Kw99 pro / all call w1 firmware flash file

If you can do all the things you mentioned it was nothing to do with flashing firmware.

If you purchased this from a dealer, I would return it and get something newer.

As I said before, this watch has not been made since late 2018.
It’s very old.

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thanks man
I will try to contact with him
and thanks for all of you guys

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