Not simple "firmware ... an issue"

Hi all. I have problem with "Firmware .... an issue" Tried different Odin versions. With 3.07 and 3.10 versions looks like flashing is ok, Odin shows no errors. But nothing on the tablet, there's not blue status bar. And when flashing finished, Odin shows no errors. But tablet really not flashed. What the problem can be? Who can help? Also tried Odin old versions, almost all show "nand error write". Tried also repartition with pit file, "there is no pit partition" error message. Looks like problem with emmc, but why. No one tried to flash. Just want to be sure before order nand flash.