What changes
Dataset 720C of module 5F (MIB3): slot zh_HK → ru_RU, CRC32 recalculated. The MMI menus and the cluster switch to Russian instead of Cantonese.
Details
The MMI menus and the cluster become Russian instead of Cantonese. The first Dashboard screen (Chinese), the main menu (English), voice control and SMS stay as they are — the Asian firmware has no Russian resources for them. The same map as on the A3 8Y. For a Chinese-built Q3 F3 with MIB3 (MHI3_AS_AU firmware, e.g. P3611): owners have done exactly this — several confirmations on 2022–2023 Q3s; on a Japanese Q3 (P3801) the whole interface became Russian. If the dataset has no slot with that code (European or US firmware), Odyx refuses before writing. Module 5F is SFD-protected — a token is required; model year 2025–2026 cars (P4318) have SFD2, and a 'driving prohibited' fault was reported after russification — do not apply there. The MMI restarts after writing; archived faults may appear in modules 17 and 75. Rollback: write the original dataset from the backup.