s NVRAM ( nvdata , nvram , protect1/2 ) using the portable tool’s Read Back feature before any flash operation. Losing these partitions means losing IMEI, Wi-Fi MAC, and Bluetooth address. mt6833 flash tool portable