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- Samsung Metro 312 SM-B312E schematics -phonelumi.com-Schematic · 3.90 MB · 22 Oct 2022Schematic rar—3.90 MB
- Samsung Metro 312 SM-B312E @phoneschematic schematicsSchematic · 4.18 MB · 1 Jun 2023Schematic zip—4.18 MB
- Samsung Metro 312 SM B312EH
Schematic for the Samsung Metro 312, model SM-B312EH, a dual-SIM keypad phone, delivered as a 3.46 MB PDF. No board revision is given.
Schematic · 3.46 MB · 20 Oct 2017Schematic pdf—3.46 MB