I am looking for firmware for ODS-4000CIV (possibly also older ones).
My current firmware is 1.30 (~960KB in size)
This receiver is known to be a clone of ODS-3000 according to various forums. However, none of the ODS-3000 firmware work with it. I get the number 5 on the display when the download is finished, and need to reboot the receiver to restore the original firmware.

Best regards.