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1. Enter Home button, choose 【ES File Explore】
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- Click【Home】, and then click【DP】
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- After entering the DP menu, choose the SN No. file, for example, 9514XXXXXXXX–FUNCTION–MILEAGE, at the bottom of this file, there will be a 【en.cfg】, find and delete it.
- Re-start the device
- Enter 【upgrade】menu, then choose any of mileage correction software, download it.
- You can see the mileage correction function and the menu appear on the X300 DP PLUS.
Good luck!
Source:http://www.mileageprogrammer.com/obdstar-mileage-adjustment-function-is-disapper/
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