RexXer seems to have a solution for mapping the 1260, though they need the ECU inhouse for the first flash. Anyone tested this? https://www.rexxer.eu/downloads/available_rexxer_mappings.pdf
From email with Rexxer: Yes we’ve tested to flash some of these model and it works. First we have to open the ECU one time in our company. Mit freundlichen Grüßen / Best regards Sarah Bott E-Mail: [email protected]