My P50V20H (2010) got a black vertical bar in 2018. After DIY repair (flat cable bad contact) it's given to someone and it's still working now.
A coworker's V20H also got a black vertical bar last week. Again it's DIY repaired.
Another coworker had a V10H not starting - it's DIY repaired (fan replacement) 2-3 years ago.