good day, on the radio relog hitachi with adaptation for iphone. I was walking, but suddenly Key Fead appeared and does not let me enter the menu. and not having the remote control. I can not use it, it is blocked or a number appears that counts and nothing happens, thank you very much for your comments

Hi, if I could disassemble the keyboard and clean it, taking out the top sheet and the push buttons. So I turned it on well, I just need to get the hitachi kc-90 remote. Thank you very much for the help