This shorcut can be used in 2G too, copying in /private/var/mobile/documents/bootlace the correct idroid release (http://idroid.nickpack.com/iDroid/official/iDroid-Project/2G/iDroid-1.0.3-MoJo-2G.tar.gz), using scp command from your PC (copy over ssh).
This idea is useful when you reinstall frecuently idroid.