I'm over in the USA and have the Tmobile variant. I want to flash an unbranded version. Does anyone know which one out of this list located here that I should use? http://forums.windowscentral.com/nokia-lumia-925/231135-product-codes-lumia-925-a.html The last one says unbranded WITH 4g, but I'm not 100% sure what country that even is. I want to make sure that I'll be able to get 4g and 4gLTEon my phone if I flash another countries firmware. If anyone is more knowledgeable in this area, please let me know. Thanks everyone.