RAR archive of about 1 MB holding schematic material for the Lenovo A5500 tablet, as the schem token indicates. The exact contents are not listed, so extract it with WinRAR or 7-Zip and check what is inside, typically PDF circuit diagrams and possibly layout pages. Schematics help trace power rails, charging and display circuits and locate the parts on a shorted line. Before relying on them, compare the board number and revision printed on the tablet PCB with the documents.
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 (21)
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.