Sory for my english. i have problem with my moto x. I instaled 4.4.2 firmware but i want to dowgrade now for 4.4. When i try, i have problem with gpt file or something that. When i instal o2 4.4.2 version everything is ok but when i try instal 4.4 always i have the same problem. What i have to do if i want to dowgrade firmware?