why dont android phones have a bios like computers and be able to load a generic arm linux iso or windows one,or be easily rooted?

https://lemmy.dbzer0.com/post/64812274

why dont android phones have a bios like computers and be able to load a generic arm linux iso or windows one,or be easily rooted? - Divisions by zero

why are phones so locked down unlike pcs and laptops?

Because what are you gonna do? Buy all the individual components and put it together yourself?

The closest i can think of to that is buying a bunch of broken shiftphone/fairphone and making a new phone with the working parts.          

But its not really choosing the design but instead a type of repair with spare parts.          

in that sense other phones can also be repaired this way but they need a lot more skill like ungluing without breaking.

When I can order a RK3399 on aliexpress and get a PCB fabbed in china for a few dollars, what’s stopping me?

Just because you don’t know how doesn’t mean other people shouldn’t.

Dozens of you.
Are you some sort of moron? It would appear so.