Lenovo A3300 archive in RAR format, 1.42 MB. The name gives only the model and no detail about the contents, version or hardware variant. Its small size points to service files such as a partial firmware, a repair patch or documentation rather than a complete ROM, so unpack it and review before use. Before flashing anything to the device, confirm the model variant and make a backup of the current firmware or key partitions so the unit can be restored if the files prove incompatible.
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 @Schematics_Mobile. Enginerys does not host this file.
All sources (20)
The same file was posted more than once. If one link is dead, try the next.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.