Samsung SM-A10 backlight circuit schematic, 2.25 MB PDF. It covers the LCD light driver, its boost inductor and diode, and the output lines feeding the display connector. Refer to it when the image is faintly visible under a torch but the screen stays dark, measuring the boost output voltage and checking the coil and diode for faults. Opens in any PDF reader. Make sure the phone is really the SM-A10 before trusting the part designators shown here.
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 @phoneSchematics. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)