annaaddictive

Hello there!! Just a quick question, I have the radio code for my AX but can't seem to enter it.. I disconnected my battery which prompted me to enter the code on the radio. I had a few incorrect attempts and now I can't get it back to the input code mode - it still has the incorrect code showing on the display, rather than "code" that it shows when it's ready for the right code to be entered. I have tried disconnecting the battery again but this hasn't worked for some reason!? And I have also tried pressing those three small buttons to the top right of the radio together, which has previously seemed to work to get it back to "code". Any help would be appreciated!!