How to tell if LAUNCH X431 Diagun III is clone or original

Launch is a trustworthy brand in OBD diagnosis field. There are so many Launch X431 clones, especially Bluetooth Diagun III flooding into the aftermarket. Here gives some tips on telling the original Launch X431 product from clone?

LAUNCH X431 Package Box


  1. Original X431 package box is bright yellow color, the clone one looks tarnished;
  2. The original X431 “LAUNCH” Logo flashes in bright red, while the clone one looks darker;
  3. Original Launch X431 package box is made glossy smooth, but the clone is roughly made.

Launch X431 Super 16-PIN diagnostic connector


  1. The original X431 Super 16-pin connector comes with Serial Number, but the clone does not;
  2. Original X431 Connector has bright QC mark, the clone look darker;
  3. Original connector’s screen print turns to grey, but the clone one is in black.
  4. The two lines below original 16-pin connector screen print marked in red, while the clone is in purple color.
  5. The SUPER 16-pin connector box has S/N mark, while the clone one does not.

NOTE: Please buy original LAUNCH X431 product from authorized dealer.

Test result for X431 Diagun III Bluetooth and Main Unit

As is known to us, Launch X431 tools series enjoys great popularity in the field of auto diagnostic tool, especially lovely used by each car workshop owner. But some fans user may met some problems when keep it working for a long time. Here take X431 Diagun III as an example.


Maybe you lost your cables, maybe your PDA machine is old, and maybe your bluetooth connector is out of work. It is indeed a big problem. The item is so good, while it is difficult for us to drop it out.

How can we do then? I recommended one super LAUNCH X431 supplier from China Eobd2 shop. Car diagnostic tool is a super agent of Launch Company. For example, launch x431 diagun, they offer the full Diagun products. But also, they offer diagun spare parts as Diagun main unit (PDA machine), Diagun bluetooth connector, Diagun updating software and all kinds of Diagun cables for all models.

Now, how do you think about it? Do not worry if your diagun does not work. Hereby, share you the way to test whether it is a good matching of both main unit and bluetooth on you diagun. Please do the following procedures:

1. Inside TF card in sock of diagun main unit;
2. Connect your diagun with your car. You can connect via bluetooth connector or diagun main cable;
3. Turn you diagun main unit on, run the function of wireless diagnose. Select one car model such as BMW;
4. Click on button of “SET” on the desk of diagun main unit, select bluetooth connector;
5. Check the light status:
a. Light keep on, communication finish. Bluetooth matched well with main unit;
b. Light flashing, communication error. Please continue check.

Note: Please note that not each bluetooth connector can matched well with any main unit. It depends on the same series number. Please make sure that the software can matched well with you diagun bluetooth connector.

How to change Launch X431 DIAGUN III car icons?

Launch X431 DIAGUN III now is up to 20 % available for €515 with authorization certificate in

The following part is the guide for how to change the Launch X431 DIAGUN III’s car brand icons to full icons. Users are required to change icons when you run an upgrade. DIAGUN 3 has 150 icons in total.

Step 1: Download the LAUNCH X431 DIAGUN 3 NEW ICONS.rar file
Step 2: Extract the rar file to Local Disk C:/
Step 3: Insert the Micro SD card into computer via USB port
Step 4: Open LAUNCH X431 DIAGUN 3 NEW ICONS.rar file located on C:/folder
Step 5: Open the “LAUNCH ICONS CHANGER.bat” file
Step 6: The car brands icon will change into full icons

The process will only change full icons but nothing else will be affected. The procedure is based on English version software, if you want to change car brand icons into full icons into your language, please rename the icons rar file and bat file located in C:/LAUNCH X431 DIAGUN 3 NEW ICONS into the language you want to do.



Compare with Tuirel S777 and X431 DIAGUN III

Both Tuirel S777 and Original Launch X431 DIAGUN III diagnostic tool are enjoying great popularity, but how to make a choice between them? What is the difference between S777 and DIAGUN III. Following part are significant for those who are confused about which to purchase.

Item Tuirel S777 X431 DIAGUN III
Image  tuirel-s777-retail-diy-professional-auto-diagnostic-tool-with-full-software-120             launch-x-431-diagun-iii-120
Language French, English, Farsi, Portuguese,  Serbian, German, Italian, Arabic, Polish, Spanish, Greece, Korean, Czech,  Russian, Turkish, Japanese French, Spanish, Simplified Chinese, English, TraditionalChinese, German, Italian, Japanese,

Russian, Korean

Update Online update Online update
Function Basic diagnostic function, DataStream, key programming, ECU programming, injector programming etc Basic diagnostic function, wireless diagnostic,

Support toprint our vehicle fault data with a mini


Feature High definition touch screen display, high frequency of update, faster and stable diagnostic speed, alternative 46 car software Better battery design, high frequency of update,

