hi. i have avic-f40bt firmware 4.0. It does not have user folder at all, only Nand. I rename in script user at nand. also i make backup. but now device hangs on pioneer logo and cant enter test mode with Conndi`s hack.2.21 with supertestmode its ok but i cant make select or copy files to return back it alive. any sugestions? also with 1.4 hack it going at test mode but still cant copy or select files (options are grey).