Too Long; Didn't Read
I recently upgraded the <a href="https://hackernoon.com/tagged/android" target="_blank">Android</a> OS on my <a href="https://hackernoon.com/tagged/motorola" target="_blank">Motorola</a> X 2nd generation from Android 5.1 Lollipop to Android 6 Marshmallow and ran into some problems. I couldn’t make or receive phone calls. The network indicator on my phone just showed “<strong><em>no service</em></strong><em>”</em>. It bugged me so much and i started conducting research and asking people for help. Then I asked some experts who fix phones about it and they suggested that i try to revert back to Android 5.1 so i decided to give it a try as i was really out of options.