How could I know from where my phone is?

[Ayman Guandique]

So, yesterday I downgrade my lumia 1020 from windows phone 8.1 preview to windows phone 8.0. Expecting that I will be receiving the Cyan update but it doesn't appear. And I don't even know from where my phone is. The Manufacturer Name is: RM-877_lta_lta_219. I'm in El Salvador but my phone isn't from here (I purchased it used). Can someone tell me from where my phone is? any help?

 

[dameon_03]

try settings extras+info and click more info. it may be under manufacturer name. On mine since i flashed a euorpean rom it says RM-821_eu_france_267. and you could also look under mobile operator

 

[TechFreak1]

Go to the about screen and check under "Carrier", that will display what region / provider your phone is from or lock to.
Once you have that confirmed, check this page:

Software update for Nokia Lumia with Windows Phone 8 - Nokia

I would recommend you have both links above and below bookmarked.

Windows Phone 8.1 and Lumia Cyan update tracker | Windows Phone Central

A quick note: CV would mean it is a Country Variant so for example CV GB would mean I have a country variant from "Great Britain" therefore would need to look under "United Kingdom" on Nokia Support page.

I hope the above helps.