OBD2 Diagnostic Tools

Problem:

Trying to make a key for a 2019 VW Polo, Normal key not proximity. 5c chip. Tried using both adapters that are in the shape of the key. Lonsdor K518 failed to read original key data with the MQB49 5C adapter.

It reported an error “Data reading failed. Error code Unlock failed ret=25”. Any solution?

Solution:

Check the connection diagram carefully. You need to solder one wire from the key circuit board to the 5C interface board, as shown in the diagram. Then try again, and it should work.

Not for all key types. For this type of key, solder 1 wire to the board.

If reading the original key data for BMW BDC2 or BDC3 fails (error code 25), check if need to solder 1 wire to the board as well.

Tutorail: How to replace the touch screen and mainboard of OBDSTAR P50, OdoMaster and iScan motorcycle/iScan Marine series devices.

Step 1: Use an electric screwdriver (or screwdriver) to remove the 4 screws securing the back cover.

Step 2: Carefully open the back cover and remove the battery cable and speaker cable.

Step 3: Use an electric screwdriver (or screwdriver) to remove the 2 fixing screws on the Android motherboard.
And unplug the antenna cable by hand.

Step 4: Grasp both ends of the Android motherboard and pull it upward to remove it.

Step 5: Remove the fixing screws on the VCI mainboard. Tear off the acetate cloth on the touch screen and display cable.

Step 6: Remove the power switch button. Then lift it upwards, open the display and touch screen cable clips, remove the cable, and then remove the VCI mainboard.

Step 7: Tear off the acetate cloth and remove the light guide. Use your hands to push open the display screen positioning latch and remove the display screen.

Step 8: Replace the new display screen and reinstall the acetate paper and light guide column.

Step 9: Pass the display and touch screen cables through the middle of the VCI mainboard, and then align the VCI mainboard with the machine’s locking screws and insert it.

Step 10: Reinstall the VCI mainboard fixing screws, power switch and cable acetate paper.

Step 11: Insert the Android mainboard into the VCI mainboard and install the fixing screws and antenna clips.

Step 12: Install the battery cable and speaker cable, and close the back cover.

Step 13: Put the rear cover screw back.

NOTE:

1. If you cannot boot or have other abnormalities after replacing the Android motherboard, pleas e contact after-sales. You need to provide your device serial number.
2. If the display is abnormal after replacing the display screen, please contact after-salesand provide your device serial number;
3. When you need to replace the VCI motherboard, please contact the dealer to synchronize your account information and provide the serial numbers of the new and old VCI motherboards.

FYI: If your OBDSTAR P50/Odomaster/iScan scanners cannot turn on even when connected to a power supply,

Possible Causes:

• Battery is depleted.
• Mainboard failure.

Troubleshooting and Solutions:

1. Connect the device to the power adapter and check whether the power indicator light turns on.

If the indicator light shows red, this indicates the device is charging. Allow it to charge for at least 30 minutes before attempting to power it on again.

If the device powers on, the issue was caused by a depleted battery. Fully charge the battery to resolve the issue.

If the device still does not power on, the problem is not battery-related.

Remove the back cover, disconnect the battery cable, and power the device directly via the mainboard (using the power adapter). Check if the device powers on.

If it powers on, the battery is faulty and requires replacement.
If it still does not power on, the issue is unrelated to the battery.
After ruling out battery issues, the problem is likely due to a faulty Android mainboard. Replacement of the Android mainboard is recommended.

2. If the power indicator light does not turn on at all when the power adapter is connected:

Try connecting the device to a vehicle’s power supply using the OBD main cable. If the indicator light turns on and the device powers up, the power adapter is defective and needs to be replaced.

If the device still shows no response even when powered via the vehicle:

The Android mainboard is most likely faulty. Replace the Android mainboard first to eliminate this possibility.

If replacing the Android mainboard does not resolve the issue, the VCI (Vehicle Communication Interface) mainboard is likely defective and requires replacement.

Problem:

Tried to diagnose a  Hino truck 2011 using Launch X431 Pro3S+ smartlink HD diagnostic scanner, but autovin failed to decode vehicle information. Any idea?

Solution:

Heavy duty does not support AutoVIN feature. 

Need to select vehicle model and year manually.

If manual selection not working, do a firmware Fix and try again.

Problem:

The software (BMW V51.66) and firmware (V12.12) have been successfully installed on the Launch Creader 2.0 BBA diagnostic scanner. However, when actually connecting to a vehicle or scanning the VIN, the system immediately displays a “Firmware update failed” error message. Also attempted a factory reset, cleared the cache, and used a mobile hotspot to perform a “firmware repair,” but all attempts failed.

