Launch X431 V 8inch Customer Share & User Feedbacks

[Launch X431 V 8inch Software Upgrade Failed] Solution


I bought the Launch X431 V 8.0 tablet diagnostic scanner and it arrived yesterday. Today when i try to update X31 V tablet, it display an error “Upgrade failed”


That’s because you have not registered the scanner.
Please provide the S/N serial number to your dealer and check if you device has been activated.
If not have being activated, you will failed to update Launch X431 V 8 inch software.

[Launch X431 V 8.0 inch Tablet Error DiagnoseMain ID: -5] Solution


I try to diagnose Hyundai with Launch X431 V 8.0 inch diagnostic scanner, after i enter Hyundai menu, it showed me error “DiagnoseMain Err ID-5 Failed to obtain firmware information.

Possible reasons:

1.Firmware does not work normally. Please retry after power off and on again.

2. Firmware program is abnormal. Please update it.

3. Firmware type is incorrect. Please contact local dealer to storage/emulated/0/cnlaunch/XDiagPro3/968590120906/DIAGNOSTIC/VEHICLES/VW/V27.80/”


Go to Menu and select Firmware Update to run an firmware upgrade.
Problem solved.

[Launch X431 V 8.0 Reset to Factory setting all blank] Solution


I’ve pressed the factory reset button on Launch X431 V 8.0 tablet main unit by mistake, then nothing displayed on the x431 v software, all blank, what should I do?

Login into the official website with S/N and activation code which can be found in the password envelope.
Then Download the Launch X431 V application (APP)
Problem solved.

How to Register & Update Launch CReader 419 OBD2 DIY Scanner ?


How to Register & Update Launch CReader 419 OBD2 DIY Scanner?


The tool can be updated via USB cable.
Pls make sure the PC has an Internet connection.
1. Go to and download the update tool to the computer.
2. Decompress and install it on your computer (compatible with Windows XP, Windows7, Windows8 & Windows10)
3. After installation, connect one end of the USB cable to the USB port of PC, and the other end to the tool.
4. If a newer version is found, a screen similar to Fig A will appear.
5. Launch the update tool on your PC, [Device upgrade] box will appear.
6. Choose the desired interface language and then click [Device Update] to enter update center.
7. Choose the software version and then click [Update] to start updating.
8. Once update is complete, a ‘Upgrade success’ message box will pop up. Your tool is now ready for use.


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How to Use OBDSTAR X300M Mileage Programmer ?

How to Use OBDSTAR X300M Mileage Programmer ?

1.Connect OBDSTAR X300M to you car via OBD2 scoket.


3.Select your car model->initializing…->authorizing…

4.Select your car model and year->MILEAGE ADJUSTMENT

5.Screen dispaly “communication”

6.Enter a filename to save

7.OBDSETAR X300M managed to read the current mileage

8.Input new mileage

9.Adjusting mileage…–>adjustment complete

How to Update OBDSTAR X300M Odometer Correction Tool?

How to Update OBDSTAR X300M Odometer Correction Tool?

1. Download the update tool and diagnostic software on ,double click,then go to the next step.

2. Click “Next” –> Click “Next” –> Click “Next” –> Click “Finish”

3.Above we have installed update tool,and the start software updating.
After Update Tool installation completed,click the update tool software icon on desktop to start the update tools.

4. Open update tool–> Click the source menu,choose the program you want to update,click it and confirm.

5. Click and select all the software the click “update”

6. Wait for several minutes the the updating finished

OBDSTAR X300 DP Pad Registration & Update FAQs

OBDSTAR X300 DP Pad Customer Share:

Part 1 – Obdstar X300 DP Registration FAQs:

Q: OBDSTAR X-300DP PAD failed to register, saying “876: Sn unregistered product sale”.

A: The Obdstar engineer will help you out. Contact the dealer first!
Q: X300 dp registration failed!

A: The E-mail might be incorrect
Q: OBDSTAR X300 DP register: should i set user name and password myself?

A: Yes, please fill in user name, password, e-mail to register:
Part 2 – Obdstar X300 DP Update FAQs:

Q: Obdstar x-300 dp update error: F002: Failed to get download list!

A: Please reflash the network.
Q: Tried to update X300 DP but failed! Go to Download center, then click on the Download, but the OBDSTAR SETUP application can not be used.

A: X300 DP pad should be updated via One Key Upgrade on the pad; just click to update. it cannot be done via the PC.
Part 3 – X300 DP Obdstar Functions & Models FAQs:

Q: How to change x300 dp language?

A: Go to Settings, then Language and Input. Optional languages: English, simplified Chinese, traditional Chinese
Q: Can X300 DP work on brilliance V5 2013 for PIN code reading and key programming?

A: Yes, it can read pincodes and program keys without password
Q: X300 DP full configuration can reset SRS, change mileage to honda, hummer and bmw?

X300 DP obdstar only support Honda two models to reset SRS; and Hummer H2 2003-, H3 2005 to change mileage. For BMW, there is no solution with X300 DP.
Q: Can X300 DP program a new key to Hiace when all keys are lost? Support G and H chip?

A: It support Hiace immobilizer after the year 2006. the G chip is supported.
For Toyota H chip, 72 pin is supported; for 8A chip, it needs to replace the immo box.
Q: X300 DP:Does this support 2016 Dodge ramn1500 With the mileage correction? Does it change just the digital display or the internal computer as well?

A: Sorry, the 2016 model is note available now.
Q: X300DP: Can read pin code for Hyundai by Obd2

A: Sorry, it can’t ..
Q: X300 DP: Can do reset immo for Toyota H key?

A: Yes, you can do it.
Q: Toyota Corolla 2005 (120 chassis) and all keys are lost using obdstar x300 dp… is it ok?

A: Yes.
Q: Does it work on a 2015 chrysler 200 to reprogram ecu

A: No, this model cannot be supported now.
Q: Can i use chrysler pin code OBD read by X300 DP Obdstar to program a smart key to Nissan 2012 when it lost all keys.

A: Yes, you can have a try.

Q: OBDSTAR X300 DP supports bmw 550 d 2016?

A: It depends on the type of its dashboard.