Default [Q] Help! Note 2 bootloop, no recovery

Hey, so my note 2 (sgh-i317m variant) running 4.3 is stuck on the samsung screen and I cannot boot into recovery (it just stays at the samsung screen). What I believe caused this is the fact that I originally had it rooted, but flashed back to stock via odin to update to 4.3. Then I proceeded to re root it via odin and the cf auto root, however I forgot to factory reset before doing this. Now its stuck on the samsung screen and I cannot even get it into recovery mode. I can get it into download mode but whenever I try reflashing the stock rom (I have two different ones) neither of them work and Odin just displays "fail". I really dont know what else to do, hoping someone will know, thanks in advance.