Back in 2015 when android were running whatever version they had at the time, and with oit super user access, i was able to always tra m anyone down to wothin 50 ft by using tracert in a command line followed by their phone number in the following format: ###.###.####. Right after id press enter it would start giving me gos coprdinates for sofferent cell towers and whichever tower it ended at, you could easily triangulate your target as mong as they had a cell phone and you had the number.