q3k :blobcatcoffee: (@q3k@hackerspace.pl) I can finally reveal some research I've been involved with over the past year or so. - eviltoast

We (@redford, @mrtick and I) have reverse engineered the PLC code of NEWAG Impuls EMUs. These trains were locking up for arbitrary reasons after being serviced at third-party workshops. The manufacturer argued that this was because of malpractice by these workshops, and that they should be serviced by them instead of third parties.