Galaxy 5 stuck on logo

After back to Stock firmware
i can access to recovery mode / download mode and thats all.
im only see the logo of samasung galaxy note 5.

i tried a diffrenet stock firmwares (different release dates ) - different odin programs (3.10.6 3.10.7)
and also with kies.

nothing shows up after the logo. only when the phone do a reboot ufter updating the firmware its show android icon - installing updates , and thats all its comes back to logo.

The only things i see differnet : in the recovery mode it says at the bottom ( in yellow ) : "dm-verify verfication failed ... need to check DRK first..
and in download mode : ,
ODIN MODE
DOWNLOAD SPEED : FAST
Product NAME : SM-N920T
CURRENT BINARY : Samsung official
System STATUS : Custom
FRP LOCK : "on" .
Secure Download "Enabled"
KNOX WARANTY VOID : 1(0X0301)
AP SWREV:B:2 K:0 S:0.

when i try to flash custom kernel / custom recovery . its blocked by frp which i dont know why..
how to fix this trouble . i spent 2 days for that and im stuck with that and no phone.

( before i used with DARKSHALTER ROM ).
any help / suggestions?
Thanks,
Roee

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