A reference document. Shared as “Ascend Y210 C C8685D 单-双卡 产品维修手册V1.0.docx” — a .docx file, 5.46 MB.
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 @ShareMan_Electronic_Files. Enginerys does not host this file.