Thanks i will keep those files like my eyes
I already try above steps but it seems that my problem is more deep navigation won't react on sd card after plug in and reset device , it simply stays on loading screen and do nothing . I also cannot see device on my pc . And power button simlpy cannot turn device off .
I think maybe some part from bootloader is missing or corrupted.
Around me there are no service centers so i must try to repair by my self and i'm open to any ideas how to access to internal flash or some force update methods even those with risk to finish with dead device.
Thanks in advance for everyone who can give me some advices how to proceed.