Colleagues, I have a problem, I can't update the software on my radio avic f840bt, it asks me for a password, the radio is not secured with any password, at least I think so, after installing it in the car it worked without entering the password, when trying to install new software, it asks for the password , I tried many combinations and nothing, I also tried to remove the password with the given script on the forum and then nothing, still asking for a password, I have no ideas, it seems that this is not a user password but some internal Pioneer, is there anyone who can help me I just can't