Hi everyone I just got my Lumia 830 & I need help. I loved my 1520 but because of the size & weight I decided to get the 830 and use the 1520 as a secondary phone. I was able to get everything to work except internet sharing. My 830 is the ATT model but I unlocked it and I'm using it on T-Mobile. I even changed the apn to fast.t-mobile.com but couldn't get internet sharing to work. I also installed the access point but still no luck. Thank you for advance for all your help & input.