If you have rooted your LG Optimus M, then you can download the app: android-wifi-tether. It will turn your LG Optimus M into a wifi hotspot and allow other devices to connect to it and use your MetroPCS internet.
If you have rooted your LG Optimus M, then you can download the app: android-wifi-tether. It will turn your LG Optimus M into a wifi hotspot and allow other devices to connect to it and use your MetroPCS internet.