Launch X431 EasyDiag 3.0 Plus – Comment télécharger, enregistrer et mettre à jour

Most people prefer EasyDiag 3.0 Plus to a one-to-one kit is because when they change their car in the future, all they need to do is to buy the software for their next car instead of buying a brand new diagnostic kit.

Compared with LAUNCH Easydiag 2.0 Plus, Easydiag 3.0 Plus is better in the following aspects.

LAUNCH Easydiag 3.0 Plus includes 2 free vehicles’ software + DEMO + EOBD

LAUNCH Easydiag 3.0 includes hardware+ EOBD+ DEMO

LAUNCH Easydiag 2.0 Plus VS LAUNCH Easydiag 2.0:

LAUNCH Easydiag 2.0 Plus includes 2 free vehicles’ software + DEMO + EOBD

LAUNCH Easydiag 2.0 includes hardware+ EOBD+ DEMO

Notice: Demo and EOBD also belong to one of the car model. if you downloaded Demo and EOBD first, then you cannot download other car brand software for free, we suggest you download the car software you need first, then download Demo and EOBD for free.

This is an informative post on how to use original Launch easydiag 3.0 for IOS / Android incl. Android / IOS app download, registration, activation, login, buy the car brand software, download car brand software, diagnostic, update etc.

How to Use Launch X431 Easydiag 3.0?
Main procedure:

1.Download App




5.Buy car software

6.Download car software


Here we go one by one.

Download easydiag APP
IOS: In the app store, search “EasyDiag” .

Android: In the google play, search “Easydiag”

Step 1: Turn on your Smart Device.

Step 2: Go into the Google or Android Play Store:

Google Play can be found in the following url as well:

Step: 3: Input the keyword “Easy Diag” in the search bar and then click the Easy Diag software icon to download.

p 1



Register -> Active -> Login



Buy the car software what you want

1) One brand car software price: 50USD

2)3 brand cars software price:99.95USD

3)5 brand cars software price: 149.95USD

New user get free EOBD software.

After the free-update expire, the update fee is 29.95USD






Download the car software and update
After pay the car brand software successfully, you can download them.

Update method:

On the home page, click on the “Software upgrade” to update all the car brands you paid.
To update one single car brand, please go to the specific page and quickly enter the “Software upgrade” page.



1) Accessible systems: Engine, ABS, SRS, Transmission and more

2) Diagnostic Functions: Read and clear codes and view enhanced live data etc.

3) Diagnostics Feedback:

If you met any question on the diagnostic, please provide the dealer with the Launch Easydiag 3.0 serial number, car brand, model & year.



1 .Communications error with vehicle ECU?

Please kindly check:

1 Whether the dongle is properly connected.

2 Whether the vehicle ignition switch is on.

3 If all checks are normal, send vehicle year, make , model and VIN number to us using Diagnostic Feedback feature.

2.Failed to enter vehicle ECU system?

Please confirm:

1 Whether the vehicle is equipped with the system.

2 Whether the tested system is electronic control system.

3 Whether the dongle is correctly connected.

4 Whether the vehicle ignition switch is on If all checks are normal, send vehicle year, make , model and VIN number to us using Diagnostic Feedback feature.

3.The diagnostic application is failing?

1 Press the Home key to navigate to the home screen.

2 Select “Settings”->“Apps”.

3 Select the application name from the APP list.

4 Select “Force Stop”,and then tap “OK” to confirm.

5 Select “Clear Date”, and then tap “OK” to confirm.

Precautions on using easydiag 3.0

1. This device is a precision electronic instrument. Handle it with care,Avoid dropping.

2. This device only operates on the 12V passenger vehicles equipped with OBD II management system.

3. To avoid damage to this device due to frequent use, you are recommended to use the included extension cable to connect it to vehicle’s DLC.

4. Turn off the ignition switch while plugging/unplugging the device.

5. Be sure to always remove the device once testing and /or diagnosis is complete,Failure to do so may result in a drained or weakened battery.