OBDSTAR X300 Classic G3/Key Master5/X300 Pro4has updated its VAG MQB IMMO software to versionV45.12. This new version adds the feature ofquerying historical immobilizer data for MQBinstrument clusters and reading ECU information.

What does the MQB Query Historical IMMO Data function do?

Now, for any MQB vehicle that has all keys lost programmed (has calculated sync code for AKL) using the G3/Key Master5 andRH850 adapter kit, when you connect this car via OBD again, the device acts like a dedicated archive for this car.There’s no need to read the original vehicle data again or wait for online calculations—it automatically identifies the vehicle and directly retrieves the historical immobilizer data. Just go ahead to generate dealer key and learn key.Generating dealer keys becomes as easy as checking a contact list.

Additionally, the new ECU information feature provides more accurate engine details, helping users better understand the vehicle’s status.

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