zebra/eltron p310cm card printer i installed wrong firmware

Please help i installed wrong firmware on zebra  ' p310cm'

Was in great working with 2.65 until applied the  '310i'  3.35 firmware

verence4 years ago
So, what does it now? Did it explode? Doesn't it switch on at all? Does it do anything? Did you try to restore the old firmware? Did you contact the manufacturer? ...