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Does anyone have a firmware file older than version 6.40 for vivoactive 4?

I suspect that starting with firmware 6.40, bluetooth has stopped working on my watch.
The clock displays that the ANT/BLUE/BT version is 0.00.
Updated to firmware version 6.50, but the problem did not go away. I am looking for a firmware file older than 6.40. I will be grateful.

0 1136901 over 3 years ago in reply to 1530856

Can you also send it to me? [email protected]