This is Latest Version Firmware For Nokia Asha 207 (RM-954) Free Download link available here. First Check Your Device hardware problem. if you find any hardware problem on your device. at first fix this hardware problem than flash this call phone. don't forget backup your device all user data. after flash your device firmware all data will be lost. if you need any help please contact me. thank you Before flash your device at first backup your all of user data after flash all data will be wipe.