WSJL659

I already searched the forums and didn't find the answer I was looking for. I recently purchased an Anytone AT-878UVii and I noticed that the box now states the factory frequency range on the UHF side is from 420-450mhz. I know the earlier units with the same model number were listed on the box from 400-490mhz. Is this the same unit as they were before, and still capable of being opened up to transmit and receive "out of band"? I am thinking the packaging has simply been updated for US sales. Has anyone unlocked a recently manufactured unit with the 420-450mhz range listed on the box? Thank you in advance! -Adam