SM-G531F Heribatubara Friday 17 February 2017 Instructions Extract (unzip) the firmware file Download Odin Extract Odin ZIP file Open Odin Tool Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons) Connect phone and wait until you get a blue sign in Odin Add the firmware file to AP / PDA Make sure re-partition is NOT ticked Click the start button, sit back and wait few minutes Tutorial on Youtube : Here SM-G531F_XXU1APC2_SER1APC1 SM-G531FXXU1AOH1_DBT1AOH1 SM-G531FXXU1AOH1_SER1AOH1 SM-G531FDDU1AOH2_G531FODD1AOH2 SM-G531FDDU1APB2_G531FODD1APB2 SM-G531FXXU1AOH1_G531FOXX1AOH1 SM-G531FXXU1AOH2_G531FOJV1AOH2