A smart phone should always be a client due to the fact that it gathers information from a server.
Answer:
are u updating it? or u r rooting it?
If you originally had a tracking device installed on a different device like find my iPhone, you can easily see where it is. If your phone is Android, Google has a system where you can search where's my phone, and if you have your email login into your phone, you can log in on Google and Google will show you where it is.
The answer to your question is,
D. Toggle Filter. You don't want to remove the filter, you just want to see the difference.
-Mabel <3