Activate Route from SD-Card - DriveSmart 55

Hello,

I create GPX Routes and store it on SD-Card -  folder \Garmin\GPX

How to activate this Routes on DriveSmart 55 ?

Generally: 

I create GPX routes on my phone and would like to import it to DriveSmart 55 (without us of PC/MAC)

(On my Garmin Dakota20 I create GPX Routes via "Maps3D" and store it to SD via Adapter)

Is there a way to do so ?