Sp7731e+1h10+native+firmware+link

You might see "LineageOS 14.1 for SC7731E" or "Android 12 GSI". Do not install them on a 1H10 board.

Since 1H10 is a specific board, your tablet likely came from a small ODM (Original Design Manufacturer). Search your tablet's "About Tablet" -> "Build Number" before it bricked. sp7731e+1h10+native+firmware+link

Once you have found a valid SP7731E 1H10 Native Firmware Link and downloaded the .pac or .zip file, you must flash it using Spreadtrum Research Download Tool (aka UpgradeDownload.exe). You cannot use SP Flash Tool (that is for Mediatek). You might see "LineageOS 14