Solution:

The solution goes to other Creader series scanners with firmware V12.12 as well.

Solution for Launch CRP Firmware (V12.12) update failure:

If the firmware fix fails, please first download the firmware from the Update Center and then attempt the firmware fix again.

1. Connect to the network and access the Update Center.
2. Select the firmware file (V12.12) that needs to be re-downloaded, and click “Update” to initiate the download.

• DOWNLOADBIN_CRP_12XIV2_V2 (V12.12)
• Firmware upgrade (V12.12)
• Firmware upgrade Program (V12.12)
• DOWNLOADBIN_CRE_X_V2 (V12.12)

3. On the main interface, click “DATA,” then navigate to “Firmware Fix” and execute the Firmware Fix process.

CGDI K2 key tool released new software V5.8.8 on May 7th, 2026.

CGDI K2 5.8.8 adds following key renew models:

Chryslers / JEEP / Dodge / RAM

– Jeep Wrangler 18-25 | 68416786 | NXPA1M15 | ID4A | 2B | 433MHZ

– Jeep Wrangler 18-25 | 68416787 | NXPA1M15 | ID4A | 3B | 433MHZ

– Grand Cherokee Grand Wagoneer 21-23 | M3NWXF0B1 | ID4A | 2B | 433MHZ

– Cherokee EV, Wagoneer 2024 | 2BAHD-KFW1 | 68576197AC | 29A7M02 | ID4A | 3B | 433MHZ

– Cherokee EV, Wagoneer 2024 | 2BAHD-KFW1 | 68576197AC | 29A7M02 | ID4A | 5B | 433MHZ

– Cherokee EV, Wagoneer 2024 | 2BAHD-KFW1 | 68576197AC | 29A7M02 | ID4A | 6B | 433MHZ

Hyundai / KIA

– Optima | 95440-D4100 | NXPF2951X0700 | 2016 | 3B | 433MHZ

– Genesis | 95440-B1200 | SY5DHFNA433 | NXPF2951X0700 | 2016 | ID46 | 4B | 433MHZ

