Some Motorola Moto G owners who got the Android 4.4.2 update seem to be having trouble with their devices post-update. There are users who complain about intermittent signal loss and even SIM card connection after updating the device. It doesn’t seem to be a permanent issue though. Users just need to turn the phone off and on again to regain signal. But that seems like a tedious thing to do. Motorola is working on a fix for the problem now.
Source: Ubergizmo
Issues do not affect Canadian Moto G units