Repair guide archive for the Oppo A9 2020 covering no network or weak signal faults, 352 KB in RAR format. Such solution sheets usually show the RF section with marked paths through the antenna switch, power amplifier and transceiver, plus the components to check or replace. Use it with a multimeter and microscope to test continuity along the signal path and spot missing or damaged parts. Make sure the phone model and board version match before following component locations, as variants can differ.
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 (16)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @SMART_PHONE_SCHEMATICS | 14 Mar 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @canalesquematicos | 28 Sept 2022 | Open file on RM Schematics |
| @canalesquematicos | 9 Nov 2022 | Open file on RM Schematics |
| @uzb4422 | 13 Feb 2023 | Open file on RM Schematics |
| @uzb4422 | 16 Feb 2023 | Open file on RM Schematics |
| @uzb4422 | 18 Feb 2023 | Open file on RM Schematics |
| @uzb4422 | 18 Feb 2023 | Open file on RM Schematics |
| @GENERAL_SMART_PHONE_SCHEMATICS | 11 Nov 2024 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @cyberlanelectonik | 2 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 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.