HELP Recognising Pipo M6pro antenna for coaxial cable mod

[giouncino]

Here are some pictures of the Pipo M6pro.
Is there anyone that is able to recognize coaxial cables to which antennas are related to?

In the picture I can assume that the long right is the GPS antenna (because it is not present on m6 non pro)
The other on the right I think it is the Wifi but I'm not sure.

The last one on the bottom could be related to Bluethooth (??? not sure at all)

And which is the antenna for 3G???? Is it shared between the wi-fi and 3G?

I'm asking this because the sensitivity of 3G is not good at all. Wifi is not good but barely acceptable for me....
I have a very good coaxial cable that I could use instead of the original one. It's a little bit bigger than the original, so I cannot change all the 3 cables... I need to choose.
I don't care about bluethooth. Also GPS seems ok.
If 3G and WI-fi share the same cable, I'll take two birds with one stone! But I need to be sure on which cable I'm going to change.

Any help is really appreciated.

[giouncino]

taking a closer look on Pipo M6 non pro and NON 3G, it seems it has only ONE antenna....
So seems possible that Wifi and Bluethooth share the same antenna (possible due to very close frequencies).
For this reason the antenna on the bottom of my M6pro 3G seems related to 3G module....

Is it possible???

I could try to change 2 cables...