@fricstix : PM does voice on 3G and text and data on either 3G or LTE. When the phone is set to LTE and idling there, when a call comes in, the phone switches itself to 3G. You might even see bars jump up depending on your LTE reception. Or down 🙂
Edit: No. There are no extra charges around here.
To ensure you have the latest PRL, you can power your phone off and remove/reinsert the SIM card once a month or so. to force an update to the network, making cell towers 'aware' of the new sim, this can improve reception as any new agreements between carriers and their cell towers and any new cell towers since your last sim will be 'aware' of the new sim, allowing it to access them.
in turn 'improving' your reception, in areas you previously had bad reception
then google how to reset your network settings for your specific device
change your network to GSM/wcdma auto. if none of these are working then contact customer support mods
Okay. Any reason not to change it to GSM/WCDMA/LTE auto after reseting?
The options allow you to configure your phone with whatever works best. If one option doesn't seem to work well then try another. The options are there so you might as well pick one.
The only reason you'd need to change one option to another is when the machinery at your local cell sites prefers/supports different protocols. If you tried using your phone in a different city, for example.
Playing around with these sorts of things won't incur any extra charges from Public Mobile (or Telus, or other operators). The network will allow connection to anything within your provisions and it will disallow connection to anything outside your provisions. Public Mobile is strictly prepaid, there's never any overage charges - you get what you've already purchased at the price you've already paid for the entire billing cycle, until it runs out (and renews).