fatclue_98
Retired Moderator
That's not entirely true.
Flash memory eventually wears out.
LCDs can die, although not for a very long time. I hear AMOLED has a shorter lifespan somewhere, but don't quote me on that I could be wrong.
Capacitors or small parts can wear out etc
it could also be very minute defects making themselves heard
Unless there are moving parts, there is no wear. If you're telling me that silicon chips deteriorate, I can buy that since I don't know the half-life of silicon. I've never seen an expiration date on a phone. Considering there are still some 2002-era devices still running out there, I don't think the "wearing out" theory holds any water. I'm typing this on a TC1100 built in 2002. Except for a battery replacement, it still has all the factory parts. I do take care of it like making sure the heat dissipation system is clean and the fan runs as little as possible and heat stays at a minimum. Always remember, heat is the only reason we'll never see a perpetual motion machine. Never.
Any device, whether mechanical or electrical, that runs outside of its designed temperature range will suffer from early deterioration. It is the operator's responsibility to notice these things, not the manufacturer's.