There are some issues experienced by some customers zenfone 2. Make sure you check out some of the following checklist before you buy Zenfone 2 and make sure your zenfone 2 official warranty.
- Crooked USB charging jack, Some user got this issue
- Hairline Scratch, Even out of the box some user experienced this issue
- Screen Display Quality, Beware of Dark Spot and Grey Spot. To test you can go to Test Mode (Tutorial Here)
- Camera Problem, Usually User got this issue (Open Camera -> Select Ultra High Resolution Mode)
- Booting Test, Check if it is Booting Properly
- Browsing Test, Check if the screen flickering while browsing or not
- Signal, Wifi, and Bluetooth Test