Schematic diagrqm Samsung

http://000777software.blogspot.in/2016/07/all-mobile-schematics-diagram-datasheet.html

https://www.mobilephone-manualsonline.com/samsung/samsung-pdf-schematics-and-diagrams/

http://www.diagram.com.ua/english/download/

http://www.diagram.com.ua/english/library/diagrams-mobiles-samsung/

http://www.chip-level.com/2017/09/all-mobile-phone-circuit-board-diagram.html