Hi to everyone. Sorry for my English(i'm from Russia) but i realy need help. I have a z110bt upgraded to z120. so when i tried to upgrade to z140 he died. when i turned it on, nothing happends, only background light is on. the eject button is working perfect. so help me if you can. PLEASE

test mode, supertest mode, condis hack, doesnt work. does anybody knows how to fix my problem. PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!help. i like this headunit. any ideas? i tried to cnsd 210-310 nothing happens.