[dimitar]

Yes all by OBD. I do not remember what first. I've tried several times. Always I disconnect battery after correction. When old mileage not return, its OK.
Next step is reset inspection/oil message, I use Diagbox.

x300m
Chrysler 300 2011-   OK, km and hours.

Tryed today 208, didnt work. 
BSI backup read eeprom & flash went fine
change BSI milage got message that this bsi is not supported yet.

DASH - cant enter service mode

i did 208 bsi by obd and dash manualy

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my x300m 1-year free update expired, how to pay for updates ?

Better dont pay for  downgrades

Can connect with the saler

why whats the point
how can the seller help??   ????
obdstar discontinued x100pro but they still sell the leftovers
worst spent money ever