iPhone 7 logic board layout as a 364 KB boardview in .bvr format. The name gives just the model, without board number, revision or modem variant, so compare it with your board before relying on placements. Opened in a BVR-capable viewer it shows parts on both sides, lets you click a pin to highlight its net and helps locate test points. Typical uses include tracing a shorted rail from the PMIC, finding audio or charging circuit parts and identifying missing components after drop damage or previous repair attempts.
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 @GENERAL_SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
How to open a .bvr file
Text boardview from the BoardView R family of tools, seen for Lenovo, MSI and Clevo boards.