Batboard

Picked up a box of CP200 uhf handies but all are a low bandsplit. CPS reports 403.000-440.000. Models are H50QDC9AA1AN
Firmware version R03.00.02. Codeplug version 03.00. Can any firmware substitutions be done to move these into the higher portions of UHF band. With a 440. top can't even get em into good ham use.
Any thoughts ?
Thanks
73 de Jeff-N0SIH

Sorry Jeff, updated firmware won't resolve this. You have a hardware issue.

I thought as much. Thanks for the reply Dave.
Jeff