I need a tool that can cheksum correct in write,
Any original tool that supports the ECU does it. E.g. Flex.
The real answer is that no tool can correct "checksum" or rather RSA signature on this ECU, except for OEM tool with smartcard inserted.
The OBD flash on these ECU's is done by using an exploit.
So if you think you are going to find some tool that will make you a file that you will flash by ODIS, then that will never ever happen.