Schematic in PDF for the Apple iPhone X logic board 820-00863, Qualcomm modem variant, archived in a 3.08 MB RAR. Apple uses 820- numbers for logic boards, and the iPhone X shipped with either Qualcomm or Intel baseband, so the radio section differs between versions. A technician uses this diagram to trace power rails from the PMU, check line values around charging and display circuits, and diagnose no-boot faults. Confirm the board carries a Qualcomm modem before using baseband pages.
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 @SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @SMART_PHONE_SCHEMATICS | 18 Apr 2023 | Open file on RM Schematics |
| @canalesquematicos | 30 Apr 2023 | Open file on RM Schematics |
| @GENERAL_SMART_PHONE_SCHEMATICS | 11 Nov 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 2 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.