Steps to reproduce: 1. Load MP-stage app on your device with AT&T SIM card 2. Search for :debug 3. Look for carrier_sim Expected results: For carrier_sim, "at&t" value is displayed. Actual results: For carrier_sim is displayed "deutsche_telekom". Notes/Issues: Verified on FF OS 1.3 (Inari) with AT&T SIM card

This is not a new issue, it has always been the case, but we should stop doing that. The regions where we hardcode a carrier are: United States, Brazil, Colombia, Austria, Serbia, China, Japan. For these regions, we should only set the carrier if the SIM has the correct MNC.

Fixed in https://github.com/mozilla/fireplace/commit/3ff148f28ec87fc50b17419684dce9e59aa7b8ab Note that you wouldn't see "at&t" since it's not a carrier we support atm, but you shouldn't see "deutsche_telekom" anymore if you don't have a DT/T-Mobile SIM Card.

Now there are 2 lines "--" displayed on carrier_sim and region_sim while using the Movistar SIM. Is this expected? Also I can still see "deutsche_telekom" for carrier_sim while using the AT&T SIM.

Which country is your movistar SIM from ? Also, which package were you testing with ?

The Movistar SIM is from Spain. I have tested on both latest MP-stage and MP-dev apps on FF OS 1.4, FF35 on Android 4.2.1

Please post ashes then, I'm not sure what's going on.

MP-dev AT&T SIM Log ID: e758e MP-dev Movistar SIM Log ID: 77613

Your package_version is 20140925220444, indicating it was generated on 25th September, which is too old to have my code in it. Please update it. (The API updates in the background when you visit an app that you have already visited, so load https://marketplace-dev.allizom.org/app/marketplace/ and then reload, confirm that package_version is higher than 20140930?????? and update then. You can verify package_version in :debug once you have installed the package)

Also, you should test both SIMs on Firefox OS only. SIM carrier/region detection is not available on Android.

I have re-download the MP-dev app and now I'm seeing "--" for carrier_sim when using AT&T SIM and "telefonica" when using Movistar SIM.

Re-closing then, thanks.

Verified as fixed on MP-dev FF OS 1.4 (Inari). Closing bug. Thank you!