Since you're calling Latin America a country I already started doubting the whole sentence, but then you say 

YOU DON'T SAY?!?!?!?

Okay, things are getting more difficult.
I read the Lumpi101 link, and it states:

" <sub>ecdsa commented on 18 Nov 2016 • edited

This is not related to android. It is caused by the way you use cold storage.

If your watching only wallet does not have the master public key, then it cannot know the address derivation.
In that case, the cold storage will not be able to sign, (unless the address is in the cold wallet)

The following combinations should work:

    Watching-only wallet: xpub. Cold storage: seed or xprv
    Watching-only wallet: imported address. Cold storage: imported privkey

However, this does not work:
3. watching-only wallet: imported address, cold storage: seed or xprv</sub>"


_______________________________________________________________________________ ___


<sub>The way I set the phones is:
Offline: seed
Watch-Only: imported address via QR-Code

I've already realised it won't work, so the question is: How do I export the xpub from the offline phone and import it to online phone?

Thank you guys.</sub>
UPDATE:
Nevermind guys, already figured out how to do this. I didn't realise the Electrum symbol on top left was a button with the master key data.

I'd also like to thank a lot Mr ThomasV for everything he's doing on support the Electrum's users community and apologise for any harsh-sounded statement on my previous comments.
Thank you also Lumpi101.

_{Thanks for answering. Should I scan the unsigned transaction from what tab? "Send"? Because when I scan from the "Send" tab it only show details about the transaction, recognizes as Unsigned, but won't show any button except for the QR-Code symbol and the Close button. No "Sign" button in this screen.}

UPDATE: as I was posting in 2 topics, let's give preference to https://bitcointalk.org/index.php?topic=75617 as there's more detailed info. Thank you for answering, ThomasV. Could we consider producing a Manual to this matter?

I'd like to do the same, Lumpi101 , and although I already have bitcoins my plans went down water since the air-gapped phone that should sign the transactions now have bitcoins in its wallet but cannot sign anything, because Electrum's Android version apparently does not support signing transactions. I got very disappointed with that, looks like signing transactions is an ordinary feature for a wallet manager and Electrum won't do that.
Does anybody know another wallet manager FOR ANDROID that could sign transactions and can be installed via apk?

Is it possible to to review the Addresses in an Electrum's Android version?

Hi guys,
I've recently bought an refurbished Samsung Galaxy GT-I9100 really cheap with intentions to use it as a cold storage wallet. I mean, uninstall all applications already present, install Electrum (apk) and never allow bluetooth or wi-fi (SIM card already removed). My intention is to use my everyday regular phone to watch this wallet and create transactions to be signed by this other offline one (I'd use the camera to read the generated QR-code). My susprise was to find out that Electrum's Android version cannot sign transactions. Is there a way to get this to work? Thank you buddies.