device stuck at odin mode (sdcard) topic

MY N8000 IS STUCK AT DOWNLOAD MODE, IT SHOWS
ODIN MODE (SDCARD)
PRODUCT NAME GT N8000
CURRENT BINAY : CUSTOM
SYSTEM STATUS : CUSTOM
RP SWREV :
RPMB : INVALID RPMB DATA

I cannot get to recovery mode, when i try to flash it gets stuck at nand write failed.

i tried flashing stock recovery it wont work, gets failed at nand write failure. i cannot get to download mode unless i have memory card inserted :( what to do please help me