i recover my lumia 800 dead by emmc damage
i replace emmc with n8 mass memory and write user,boot1,boot2,extcsd etc files with emmc box
all supporter not done and they said this model we not support
this is link by supporters answer
http://forum.gsmhosting.com/vbb/f899...c-box-1916903/
this is done by another working set
i read its emmc with the help of emmc box and write this data to mass memory of n8 16gb and i fix this mass memory to lumia 800 set working
nothing is impossible