If you're talking about the Uniden DMA radios (which one?), they all have pre programmed quick keys that you can dump, fix and utilize. Even if you cleared memory, you can still reload it - they're kept in a protected memory area. What you cleared was, essentially, a copy.
I would first dump the contents of the scanner, then perform a reset - then when they ask whether you want to reload, say yes. When it's complete, dump that and use the contents as your guide for the file you had created earlier.