Sepura firmware flash tool

Hey,
Im lookin for a Sepura tool to flash another firmware - for the actual radio SRG 3900, is a SIM card needed ... but I dont have one. So is there a chance to flash this radio for using it a a "normal" tetra radio?

Many thanks for your posts!
Best regrads
Martin

Hi everybody,

ist there a chance to flash a sepura 9000 series to a clear firmware for commercial using. Software sepura radio manager 2 is fine to work with this system.
is a special firmware needed?

Best regards!

:D