OBDSTAR X300 DP PLUS software loss processing method

After update obdstar x300 dp plus,the meter adjustment or immo menu dispear, How to solve?

1.Enter Home button, choose [ES File Explore]

2. Click [Home], and then click [DP]

3.After enter the DP menu, choose the SN No. file 9514XXXXXXXX--FUNCTION--MILEAGE,
At the buttom of this file, there will be a [en.cfg], find and delete it.

4.Re-start the device

5. Enter [upgrade] menu, then choose any of mileage correction software, download it.