drepo420

Hey I'm new to the forum. I'm trying to upgrade to the CNSD-21FM on my 120bt. i've downloaded the 2.004 hack and followed the instructions posted to a t. the head unit will run the update and get to 100% then it says update failed and will run the update again with the same result..Noticed someone else had the same problem. Has anyone figured out what the problem is? My head unit was already updated to version 2.003 before trying to run it with the hack. thanks in advance