Three 4G not working?

I have the Xperia Z2 on Three UK and I bought it unlocked. 3G works fine but 4G doesn't, even when LTE only is selected and my friends on Three have full 4G signal it shows no service. 4G used to work on O2. My APN settings are correct. Any ideas?

Remove Three UK Branding?

Hi All and apologies if this has already been answered elsewhere.

I have just recieved my LG G4 (H815) on the Three UK Network and was wondering if anyone was able to point me in the right direction to remove the "Three Branding" found on bootanimation and shutdownanimation?

I have rooted using "Low Effort Root" and replaced all locations with the LG bootanimation and shutdownanimation and ensured all permissions was set to 0644 (rw-r--r--) but I still get the "Three" logo appearing right at the end of the LG bootanimation.

Any ideas folks?

Thanks in advance.
trickie69r

Stock recovery (Three UK)?

I found my old Desire HD and tried flashing it with the latest Cyanogen Mod through Clockwork Mod. That failed, then I remembered why it has been sitting in a cupboard for three years... because it is S-ON and I couldn't find a way around that. Now when it boots it just displays the Three branding then hangs.

I've tried downloading various RUU's for this device, but they just fail - I assume because of the vendor lock. I tried to find a signed update, but all the links I've found are dead.

I've still got Clockwork Mod, but without a signed update.zip I'm not sure what else I can really do. Any ideas?