Samsung SM-Z130H schematics, the Tizen-based Samsung Z1, packed into a 1.02 MB zip. No board revision appears in the name, so look for it inside the drawings. Schematics for a budget handset like this help trace the battery and charging circuit, follow PMIC rails to the processor, and locate parts on the SIM, display and keypad lines. They are also used to identify components sitting on a shorted rail. Verify that the main board marking on your unit matches the document before measuring.
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 @esquematicosparatodos. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.