Hey there!

My dad just bought a phone with this type of software and he wants to update it so it won't show two clocks anymore (and this is one of the disadvantages )
So - my main question is - what version should I choose? As long as his native is Polish I want to choose something from our region, e.g. Secured URL
Is it safe to use ODIN3 to update this phone from G920FXXU3COI9 XSG to something new?

Best regards