Difference m005 and ElectrodesReady.bin

Hi, can someone help me with some firmware differences?
I build an MK312-BT. Actually I’m using the firmware: ElectrodesReady.bin can some one explain me the differences to the m005 patch: m005.
Actually I have no original firmware. So I can’t create a patched m005 for comparing it.
Is there a possibility to get the m005 binary?
Andy