Nice post Zahra!
I have to say I Do like the idea and I thought that I would post my comment rather as a new post instead of a reply since it also adresses my personal concerns.
As much as I think it would be nice to have a environmentally sustainable phone I'm still not really convinced that a "blok"-based phone is something that people would like to have. As much as we need to reverse the escalating trend in waste from thrown away phones, we first and foremost need to adress the mindset of the people consuming them, don't you think?
Even if we launch the idea of a "green" phone, do people want one? We can't take for granted people genuinely care about the environment. In the video he adresses very short that the waste is a problem, and it increases, but the rest of the promo is more about how nice it would be to have an upgradable phone, instead of focusing on letting the audience know Why we need it (i.e. less waste compared to an ordinary phone).
Since the increased demand from smartphones today are most likely because of the technological advancement in creating smaller and smaller components and better systems I think it is hard to propose an option to that development that contradicts that trend. The phone will most likely be bigger, heavier, and more "bulky". People who buy a smartphone are not prone to lean on these types of features: they want a sexy, slim and aerodynamically formed gadget that feels good in the hand. I can't image a "blok"-based phone appeal to that consumer. Therefore I think the bigger issue is to change the mindset of the people buying them. Buying a "green" car today can be "sexy", but it took years and years of good PR, what will it take for the phonemakers and the industry as a whole to succed in doing this?
Will it even work?