How to use OBDSTAR X300 PRO to change mileage on Volvo S80

Here's a successful test of  mileage adjustment on Volvo s80 ’2008 

Tool used:OBDSTAR X300 PRO3

Starting.....

km before adjustment: 535220km

first, select the model: volvo s80 2008

check the connection of x300 pro3 and the car

select VEHICLES->MILEAGE ADJUSTMENT->OTHER MODELS->OTHER MODELS V30.51->VOLVO->S80->->07-

then, change mileage

select Mileage adjustment

switch ignition on, then switch ignition off

OBDSTAR X300 PRO3 is reading mileage...

input the name of file to save: 12300000

then the system displays the input value

X300 PRO3 reads the current mileage: 53520km, confirm to go on

input the new mileage: 73520

OBDSTAR X300 PRO3 is adjusting the mileage

after operation success, then dashboard displays the new mileage also.

Done!

source:http://blog.obdexpress.co.uk/2016/08/09/volvo-s80-mileage-adjustment-using-obdstar-x300-pro3/