Hi I have my AT&T Note 3 currently rooted but want to put it back to normal. I never changed the ROM and Knox hasn't been tripped. But what I did was uninstall certain apps that were preloaded with out backing them up first. Also my wifi decided to not work anymore and I cant do any updates. So I decided I wanted to reinstall stock firmware. I downloaded the firmware from SamMobile and used Odin 3.09 like it was recommended. But every time I try Odin Fails. I also tried this method as well and Odin fails. I tried mulitple cords, usb ports, and different computers. Here is what the Odin log says
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> N900AUCUBMI9_N900AATTBMI9_N900AUCUBMI9_HOME.tar.md 5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/019> Odin v.3 engine (ID:19)..
<ID:0/019> File analysis..
<ID:0/019> Get PIT for mapping..
<ID:0/019> Firmware update start..
<ID:0/019> NAND Write Start!!
<ID:0/019> FAIL! (Auth)
<ID:0/019> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)