Got the stock firmware for my device (Bell GN2 i317m). Flashed just fine, but when the phone booted, wifi worked and now I have no network. Says insert sim card when trying to select mobile networks. Tried my sim in a friends phone, worked no problem at all. okay next step. Root it with CF root. Odin 3.09 locks up when writing cache. Now phone one boot. Go to Kies and use firmware upgrade too. Works no problem. Back to root with Odin 3.07. Locks up in the exact same spot as 3.09. Tried 1.85 same problem. I realize my EFS folder is likely pooched, but everything I have read seems to require root, which I cannot seem to get anymore.
What would your next step be, before throwing it out the window? Now my stupid reset counter has Knox warrarenty failed 1 next to it and like 30 (yes 30) on my counter.
PS I have been flashing phones forever. HTC Magic, Xperia X10, Nexus S, Galaxy S2 and Note 2. I have never run into an issue like this one!