Patching system image unconditionally... CM12.1

I have downloaded this recovery and succesfully installed it. Then I downloaded this custom CM12.1 mod for Xperia M2. When I wiped my device and started to flash the ROM it said Patching system image unconditionally... Now I am waiting for my phone to shut down when it runs out of battery. Please can you give me any way how to fix this. I really want this ROM. Maybe because I forgot to update bootloader. Emma doesn't work. When I open the startup window pops up and then closes but the proccess is still in the task manager

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