– Ioniq 5 | 95440-G1050 | CQOFD01480 | NXP29A7M02 | 2023 | ID4A | 8B | 433MHZ

– K5 | 95440-L2200 | FD00840 | NXP29A7M02 | 2023 | ID4A | 7B | 433MHZ

– K5 | 95440-L2320 | CQOFD00790 | 2023 | NXPA7M02 | ID4A | 5B | 433MHZ

– K8 | 95440-L8000 | CQOFD00790 | 2023 | NXPA7M02 | ID4A | 5B | 433MHZ

– K8 2024 | 95440-L8010 | FD01330 | NXP29A7M02 | ID4A | 7B | 433MHZ

– Tucson | 95440-N9030 | NXPA7X02 | 2022 | ID47 | 4B | 433MHZ

– Azera | 95440-G8150 | NXPA7X02 | 2022 | ID47 | 4B | 433MHZ

– Ioniq | 95440-G1000 | 2023 | NXPA7M02 | ID4A | 5B | 433MHZ

– Ioniq | 95440-G1010 | 2022 | NXPA7M02 | ID4A | 5B | 433MHZ

– Santa Fe | 95440-S1540 | 2023 | NXP29A7X02 | ID47 | 6B | 433MHZ

– EV6 | 95440-CV100 | 2022 | NXPA7M02 | ID4A | 4B | 433MHZ

– EV6 | 95440-CV150 | 2024 | NXPA7M02 | ID4A | 4B | 433MHZ

– Santa Fe | 95440-S2520 | 2023 | NXPA7X02 | ID47 | 4B | 433MHZ

INFINITI

– Murano 285E3-9UH7A 2022 NXPA4M35 ID4A 5B 433.92MHZ

– Sentra 285E3-6LA5B KR5TXN3 19-23 NXPA4M35 ID4A 4B 433MHZ

– Altima 285E3-6LS1A KR5TXN1 2024 NXPA4M35 ID4A 4B 433MHZ

– Kicks 285E3-5RA0A KR5TXN1 18-23 NXPA4M35 ID4A 3B 433MHZ

– Pathfinder 285E3-6XR1A KR5TXN1 2022 NXPA4M35 ID4A 3B 433MHZ

– Pathfinder 285E3-6XR5A KR5TXN3 KR5TXN3 2022 NXPA4M35 ID4A 4B 433MHZ

– Pathfinder 285E3

-6XR7A KR5TXN4 KR5TXN4 2022 NXPA4M35 ID4A 5B 433MHZ

– Qashqai X-Trail 285E3-5RF0C KR5TXN1 2021 NXPA4M35 ID4A 2B 433MHZ

– Qashqai X-Trail 285E3-6VA0B TXN1 2022 NXPA4M35 ID4A 2B 433MHZ

– Qx60 285E3-6SA7B KR5TXN4 2022 NXPA4M35 ID4A 5B 433MHZ

– Rogue 285E3-6TA1A KR5TXN1 2021 NXPA4M35 ID4A 3B 433MHZ

– Rogue 285E3-6TA5B KR5TXN3 2021 NXPA4M35 ID4A 4B 433MHZ

– Rogue 285E3-6TA7B KR5TXN4 2021 NXPA4M35 ID4A 5B 433MHZ

– Serena 285E3-5TA2A 2021 NCFA4M35 K5 ID4A 2B 315MHZ

– Serena 285E3-5TA3A 2021 NCFA4M35 ID4A 3B 315MHZ

– Serena 285E3-5TA4A 2021 NCFA4M35 ID4A 4B 315MHZ

– Qashqai 285E3-6RR2B 2021 NXPA4M35 NXPA4M35 ID4A 3B 433MHZ

– Note 285E3-6XJ0A 2022 NCFA4M35 ID4A 2B 315MHZ

– Serena 285E3-7DA4A Slider Door 2024 NXPA2M05 4B 315MHZ

– Serena 285E3-5MP8B/5MP8C 2024 NXPA2M05 315MHZ

– Serena 285E3-5MP2A 2024 NXPA2M05 3B 315MHZ

– Serena 285E3-7DA3A Slider Door 2024 NXPA2M05 3B 315MHZ

OBDSTAR OdoMaster released new mileage correction models in April 2026.

OPEL

[Version: V41.01]

1. Add Auto Detect System function.

2. Optimized software.

TRUMPCHI

[Version: V40.18]

1. Add Auto Detect System function.

2. Add Mileage Calibration function for below type:

   • TRUMPCHI GS4 PLUS 2021 FULL TFT R7F7016033+95320

3. Optimized software.

TOYOTA

[Version: V40.66]

1. Add Mileage Calibration function for below types:

   • TOYOTA AURIS 2012- NEC+24C16

   • TOYOTA CAMRY 70 2021- R7F701406

   • TOYOTA CAMRY 70 2016- R7F701406 VDO

2. Add Read EEPROM, Mileage Calibration, Write EEPROM functions for below types:

   • TOYOTA AVANZA PREMIO 2022-2026 R7F701401

   • TOYOTA CAMRY (NEW) 2025-2026 R7F701401

   • TOYOTA COROLLA ALTIS 2022-2026 R7F701401

   • TOYOTA GRANVIA 2025 R7F701401

   • TOYOTA GRANVIA 2024 S6J3001

   • TOYOTA HIGHLANDER 2024 R7F701401

   • TOYOTA INNOVA CROSS 2023-2026 R7F701401

   • TOYOTA RAIZE 2021-2026 R7F701401

   • TOYOTA TACOMA 2024 R7F701401

   • TOYOTA TACOMA 2020- D70F3535 VDO

   • TOYOTA VELOZ CROSS 2022-2026 R7F701401

   • TOYOTA WIGO (NEW) 2023-2026 R7F701401

   • TOYOTA YARIS CROSS 2023-2026 R7F701401

3. Optimized software.

GREATWALL

[Version: V41.52]

1. Add HAVAL H6 HYBRIDE 2025- R7F701583 Mileage Calibration function.

2. Optimized software.

FIAT

[Version: V41.41]

1. Add DASHBOARD FIAT CRONOS R7F701401 Mileage Calibration function.

2. Optimized software.

ALFA ROMEO

[Version: V40.30]

1. Add Auto Detect System function.

2. Optimized software.

FORD

[Version: V41.60]

1. Add Mileage Calibration function for below types:

   • FORD C-MAX 2011- NEC+95320

   • FORD C-MAX 2011- NEC+95320 COLOR METER

   • FORD C-MAX 2008- TYPE2(MC9S12XHZ512 HIGH)

