More customers need to sue for the right to repair things that have substandard firmware.
That should especially include cars and phones, with 10x min damages if a vendor or insurance company falsely claims firmware modifications were at fault if problems arise.
(So, if you turn off unnecessary cabin beeping, and then get in an accident and the insurance company rejects because of “unauthorized modifications”, then they pay you and the other party at least 10x actual damages if they end up losing in court.)
Vendor retaliation (undismissable nag screens, force pushed regressions and compatibility breaks) should have even higher damages.
This would immediately enable people to run secure, open variants of android, and also mod their iPhones.