After
：
Antenna connects to RF module through RF cable which soldered on
antenna. The centre core of RF cable is soldered on antenna and the
metallic shield is soldered on metal stamping which connects to the
ground.
Reason for changes
：
Get more wider bandwidth
，
improve antenna
performance.
WIFI band include BT band
，
and they use common antenna
，
so
the changes of WIFI antenna makes no bad influence on BT
performance.
The antenna gain is same as original.
WWAN Main antenna change
：
Before:
After:
