Train manufacturer intentionally bricks trains serviced by independent service providers ( zaufanatrzeciastrona.pl )
Polish train manufacturer that lost servicing tender programmed train controller to brick itself after train stays for some time in 6 ISP facilities or in 1 their faculity(for testing?) until undocumented button combination is pressed. Some controller versions brick itself after train is idle for 10 days. After news about this...
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