I purchased the Blu Win JR LTE last week 3rd nov 2015 and I have installed all the updates one after one till the latest one version : 8.10.15137.148 displaying Windows Phone 8.1 Update 2 . After all that done THE PHONE IS STILL HAVING THE TOUCH SCREEN ISSUES.. I can’t EVEN TYPE TWO WORDS without PRESSING The BACK Button KEY . I WISH IT WILL HELP OTHERS IN WAITING FOR ANOTHER NEW VERSION OF THE PHONE because it seems that THe HARDWARE they DO use Isnt a Premium One .. I owned the lumia 520 and I can SAY LUMIA PHONE HAVE BETTER HARDWARE (SCREEN RESPONSINESS) than THE BLU WIN PHONEs .. Hope The WIn10 Updates will FIX IT because it is not USABLE AT ALL FOR CHATTING On WHATSAPP, MESSENGER AND Even TYPING SMS ,, Thanks AGain