WD My Cloud Mirror Gen1-Remove DSM-wdmc-mirror-8451.pat

Hi

Recently installed Synology “DSM-wdmc-mirror-8451.pat” on my WD My Cloud Mirror, Gen 1.
Any assistance to revert it back to the original WD Firmware / software will be greatly appreciated.

Thanks in advance to all the guru’s out there.

Hopefully an experienced User will be able to assist.