Yes. You can connect your Root ZX mini to a Tri Auto mini endodontic motor using a connecting cable. This will provide you with a apex locator system and preparation system.
The batteries should be replaced soon. At best, replace the batteries as soon as the battery display starts flashing. Replace all three batteries with standard commercial batteries type AAA.
The actual apical foramen and the anatomical apex often do not correspond exactly. The actual apical foramen can be located in the direction of the dental crown. The X-ray exposure then shows incorrectly that the file has not reached the apex.