Tech Addict wrote:I also found another setting last night. In Mobile data settings, hit the three dot menu in the upper right corner and select "mobile networks". In this menu, go to "preferred networks" and (1) make sure yours is still there and has a 4G listing, and (2) if it's not, try adding it. You'll need the 6-digit network identifier to do it though, but that's usually easy to find online.
Can't guarantee it'll help but it might. Good luck!
Ah, feck! I meant to do that before factory resetting and forgot! Oh well, reset has got my 4G back again but now I've got the faff of getting my phone back to how I like it!