   • FORD ESCAPE 2013- MPC5645S+24C32

   • FORD FOCUS 3 2011- NEC+95320 COLOR METER

   • FORD FUSION 2013- DENSO 93C86+2XLCD

   • FORD GALAXY 2006- MC9S12DP512 HIGH

   • FORD MONDEO 2007- MC9S12DP512 HIGH

   • FORD S-MAX 2010- MC9S12XHZ512 HIGH

   • FORD S-MAX 2006- MC9S12DP512 HIGH

2. Add Read EEPROM(Backup), Mileage Calibration, Write EEPROM (Restore) functions for below types:

   • FORD C-MAX 2008- TYPE3(MC9S12XHZ512 LOW)

   • FORD C-MAX 2005- MC9S12H256

   • FORD C-MAX 2005- MC9S12H128

   • FORD FUSION 2006- TYPE2(MC9S12H256)

   • FORD S-MAX 2010- MC9S12XHZ512 LOW

   • FORD S-MAX 2006- MC9S12H256 LOW

   • FORD TOURNEO CONNECT 2006- MC9S12H256

   • FORD TRANSIT CONNECT 2006- MC9S12H256

3. Optimized software.

MAZDA

[Version: V41.41]

1. Add Read EEPROM, Mileage Calibration, Write EEPROM functions for below types:

   • DASHBOARD CX5 TYPE2(2019- BIG DISPLAY 93C76)

   • DASHBOARD CX9 TYPE3(2019- BIG DISPLAY 93C76)

   • DASHBOARD DEMIO 2018- 93C76

2. Optimized software.

VOLVO

[Version: V41.25]

1. Add Mileage Calibration(Sync CEM) function for below models:

   • VOLVO S60/V70 2010-

   • VOLVO S80 2010-

   • VOLVO S80 2010- TYPE2

   • VOLVO S80/70 2010-

2. Add Mileage Calibration(Dash only) function for below model:

   • VOLVO S60/S80/V60/V70/XC60 2015-

   • VOLVO S80/V70 2010-

   • VOLVO S80/V70 2010- TYPE2

NISSAN

[Version: V41.04]

1. Add Mileage Calibration, Write Configuration, Write flash functions for below (Dashboard Type: S6J329CLSP) models:

   • NISSAN JUKE F16 2019-2023

   • NISSAN QASHQAI J12

   • NISSAN ROGUE T33 2020-2023

   • NISSAN X-TRAIL 2020-2023

2. Optimized software.

CG100X Programmer released new software V2.0.8.0 on April 29th, 2026.

CG100X 2.0.8.0

The following models are added for dashboard read-write.

China LEC4AF SPC563M64(read write)

China LEC4AP SPC563M64(read write)

HONGQI 3607115-HF31 R7F701010(read write)

As titiled, here comes a real user review on Meredes Benz W204 ESL emulator programming.

“CGDI MB for the Win.
Today I successfully programmed an ESL Emulator for a Mercedes Benz W204.
These modules are common for Failing disabling the vehicle from Starting. A popular solution to this problem is to Programme and install an ELV emulator.
By using the Data from the Ignition switch module (EIS) we can use that data to write the ELV.
Specialist equipment is required for this process and I’m just learning the (Ins and Outs) of the process and the tools. I’ve done one before using the OTOFIX IM1 with the G-Box.
I have to admit it’s really enjoyable learning things like this. From seeing the Red light go to Green and hearing that fake noise from the emulator of the steering lock operating and then for the car to start!”

How to read Toyota/Lexus smart key information and generate EoneBoss ET key using EoneBoss TLK3 key tool?

Run EoneBoss App.

Where to download EoneBoss App?

Scan the QR code here to download EoneBoss App.

Download from Google Play, Apple Store, or directly download APK to your desktop.

Press the blue button on TLK3 unit and see the indicator turns Bluetooth.

In App, select TLK3/Key Assistant.

Hit Connect and pair TLK3 with App via Bluetooth.

Select Auto Identify & Remote function.
Put the original key on the TLK3 sensing area.


Press the lock button continuously.

EoneBoss App will automatically detect the key information, including key ID, key position, key chip type (P4) and frequency.


Then we take out EoneBoss ET key. MUST generate EoneBoss’s Toyota/Lexus wireless ET smart remote !!!
Hit Generate ET Key.

Read the instructions and press the buttons on the EoneBoss key, then confirm.


Press Connect to pair ET key with TLK3.

Generate Eoneboss ET key.

Configure key buttons.

Generate ET key completed.

Then, put the ET key on the start button to sync key.

Mercedes Siemens SIM266: Live via 100% OBD (Virtual Read)! 
Mercedes-Benz compacts are taking the spotlight on your AutoTuner Tool! Easily tune petrol A-Class and B-Class models.

