Well I bought mine from a seller in Hong Kong on eBay, I have no idea what variant it is. Everybody around here is raving about how they got a RM-937, RM-this RM-that ... yet nobody ever takes the time to mention how they found out what variant they have and how other owners can tell what variant their device is. But anyway, back to the original topic, I did get an unlocked 1520 from ebay last month and then went to a koodo store here in Montreal and got a nano sim card with a 40$ monthly plan and everything works out just fine so far. However, I haven't gotten any notification about the WP 8.1 update yet and I wonder if I ever will have my phone updated to WP 8.1, since some canadian users are already bragging about how they're already running on the new OS, I don't understand how some are getting it and others aren't. I hope I won't be regretting my purchase in the long run.