I have changed the MAC address of a Google compute engine vm. After that, I can't access from rdp to that vm any more. The vm is not pingable also. I've tried to access from serial port with no luck. It just dropped me to a SAC console and I can't revert the change from SAC. I've also tried to make a snapshot of the hard disk and create a new vm with that snapshot. The new vm can't be pingable also.
Is there any way I can do to recovery the machine or at least I can get the data on the disk?