ferrum/locatemydevice — reverse-engineered prompt

Build me an Android app that works like a simple open source “find my phone by SMS” tool. The idea is that if I lose my phone, I can text it a secret command and password from another phone, and it replies with useful info.

It should let me set the activation command, change the default password, and optionally allow only trusted phone numbers. Supported SMS commands should include getting the phone’s location with an OpenStreetMap link, battery info, nearby cell tower info, WiFi info, making the phone ring, showing a message on the locked screen, locking the device, and calling me back. If Android version limits things like turning WiFi on or off, handle that gracefully.

Please make the app feel simple and safe, with a clear home screen explaining the command format and permissions needed. Since this touches sensitive permissions, include warnings about SMS not being encrypted and encourage changing the password. Look up current Android permission rules online if needed.