How do I go about updating the Stock rom portion of my D4 to the JB OTA? I have seen bits and pieces about how to do it, but I don't want to brick my device or lose my CM10.1 (3/16). So I figured a basic walk through would help many users. Details: Safestrap 3.11 with recovery installed Stock rom - Untouched (I don't think I rooted it) Slot 1 - CM 10.1 (3/16 build Do not think it is kexec) Can I just flash the JB OTA while booted in Stock or do I have to Fastboot /RSD? Does the JB OTA kill my CM 10.1 (because I think it is an ICS kernal)? Where do I get Kexec builds for CM 10.1 (I heard that CM hosted were not Kexec)? Thanks in advance.