You can't downgrade to CID52. CID is a security measure implemented by SE to prevent people from tampering with firmware, etc. Changing CID53 to CID52 is like a bank robber saying he wants to change the door on the vault from hardened steel to wood so that he can break into it. CID52 is like the wooden vault door, and CID53 is like the steel one. All we can do at this point is wait for the genius community members to find out a workaround (which they have - See JDflasher/Far and XS++ development)