A:1、Click Home button, choose 【ES File Explore】


2、Click 【Home】， and then click【DP】

3、After entering the DP menu, choose the SN No. file 9014XXXXXXXX--FUNCTION--MILEAGE,
At the bottom of this file, there will be a 【en.cfg】, find it and delete it.
4、Re-start the device.
5、Enter 【upgrade】menu, then choose any of mileage correction software, download it.

A:How to Solve "Unfortunately, DiagProgram has stopped"
If your device's update has expired, here is the solution.
Clear the cache. (Please do not reset the device, otherwise, program will be lost, it will not work again unless buying another year of update subscription.)
If your device's update has not expired, here are solutions.
Option one: Click "apk" to update.
Option two: Clear the cache.
Option two: Reset the device.

A:1. Turn on OBDSTAR X300 DP Plus
2. Click "DP" in the menu
3. Click "User Center"
4. Connect the power and charge it (register password appears automatically)
5. Input the user information (distributor code: 860755B1 or 0086A002)

A:Yes, x300 dp plus can support your car and the function you need.

A:Instrument Cluster Activation is a bonus feature of OBDSTAR X300 DP plus/key master DP.

A:Yes X300 DP Plus C can change mileage on your car.

A:Here comes with customer feedback:  OBDSTAR x300 dp plus is ok with Delphi FIAT, but for Marelli doesn’t cover all software version. It reads EEPROM ok, but after that said EEPROM verification error. Done with other programmer (zed full).
 
Check the obdstar Fiat Marelli key precoding tips below:
 
It works absolutely fine. Obdstar is flawless with fiat. User error due to bad keys we expect.
You must use the correct remote or the buttons will do different things.
There are Delphi remotes and Marelli remotes.
Both are available aftermarket.
You must use the correct remote or the buttons will do different things.
If no buttons work then the key is 100% faulty.
obdstar x300 dp plus full it works very well on psa Renault vag fiat. It’s the cheapest on market.  obdstar it works for me everytime aftermarket or original remote.
Chinese remotes/keys have a lot of problems with the Mareli Fiat. Doesn’t work with Keydiy or Xhorse keys either.
Best is to buy 2nd hand original, change PCF and enjoy fully working key without any issues.
Or use silca key. always silca key works really good quality. Slice key is 2/3 times price but works.
So use original/slica keys for Fiat Marelli type and chinese key for delphi.

A:
Here’s the working solution to recover / reset forgotten password of OBDSTAR X300 DP PLUS Key programmer, so that the user can enter the home menu.
Look at the two images below showing the user forget his power-on password and can’t enter the operation menu.

OBDSTAR chief engineer replied:
We can’t see your lost password, you can renew the tablet, however, there is a risk of renewing the machine: if X300 DP PLUS has important data, it will be lost. After renewing, the tablet software will be the same as that of the new one.
This is the procedure to renew X300 DP PLUS:
After the tablet is turned off, copy the device program to a memory card and plug it in the tablet and turn it on again (this page will appear a lot of English words, until the English word “succeed” appears at the bottom, if not, continue to wait until the word “succeed” appears, and then shut down and take off the memory card, and then turn on the tablet.
If the English version appears when you turn on the tablet, you need to log in to the settings with your username and password after connecting to the Internet, and then go in and upgrade again.
Here is the renewing program content:
For the x300dp plus firmware reflash program, if you need, please contact at
https://www.obd2eshop.com/ (WhatsApp: +86 18054815707) to provide.
PS, it is up to you if you wanna set the power-on password or not. You’d better set a password that you can remember easily.

A:
Offering the solution to OBDSTAR X300 DP Plus “[core03.bin] Load exception, error code: -101” (the error message is shown as below), especially after your subscription was expired from months.
PS: OBDSTAR X300 DP Plus = key master dp plus (green color full touch pad).
2 steps to solve the problem:
1. Click on”ES file browser” –local–Main directory–DP-serial number-Resource-core03.bin
2. Copy the file of core03.bin to TF or memory card
Good to know:
When your OBDSTAR X300 DP Plus subscription was expired, highly recommend you subscribe the newest update service so that you keep with the newest car models and functions.
Hope it helps!