I've been using a gen 2 Moto G with a Koodo prepaid plan since last December (around Christmas). Normally I've had very good reception, either full strength or very close to it. For the past couple of weeks, however, I have been getting a very weak cell signal (one bar, sometimes even less). The issue is far more bizarre, however. If I remove/replace my SIM, turn airplane mode on and off, or even restart my phone, I get a signal as strong as I used to. After 30 seconds or so, however, I can see the strength quickly drop down to almost nothing. Another cycle of airplane mode momentarily solves the issue. This problem is quite annoying; not only am I missing some calls and texts, but my battery is draining much faster than it used to. Any ideas what could be up?