I need to update CIQ firmware to 3.2.x

I assume you can't install ciq 3.2, because it's not available for f5 as you can see in this link at the bottom:

forums.garmin.com/.../connect-iq-3-2-now-available

Furthermore I think there are no more ciq updates for f5 in the future, since the HW doesn't support the new features of ciq 3.2 and later.

Stay away from CIQ and third party apps as far as you can. It’s full of bugs and causes battery drains.

Elbo said:

Stay away from CIQ and third party apps as far as you can. It’s full of bugs and causes battery drains.

I think that you've made bad experiences, but these are exceptions. Because of the complexity, bugs are always possible in all SW products, native or ciq. And in the case you detect a bug or elevated battery drain in a ciq app, it's simply possible to deinstall the ciq app.

But ciq apps may enhance the usability of the devices by calculating new or special metrics for healths or physics, e.g. running power, TRIMP, etc.. Especially, for the individual health metrics there isn't such thing that "one formula fits all".

Thank you for the information.