Here is Available Microsoft Lumia 430 (RM-1066) Latest Firmware. you know already flash file is most impotent part of your device. if your device is not working properly you need to flash or upgrade your device firmware. if your call phone is dead. phone is slowly working you need to upgrade your firmware.
at first check your smart phone hardware problem if you find any type of hardware problem. first fix this problem than flash your call phone. we are always share upgrade flash file. so don't forget like and share with your friends.