lo9314
Thank you for link, I will try after this my run work will have no success. Thanks!

elros34
If I run dmesg, it should save somewhere some log, don't it? Because I see only the last few lines, which can be displayed - no scrolling. But what I saw even without scrolling is massage:
Unfortunately I cannot find this exactly means or how to repair this (if possible).

EDIT:
What lo9314 suggests doesn't function on my side. When try to use flasher, it cannot get n900 in update mode as suitable device and is still waiting.

Now I really don't know, what to do. Should I set N900 into storage mode and repatition eMMC? I definitely don't know, what part is bad, why cannot boot Maemo...Maybe that's the right time to offer half of kingdom for a solution!