How to check model number of my Z3?

[Ferneteando]

Hi,

I've just bought a Xperia Z3 but the LTE Frequency does not seem to work.

I registered the phone on Sonymobile.com, but the software versión changes everytime I enter the site.

For example, yesterday the version of software asociated to my phone was 23.2.A.1.62, today, earlier was 23.1.A.0.726, now the version I see is 23.0.A.2.93.

A friend told me that knowing the version of software asociated to my IMEI I can check if the model is the D6603 or the D6653.

I bought the model D6603 because that is supposed to be the model that works with LTE frecuencies on my country.

The D6653 does not work with LTE on my country.

Can anyone help my to find if my Z3 is D6603 model?

Thanks!

[Ferneteando]

Hi, Here it is the problem. It's in spanish. https://drive.google.com/file/d/0B0Ar4t24GkuEYl95YmI0eGdkMEk/view?usp=sharing

[Rozapk1]

Open Dialler App > Press *#*#7378423#*#* > Tap on Service Info > Tap Model Info