Help to update xperia x10a

[#1]

I recently bought a cell xperia x10 (free) in Argentina.In system info say this:
Model:
X10A

Country: America

Brand:
Generic

Phone Software Version:
1227-4612_R1FA014 GENERIC

File System Version:
1227_4607_R1FA014 NAM_1

S1 Boot Version:
1226-2253 R8A013

ETS Software Version:
1225-9698_8

Customization Version:
1233-8200_R6A
Memory Card Version:
1232-6854_R19A

Content Version:
PA22

Type Number:
AAD-333880074-AV

Baseband version: 1.0.14
Number of compilation: R1FA014

When I try to update with SEUS o from the cell says I have the latest version of software.What firmware would have to download and install to have the latest version?
I will be able to continue taking the Spanish language in the phone?
Sorry foy my english

[KrazyD]

When there is an update available for your region you will be able to install it and keep the Spanish language on your phone.

[#3]

But this phone is free.I bought it from a person who brought him usa. Another thing is when I try to give the repair with the PC Companion in the step 3 (updated part) says "download error" can not be possible to download the phone software. Check your Internet connection or try again later. The server are down o something?

[KrazyD]

Try Sony Ericsson Update Service.

[#5]

Same thing. No new software available for the phone.

what else I can try?

[#6]

I was thinking maybe one xperia X10i modified to be X10A and therefore does not recognize sony programs. Is there any way to check if it really is X10A? Something that can not be modified.