Schematic for the Samsung SM-G7102 Galaxy Grand 2, provided as a 3.10 MB PDF. The name gives the model code and marketing name but no board revision. Use it to trace power rails from the PMIC, follow the charging and USB path, check dual-SIM and display connector pinouts, and identify components on a rail that reads shorted. Any PDF reader opens it. Compare the model code under the battery with the document, since other Grand 2 variants may differ in radio and power circuitry.
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.
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How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.