If you own a budget or entry-level Android tablet, smart display, or POS system, you have likely encountered the chipset designation SP7731E. Specifically, the variant labeled 1H10 refers to a particular hardware revision and board configuration used by manufacturers like Alcatel, Lenovo, Hyundai, and various white-label OEMs.
The term "native firmware 2021" refers to the original stock ROM (Read-Only Memory) released in 2021 for devices powered by the Unisoc (formerly Spreadtrum) SC7731E processor. Unlike custom ROMs or vendor-skinned updates, native firmware means the clean, unmodified operating system built by the chipset manufacturer or original device maker—without bloatware, carrier modifications, or third-party add-ons. sp7731e 1h10 native firmware 2021
Why is this specific version still relevant in 2025? Many users seek the 2021 native firmware to: If you own a budget or entry-level Android
This article provides a definitive resource for locating, verifying, and flashing the SP7731E 1H10 native firmware from 2021. This article provides a definitive resource for locating,
The safest method for native firmware is SP Flash Tool. ResearchDownload is also used for .PAC files, but SPFT gives more control.
If you are a registered OEM, Unisoc provides direct access to reference firmwares, but this is not available to the general public.
After extracting the pac file (Unisoc’s proprietary upgrade format), the partition layout reveals a struggle between performance and storage:
