Customer feedback for when they use OBDSTAR X300M adjust the mileage, and yes,it is ture, but it is in the acceptable range.
It have the related error, such as,
the real mileage for his car is 2000KM, but the device connect and read the 33113KM, this is a big mistake,
what should i do?
X300M Mileage Correction Tool have 10KM mistake when read for your car, if expand for this, you should reset the device and power on again
Then input the mileage you want, it will be ok.