The Max ODO dispaly for iGS130 is 99999 km.
When the ODO exceeds 99.99KM, the display will start to show in integers without radix point, like it will show 100 KM, or 200KM.
When the ODO reaches the max dispaly 99999 km, it will not change anymore. at that time, you may try to format the device to clear all the data.
View the article to clear all the data Clear Data/Format/Make a Factory Reset for iGS130