I Have searched, Ive tried every Unbrick guide i have found and everything inbetween.
I have a samsung i527, Att 6.3 Mega. Never rooted, romed, nothing. Running on Jellybean. 3 days ago got a msg from att update for KitKat. Downloaded over wifi, installed took about an hour total. Phone just hung on Samsung Logo. Finally turned off all the way, tried to turn it back on got stuck in bootloop.
Tried going to recovery to wipe cache, and no recovery installed, tried to boot again after i saw no recovery got, "Failed secure: Kernel". Msg on screen stating "Unauthorized att software, please turn off your phone and return to an att store.
Tried to restore firmware with Kies and Kies 3, It wont connect, and when it does it says the software can not be restored, Im amusing because its kitkat now and not jellybean and kies does have 4.4.2 yet.
So no no avail, Tried odin last resort,
I527M Pit-Knox Enabled Rom.pit
When i flash the pit files they will only flash in Odin 3.07
That is the only thing that will flash PEROID
When i try the firmware it fails at Aboot, and on the screen i get
"Secure chk failed: Fused 4, binary 3"
When flashing recovery i get failed "Auth failed"
and on the screen i get "secure check failed :recovery"
The pit files will not flash in Odin 1.85, 3.04, 3.05, or 3.06.
I took it to the att store and they looked like deer and headlights.
If anyone has any insight that would be wonderful. Im starting to believe that when it updated it installed the new KNOX bootloader which is now not allowing me to restore 4.3, and once i got a "Check Security Bit".
Sorry again if this is in the wrong fourm, Ive been browsing about 6 different sites and have not seen any one have this problem that hasnt been able to recover with kies or odin.