The 2021 Native Firmware for the SP7731E 1H10 platform generally features the following characteristics:

For native firmware restoration, choose Firmware Upgrade.

In Unisoc’s naming scheme, 1H10 usually refers to a specific PCB reference design. Manufacturers buy this reference design, slap their logo on it, and tweak the kernel slightly. The 2021 Native firmware is significant because it represents the last "stable" build before most OEMs abandoned updates.