An archive of repair files. Shared as “TP_ATM30_PB801_1367_720_allupgrade_aml920_android9_4G_512M_multi.rar” — a .rar file, 425 MB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tvsoftwareworld. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)