[Q] Activate band 20 on xt1058 topic

Hi,

I recently purchased a new xt1058 on ebay, it's the US model i belive, but LTE doesn't work in france.
xt1058 have 2/4/5/7/17 bands activated and LTE in france is 20.
Is there any way to change that ? Can I switch modem files from xt1052 rom (EU version) ?
I'm running kk 4.4.4 212.44.26.ghost_row.RCI.en.CA version.

Thanks!