Huawei P9 repairability score: 7 out of 10 (10 is easiest to repair):

Modular components with spring contacts, thoughtful cabling, and minimal adhesive all make repair cheaper and easier.

The battery is straightforward to access. Removing it requires knowledge of the adhesive removal technique, but is not difficult.

The display assembly is a fused unit, and replacement requires near complete disassembly of the phone.

The P9 inexplicably uses Pentalobe security screws on the exterior, requiring a specialty screwdriver to open the phone.