https://wccftech.com/us-copyright-office-says-hacking-drm-to-fix-your-electronics-is-legal/

The Librarian of Congress and US Copyright Office just proposed new rules that will give consumers and independent repair experts permission to legally hack embedded software on their devices to repair or maintain them. This exemption to copyright laws will apply to smartphones, tractors, cars, smart home appliances, and many other devices.

It allows breaking digital rights management (DRM) and embedded software locks for “the maintenance of a device or system … to make it work in accordance with its original specifications” or for “the repair of a device or system … to a state of working in accordance with its original specifications.”