Firstly dump the NAND that is on your console. U should have done this before U did anything else. Boot xell (with Xbox hooked up to router) then enter the ip given by xell into your chosen web browser. This will take u to xell FTP page where u can dump NAND, get keys, kv etc. then extract kv in jrunner as mentioned and rebuild NAND using jrunner ( guide in jrunner PDF) good luck.