You have no wifi on your ipad 5. you have change the wireless antenna but still no wifi.
If you see N/A on the hardware, then your wifi chip must be either dead or damaged.
*** Micro-soldering skills are required. ***
Links on how to replace ipad 5 chip can be found on youtube
Package include:
1x wifi chip
Compatible with:
IPAD 5
IPAD MINI 2