| Source | Best for | Risk level | |--------|----------|-------------| | | Custom English/Russian firmware & unlock tools | Low (with antivirus) | | Huawei Hua (华域通信 blog) | Original CH/EN stock firmware backups | Low | | GitHub – M654_unlock | Open-source flashing scripts | Very low | | Telegram @M654Firmware | Live links for latest builds | Medium (scan files) |

For complete hard-bricks where even TFTP fails. You need a USB-to-TTL adapter (3.3V logic).

| Item | Specification | |------|----------------| | Host OS | Windows 7/10/11 (32/64‑bit) | | Driver | China Mobile USB Driver v2.0.6 or later | | Flashing tool | QPST, DFS, or vendor‑provided DownloadTool.exe | | Firmware file | M654_Update.bin or M654_package.zip | | Backup required | Yes – original NV items / QCN file |

: Restoring a "dead" phone caused by failed software modifications.

Before downloading firmware, confirm your device matches these core specifications to avoid using incompatible files: : China Mobile A5 (M654) Processor : Spreadtrum SC9850K. Operating System : YunOS 5.1.3 (based on Android). Memory : 1GB or 2GB RAM. Storage : 8GB, 16GB, or 32GB internal storage. Display : 5.45-inch HD+ (1440 x 720 pixels) IPS LCD. Why You Need China Mobile M654 Firmware