Hello guys gari Yako Iko na radio kama hii and it olways tells to insert the correct map disc or SD card Niko na solution have a software that will make back to normal and you will continue listen to your music for map disc its only 1k and for SD card it's 3500 and you will never have such a problem again most of this radios olways ask for SD card or map disc ukitoa battery but tukieka hiyo software it won't disturb you again it's a permanent solution