Ohh wait I'll send u asap . It was hard finding it.
You need to unlock the bootloader first on the Chinese version.
Mine's model SM-A710FD. I've followed OP's procedure top to bottom. Odin seems to be successful:
Odin engine v(ID:3.1100)..
Get PIT for mapping..
Firmware update start..
NAND Write Start!!
RES OK !!
Remain Port .... 0
All threads completed. (succeed 1 / failed 0)
but the phone still stays in download mode saying "downloading..." with the progress bar below it stuck near the end (perhaps equals to ~98%). No activities at all. what should i do?
Flash with ODIN 3.10.7 in the AP slot.
Uncheck Auto reboot.
Load the respective file below into the AP slot and hit start.
After flashing immediately reboot to recovery by holding POWER + HOME + VOL DOWN.
As soon as the screen goes blank change to VOL UP whilst still holding the other buttons.
You should now see TWRP recovery.