Problem is only, if manufacturer does not allow to: - Install alternative OS - Change or upgrade RAM and harddrive - Change battery It is possible to do all

Problem is only, if manufacturer does not allow to: - Install alternative OS - Change or upgrade RAM and harddrive - Change battery It is possible to do all or some of that to some Chromebooks, there are videos at YouTube. It depends on model. At that article, there is complaining about Chromebooks and reparability. Where are similar articles about smartphones?