Motorola GM1280 (issue)

In need of some desperate advice, I have a motorola gm1280 that is displaying codeplug err on the display, Is they anything I can do to get the radio to spring back into life, It's a UHF version. I've got copies of various CPS's in the hope that someone can advice me on hopefully getting the radio to work.



Thanks In advance

Motorola GM1280 (issue)