Sony Xperia Z3+ and Z4 get the teardown treatment, and look relatively painless to repair
Every last facet of the Z3+ and Z4's inner workings are revealed in the teardown by the folks at spares and repairs firm Witrigs. The battery is apparently rather easy to remove, as are most of the internal components, which would seem to imply that these handsets are relatively easy to repair. A Philips screwdriver and a little patience allowed Witrigs to separate the internals, and the result is the complete teardown you see below.
Oh, and if smartphone anatomy really appeals to your inner-geek, then be sure to take a look at the Samsung Galaxy S6 (edge) teardown here, and the LG G4 teardown here.