[Q] Nexus 5 D820 works only on 2G topic

Hi,
I bought a new device, Nexus 5 D820.
And I have a problem when I insert SIM regardless of which provider I have no reception (no service),
Tried to set the correct APN settings with the provider but it didn't help.
It works out only when I'm working on 2G when I return to 3G again no reception. (No LTE in my country)
what could be the problem?

Different displays between D820 and D821 (worse) topic

I had a D820 from the US Play store and I just bought a new D821 from the Carphone warehouse in the UK because I wanted to use the 4G.

The displays of both models look similar but the display on the D821 is a little bit "sticky".
For example, It's hard to swipe for notifications and hard to swipe in Swiftkey. My finger feels very hard resistance.
On the D820 it's much better (actually, I like it very much there). I also compared it to other phones.

Do you also see this on your D821 or I might have a defected unit?

How to check if I have a D820 orD821 topic

Hello guys!

I am about to buy the international version of Nexus 5. I REALLY need it to be the international version, that is, D821.

How can I check which version I have once I have it in my hands?

Any help is appreciatted!