I returned to the Advanced menu and checked everything again. It will not even accept period or any other characters accept numbers and the hyphen. I put in a support email to Uniden. Hopefully they can tell me what I am doing wrong etc.
Again, Thanks for trying.
Typed mine the same way as above , and serial number is correct, even tried a restart , no go for me , getting annoyed about throwing 50 bux in the trash. ..