Hello, I am sorry this might not be the appropriate place to post this, but I am helpless... My Avic MRZ09 is stuck on the boot screen which shows the boot screen RAKU NAVI, then welcome screen and then it comes again in the 1st screen....that's a bootloop, device is useless. Can anyone help? It was installed on my used car imported from Japan...it behaved weird as from last year. When I go in testmode it doesn't have prg.flg file, it has volume.dat file and other usual files, any help will be appreciated, thanks