Long stand-By time

Vehicle list Aust ford, Audi, Benz, BMW, Chrysler, Daewoo, Daihatsu, Euro ford, Fiat, GM, Holden, Honda, Hyundai, Jpisuzu, Kia, Lancia, Land Rover, Mahindra, Maruti, Suzuki, Mazda, Mitsubishi, Nissan, OPEL, Perodua, Peugeot, Porsche, Proton, Renault, Vauxhall, Romeo, Rover, Saab, Skoda, Smart?Toyota, USA Ford, Volvo, VW, Jaguar, Citroen, OBDII, Seat, Sprinter, Ssangyong, Subaru, Demo. America: America Ford, Chrysler, GM, Acres, INFINITI, Lexus.Australia: Australia Ford, HoldenBrazil: Brazil GMIndia:Indonesia Daihatsu, Indonesia Suzuki,

Mahindra, MARUTI,TATAJapan: Daihatsu, Honda, JP

Isuzu, Mazda, Mitsubishi,Nissan, Subaru,Suzuki, Toyota





Transporter-Class, Volkswagen, Volvo




JAC,Jiangling,SGMW,Tianjin,Xiamen Golden, XinKai, ZhongShun, Zhongxing, ZOTYE

Korea: Daewoo, Hyundai, Kia, Ssangyong

Malaysia: Perodua, Proton

Russia: GAZ,VAZ

S.Africa: S.Africa Opel

Thailand: Thailand Isuzu

Diesel vehicle 12V 12V
Bluetooth No Yes
Price €295 (on €490 (on


They have something in common. Both S777 and Launch X431 DIAGUN III can do well diagnostic function, supports frequent online update, large screen display.

Tuirel S777 supports more language than Launch X431 DIAGUN III.

Launch DIAGUN III covers much more vehicles makes than Tuirel S777.

Tuirel S777 is a little low-cost compared with DIAGUN III.

Apart from basic diagnostic function, S777 can do other functions like ECU programming, key programming etc, while DIAGUN III cannot. DIAGUN III is capable of doing wireless diagnostic via Bluetooth while S777 cannot.

DIAGUN III is compatible with a mini printer which can print put the fault data while S777 does not.

Tuirel S777 is better for DIYers and DIAGUN III fits more for experienced technicians.

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Get Launch X431 V for Six Reasons

Do you know Launch X431 V (X431 Pro) Wifi/Bluetooth Tablet Full System Diagnostic Tool?How much you know about it?Do you know why so many people choose it even though it is expensive.
Here I want to share some simple reasons with you.

1. New operation interface design , more friendly interface and much easier operation
2. Supports wifi/Bluetooth, one click update, allows you to update software any time and any where freely.
3. Supports 72 car brands about 220 car models from European, USA and Asian.
4. Full diagnose function and fast running speed,Android System
5. Multi-language: English, Spanish, French, German, Portuguese, Italian, Japanese, Polish, Russian
6.Better replace X431 IV and X431 Diagun iii

Do you agree with me?If you have any problems about X431 V pls visit our official,feel free to contact us!

New update Launch X431 software add new features

Three newly software updates for x431 series in May 5th, including Honda v44.60, EOBD diagnostic software v22.24 and Chrysler v28.30. X431 series newest software for like launch x431 IV and X431 diagun III users are good news.

What features are new added? Let us have a look one by one.

X431 series Honda diagnostic software v44.60

This new version of software totally launched 16 languages, including Simplified Chinese, German, English, Spanish, traditional Chinese, Italian, Japanese, Polish, Russian, Turkish, Greek, French, Korean, Arabic, and Persian.

It adds new mode of diagnostic support on ACC, D-DPS, EDLC, PAWS, and ESB system. Besides, it improves the basic functions on TPMS, H-IECU, EVPS and SH-AWD systems.

X431 series EOBD diagnostic software v22.24

It revises the Japanese and English dynamical text messy codes and display error.

X431 series Chrysler diagnostic software v28.30

Chrysler diagnostic software v28.30 is available with English, simplified Chinese, Traditional Chinese, French, Spanish, Korean, Portuguese, Arabic, German, Italian and Turkish.

V28.30 adds new CAN protocol after 2013, including ASCM, DCU, ELSD, EPB, EPPM, ESL, and FFCM systems; and all basic functions, including data stream, version information, specification and action test.

Adding CCD protocol, DDM, MSM, OHC, PDM, SKM, SRS systems and data flow, version information, read and clear codes. It also adds check/inquiry function of action test data flow.

It perfects CAN protocol after 2013, BCM, ABS, CCN, ADCM, AFLS, AHLM, AMP, ASCM, CSWM, CTM, DCU, DDM, DMRR DTCM, DVD, EDM, ELSD, EPB, EPPM, EPS, ESL, ESM, FDCM, FFCM, HIDT, HVAC, and WCM, basic functions including data stream, version information, specification, and action test.

Finally, Chrysler diagnostic software v28.30 improves CCD protocol, TCM, ABS and BCM system basic functions, and optimizes data flow refresh.

Three newly software updates for x431 series in May 5th, new added features and improvements are all listed.