Here is the latest OBDSTAR official FAQs about post-2020 encrypted BMW B48, B57, and B58 engine control modules bench unlocking using X300 Classic G3 (Key Master G3), DC706 ECU Tool, and ECU Master.
1.Question: Can I upload pre-made performance tunes via OBD once an MG1CS201 or MG1CS024 ECU (B58/S58 engines) is unlocked?
Answer: No, OBD flashing is not supported. This software release focuses exclusively on bench-level access, enabling non-destructive unlocking, data extraction, and file writing directly via pinout wiring.
2.Question: Will OBDSTAR launch a dedicated solder-free connector to make unlocking easier?
Answer: There are no plans for a dedicated adapter. Clean, non-invasive bench unlocking is currently limited to BMW units. Engine computers from other carmakers still require removing the outer cover and desoldering board resistors, so a universal plug-and-play tool is not possible.
3.Question: Is it possible to unlock, read, or write Indian-spec MD1 units equipped with the TC375 microcontroller?
Answer: Not at this time. Chip-level unlocking is presently supported only on MD1 and MG1 ECUs built around TC298 and TC2989 processors.
4.Question: Does this update support Bosch MD1 control units produced after June 2020?
Answer: Yes. The update covers most locked post-June 2020 MD1 modules running TC29X series microchips (including MD1CS012 and MD1CS003). However, MD1CS016 units using the TC399 processor remain unsupported.
5.Question: Is it possible to flash sectors 1 to 3 or use third-party OBD flashers like Bootmod3 (BM3) or MHD?
Answer: No. Modifying sectors 1, 2, and 3 is blocked. Even though the tool provides a permanent unlock state, all subsequent reading and writing must be executed using OBDSTAR device.
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