Hi in a few lines I will try to explain and ask for advises. My brother has a Coby Kyros mid 7035, yes what a crap !!! He tried to rooted it, as you can imagine with no success. Now it ´s not booting. It hangs on the Coby logo. I attempt to install the original firmware, I found a dump on the internet (zip file), booting in recovery mode and copying the dump file on the SD, unfortunately in the install process I got this error message: " e:signature verification failed " Of course I Wiped partition, reset factory and so on... Well no more to say than Thanks in any case !!!