I’ve been using Mobile Secret Codes, USSD, MMI for a couple months now. It’s basically an app that gives you access to all kinds of hidden Android codes and settings. Pretty solid if you’re into tweaking your phone and finding cool hidden features.
Here’s what you can do: there’s a huge list of secret codes for things like checking your phone’s info, testing different hardware, and even unlocking hidden menus. It’s got some USSD codes too that let you do stuff like check your data usage or activate certain network settings. And the MMI codes – those are pretty neat, you can use them to get info on your SIM card and mobile network.
Look, if you’re into customizing your Android phone and don’t mind getting a bit technical, you’ll probably like this app. It’s not perfect – the UI is a bit cluttered and some of the codes can be tricky to use. But overall it does the job and is worth checking out if you want to really dig into your phone’s hidden capabilities.
