Samsung

Whether genuine and aftermarket parts are sold to independent repair shops and consumers, at fair prices, for a reasonable period after release.

Whether board-level schematics, service manuals, and diagnostic procedures are published or licensed to qualified independent repair providers.

Physical design — modularity, fastener choice (screws vs glue), part isolation, ease of disassembly, and component-level replaceability.

Whether OEM parts are priced near manufacturing cost or include large markups that nudge consumers toward replacement.

Absence of parts-pairing, biometric unlocks, software locks, and other anti-repair countermeasures that disable functionality after third-party repair.