We hope nothing ever goes wrong with your Nexus 5, but in the event it does (or has) and you are a little handy, you might want to check out the video below from ETrade Supply. The emphasis is on replacing the screen, but it’s a complete teardown so you will learn about replacing the battery, loudspeaker, mainboard, and so on. This video covers both the D820 and D821 versions of the Nexus 5.
Yes, it’s a pain to do all this stuff on your own, but you can save a lot of dollars, especially if it’s non-warranty related such as a cracked display. Hit the break for the video, and be sure to hit up the source link for more information as to what tools you need and more images.