Prime SE OTA firmware upgrade

Hi all. I have noticed that there is a OTA firmware update for Prime SE V1.5B.
I have received my watch in the end of June, and comes with V1.2B 25122019
When i try to update to these V1.5B it says that the device has the lateste firmware installed.
Before i flash i would like to know why cant i update by OTA ?

Hi all !!! In my last post i anounced a problem with the OTA update of V1.5B in Portugal zone.
Finaly today, i had the OTA update done. Thank you @KospetPrime .
For your knowloged @pablo11 @G1NT0N1C @Dr_Andy_Vishnu