Samsung Gear S SM-R750A

I just bought Samsung Gear S SM-R750A in a charity from UnitedWay charity event

Unfortunately it is not working properly. Able to connect the watch using Bluetooth.

Watch connecting with the help of Bluetooth. But, it is not displaying the time . I’m able to restart, poweroff, factory reset.

Most of the times when it is displaying time, all i can see is a message "unable to load data, tap to retry"

Since this is 1st gen watch, Samsung not able to help me out here.

So, thought of flashing the device. I have downloaded the ODIN, driver software and Reinstall Software. Nothing worked.

how to change the Current Binary: Samsung official to Current Binary: Custom

Please help me out..Plzzzzzzzzzz