Disassembly and reassembly guide for the Samsung SM-A325M, a 1021 KB PDF from the service manual. It walks through opening the phone step by step, including removing the back cover, screws, flex cables and the main board, then rebuilding it in reverse. Following it reduces the risk of tearing flexes or cracking the display during repair. Use it with the exploded view and part list for the same model code, and confirm the variant on the device label 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 @uzb4422. 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.