I have a bit problem with my Samsung galaxy a9 2016 sm-a9000. I can't find custom (non official) firmware for my device. So, why i need this firmware - i can update firmware from sd card only (i not have PC or notebook. I have Only my device and sd card) . But official firmware unavailable install from sd card. Please give me firmware which i can install from sd card. Thank you! And sorry for my english.