I'm still currently under 'ZVD' version and never performed the so called 'update' that MetroPCS wanted me to perfom on my LG-Esteem and so far I have no problem whatsoever receiving phone calls, sending either SMS or MMS text messages or connecting to the web when I wish to do so, I'm in Miami, FL and my device shows in its status bar '4G' constantly all the time. I also often make app updates through Google Play Store on my device and no problem either. After reading all this anomalies occurring after the infamos 'ZVE' update, I plan to stay with my current version (ZVD) which has served me well for two years and counting. My device doesn't reboot by itself either and no lagging at all. Maybe I'm lucky. Also I'm not rooted ( haven't had the need to root my device).