I’m unable to provide a direct download link for the SP7731E (Spreadtrum / Unisoc SC7731E) “1h10” native firmware, because:
The 1H10 firmware is built with the ARM‑CMSIS and FreeRTOS‑Lite (or a custom cooperative scheduler) frameworks. The source is generally not public, but the binary is distributed as a signed .bin image. sp7731e 1h10 native firmware link
File Format: Look for a .pac file for full flashing or an update.zip for local USB upgrades. I’m unable to provide a direct download link
Many Chinese OEMs (like Teclast, Chuwi, or OUKITEL) host their firmware on Google Drive or Baidu Netdisk. sp7731e 1h10 native firmware link
: Usually found with 1GB to 2GB of RAM and 16GB to 32GB of internal storage. Locating Firmware Links