What changes
Module 5F (MIB3): object 0E38, byte 0, bits 4 and 5 = 1. The navigation receiver uses GLONASS and Galileo together with GPS.
Details
GNSS receiver configuration from the MIB3 firmware adaptation table (bit 4 — GLONASS, bit 5 — Galileo); usually already on in European cars, off in cars from China. The other bits of the object are left unchanged. MIB3 only (from model year 2021): the MIB2+ (MH2p, 2019–2020) has no such object, and Odyx refuses before writing. If module 5F is SFD-protected (Q3 F3 from model year 2021), Odyx asks for a token; some Chinese MIB3 units have no SFD — then no token is needed. The MMI restarts after writing. Rollback: write the object backup from the history.