Power and volume key schematic for the Samsung SM-A10, packaged as a 2.25 MB PDF. It shows how the on/off and volume buttons connect through the side-key flex to the processor and power management chip. Handy for phones that will not wake from the power key, have unresponsive volume keys or get stuck in boot menus because a key is held. Measure the key lines for correct idle voltage and shorts. Opens in any PDF reader. Check the device is an SM-A10 first.
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)