It was a long story, I bought this lumia 900 from rogers, then i unlocked it and switched to fido,but at that time, fido does not offer lte micro sim. so i use a 3g micro sim instead, recently, i replace it with the new fido lte microsim, it works, but soon i found my lumia 900's internet sharing function is not working anymore. i tried go to a fido store, no solution yet? is there anyone having the same trouble like me?(with the 57 2G lte plan)
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Solved! Go to Solution.
you need call fido activate tethering (free service ) and to do a hard reset after activating tethering , it will load the simcard information into your phone and you will be ready to go! it will erase everything on your phone, but you can re-install apps with windowsphone.com easily and for the rest zune can sync it back except for txts
hard reset: go to Settings, About , Reset your phone .... in lower part of the page