2 months after flashing my mtn mifi E5573C now am getting authentication error each time I tried to connect to it using my password ..I tried reflashing all over again using window 7,8 and 10 but they all recognize it as a Bluetooth device and it won't allow me flash it,even on the computer I use initially..I even tried the reset button on the mifi still it didn't solve a thing...I try using USB as LAN connection when it got to the username and password it won't still accept my details... I've tried everything I know please help me out