If you already have A kessv2 tool, then you don't need to buy anything extra! It is enough to connect your tool, read the ECU ID and, thanks to the virtual reading function (OBD Virtual Reading*), you will receive the necessary original ECU file. The functionality of a virtual reading has never been so effective! In fact, the company Alientech has at its disposal 16.000 original files for BMW.
With the new protocols 628 and 629, it will be possible to read the ID, write, perform the recovery procedure and access the tool menu. In addition, through a menu TOOL, it will be possible to implement manually backup and restore file CAFD (or CAFD CAF-Datei – file which includes the configuration of the ECU). However, this procedure is performed automatically by the Protocol itself during the write procedure.
The new protocols developed in cooperation with Chiptuner include the following functions:
Automatic detection of modified file. The Protocol shall unlock the ECU via the OBD to pass away to the programming of the modified file.
The only update to the latest versions. If the ECU has been modified earlier and new changes need to be made, then the Protocol will record these latter. So programming will be much faster as it will run only a partial recording of a certain area of the map.
Automatic correction of the checksum. The file downloaded through the virtual reading is compatible with any of the calibration software and does not require special operations to correct the checksum. Checksum automatically adjusts the KESSv2.
File compatibility. In the case when the original file is missing from the virtual reading database using the K-TAG tool, it is possible to read the original ECU file and write it with the kessv2 tool.
Recognition of the original file record. After overwriting the original file, the Protocol will recognize it and return the control unit to the factory settings, leaving no traces of previously made changes.