13 Secret Codes That Will Unlock Hidden Features on Your Android Phone
With most phones, you can access hidden features by entering secret codes. Some of these codes lead to passageways, others lead to Easter eggs. You might not use secret phones every day, but they are fun to play around with when you have downtime. Some codes only work with specific phone carriers or models, so you’ll have to test them out to see which ones work. Here is the list of secret codes that will unlock some pretty awesome features on your phone:
13) Field Mode: *3001#12345#*
When you enter this code into your Android phone and click the call button, it will take you to field mode. Filed mode shows you information about local networks and cell towers. You can find service cell measurements, PDP context info, LTE intra-frequency measurements, and more. This is a really interesting read.