Helpful Verizon Codes

Regarding the *228 codes (*22880, *22899, *22800)...

Is there a more verbose explanation of what these codes do and why one would use them over the standard *228 update alone?
 
Isn't there also a code to type in on a lot of phones to find the software info and warranty date info? I can't remember it... it was like #(six digits)*
 
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