How to detect when SW300 is pressed in Q2687

Legacy Legacy AirPrime modules
1

Anybody can tell me how to detect when SW300 is pressed. I used Q26 development kit with Q2687 Refresh.

2

This is just a duplicate of your existing thread:

https://forum.sierrawireless.com/t/problem-when-sending-sms-using-a-button/5992/3