Bossman555

Looking to see why the testmode key and/or developdbg on doesn't work with firmware 1.06. I need to use testmode_A key but the headunit doesn't recognize the file, doesn't enter testmode and just says "file is undreadable". anything i can do to work around this?b i am attempting to access test mode on pioneer nex 4201 with firmware 1.06 installed . Is there a way to roll back the software to 1.05?

I have pioneer nex4201 . I have been trying to access test mode but it keeps saying the files are unreadable when I plug the usb drive into usb 1. The firmware version is 1.06. Is there anything I am doing wrong? Am I missing a step or not building the key right at the website? On my Mac it always says testmode_a key is a keynote file