galaxy core plus nao sai do modo download

gente eu tenho um galaxy core plus (sm-g3502t) que nao sai do modo download eu ja tentei instalar outra rom porem apareceu:

Enter CS for MD5..
Check MD5.. Do not unplug the cable..
Please wait..
S7392LUBUAMI5_S7392LZTOAMI2_S7392LUBUAMI5_HOME.tar.md5 is valid.
Checking MD5 finished Sucessfully..
Leave CS..
Added!!
Odin v.3 engine (ID:9)..
File analysis..
SetupConnection..
Initialzation..
Get PIT for mapping..

There is no PIT partition.
All threads completed. (succeed 0 / failed 1)

no celular fica aparecendo ODIN:flash read failure
entao fiz download do arquivo PIT e coloquei re-partition no odin porem apareceu:

Checking MD5 finished Sucessfully..
Leave CS..
Added!!
Odin v.3 engine (ID:9)..
File analysis..
SetupConnection..
Initialzation..
Set PIT file..
DO NOT TURN OFF TARGET!!
FAIL!

Re-Partition operation failed.
All threads completed. (succeed 0 / failed 1)

e no celular ficava dizendo:
SECURE CHECK FAIL: PIT

naum sei mais o que fazer ja tentei varias roms incluindo a do galaxy trend duos porem naum deu certo alguem me ajuda por favor!!!!!