I have read all the other posts relating to this error.
I have cleared my cache using SSH.
I have successfully re-jailbroken my ATV using seasonpass.
I am still getting the error 9.100 when trying to install the latest ATV Black. Any ideas??
I have solved this for me.
I updated the ATV using itunes and USB cable to the latest version 6.2.
I then jail broke it using seasonpass.
I reconnected it to my TV and checked that seasonpass had worked. The software was downgraded to 5.2.
I then ran the ATV flash and successfully transferred the files.
Once maintenance was installed I could then install Infuse.