Break into pieces if old.
Motorola Announces Project Ara, a modular phone hardware platform
Dat fragmentation!
Good luck with that.
Motorola Announces Project Ara, a modular phone hardware platform

Motorola has announced a free, open hardware platform for smartphones called "Project Ara." The goal is to create a modular smartphone that would allow users to swap hardware components at will. Motorola says it wants to "do for hardware what the Android platform has done for software: create a vibrant third-party developer ecosystem, lower the barriers to entry, increase the pace of innovation, and substantially compress development timelines."
Dat fragmentation!
Motorola is teaming up with Phonebloks, a company with a similar idea, to make this a reality. Motorola is letting enthusiasts sign up to be "Ara Scout." Scouts are interested members of the community who can give feedback and share ideas about the design. The most active members will get free devices when Project Ara launches, which Motorola says should be about a year from now.
Good luck with that.