Coverage: 
Mercedes A-Class (150 to 200 TURBO) 
Mercedes B-Class (150 to 200 TURBO)

Method: 100% OBD (Virtual Read). No need to read the ECU: our server provides the original file instantly! Plug in and get to work. 
Perfect for your daily tuning jobs and E85 conversions!

Key Features:
Type: Engine Control Unit (ECU)
Mode: OBD VR
Readout: Calibration
MCU: MPC561
Write time: 1min 30sec
Checksums correction

Compatibility List*:
Mercedes Models: A (1997 - 2004) / B (2005 - 2011)
Mercedes Engines: 150 / 160 / 170 / 180 / 200 / 200 TURBO
*The list may evolve over time.

If you work with two-wheelers, you know that losing all keys for a modern Honda Activa BS6 equipped with a smart key system can be a major headache. Previously, you needed a dedicated, expensive tool just to read the password from the ECU. Now, thanks to a new update for the CGDI K2 key tool, you can do it all with one device.

In this guide, we’ll walk you through how to read the password from the Activa’s ECM and prepare to learn a new smart key—even when all original keys are lost.

What You’ll Need

• CGDI K2 key tool 

• Honda Activa BS6 (latest model with smart key system)

• CG-branded smart key (generated/programmed blank)

• renew cable for K2

Step 1: Connect the CGDI K2 to the Activa’s ECM

Before starting, ensure the CGDI K2 is powered on and properly connected to the Honda Activa’s ECM (Engine Control Module) using the correct cable harness. This allows the device to communicate directly with the immobilizer system and read the necessary security data.

Step 2: Navigate to the Honda Activa Motorcycle Password Calculation

Once the CGDI K2 is connected and powered:

• Go to “More Functions” on the main menu.

• Select “Honda Activa Motorcycle Password Calculation” – this option appears thanks to the latest update specifically for the Activa smart key system.

• Check wiring diagram
• Connect the renew cable to the ECM module according to the diagram.

Step 3: Read and Save the Data

With the connection verified:

• Click on “Read Data.”

• The CGDI K2 will begin reading the vehicle’s ECU data.

• Once the reading is complete, the full data set will appear on the screen.

Important: Save this data immediately by clicking “Save” and then “Continue.” The device will confirm that the data has been saved successfully.

Step 4: Retrieve the Password

After saving the data:

• Go to the “History” section on the CGDI K2.

• The calculated password will be displayed.

This password is critical. It allows you to perform key learning (programming) on the vehicle, even if all original keys are lost.

Step 5: Prepare for Key Learning

Now that you have the password:

• Use the CGDI K2 to generate a smart key (if you haven’t already). The transcript notes that the CG-branded smart key was generated entirely using the CGDI K2.

• Take the device and the generated key to the vehicle.

• With the password and proper connections, you can now perform direct key learning on the Activa.

Why This Update Matters

Previously, working with Honda Activa BS6 smart key systems—especially in all keys lost situations—required a separate, specialized tool just to read the ECU password. That meant extra cost and more equipment to carry around.

With the CGDI K2 update, you can now:

• Read the password directly

• Generate a new smart key

• Learn the key to the vehicle

…all using a single device.

Conclusion

The new Honda Activa BS6 smart key functionality on the CGDI K2 is a game-changer for automotive locksmiths and scooter repair shops. Whether you need to add an extra key or recover from an all keys lost scenario, the CGDI K2 now provides a complete, affordable, and efficient solution.

What’s the difference between new Keydiy DZ ZB15-3/ZB15-4 and the ZB15-3 smart remote that is available now?

1. They have different key shell types. The regular ZB15-3 comes with a key shell in default. The DZ ZB15 does not come with a key shell.

2. The DZ ZB15-4 also has a panic button.

3. ZB15-3 is non-OEM solution key. DZ ZB15-3/4 is OEM solution smart remote.

4. The new DZ-ZB15 series features an upgraded hardware architecture. Compared to the previous version, it offers enhanced signal stability and is specifically optimized for Volkswagen 5C and MQB48 protocols to ensure a more seamless matching process.

User feedback:
Successfully added a spare key on a 2022 Ford F-150 using OBDSTAR X300 Classic G3.

G3 gives you outcode. Need to send outcode to 3rd party to get incode.

Then add key via OBD.

Keep Ford IMMO software up-to-date.

Delphi DCM3.7AP (GM / Opel): Live via 100% OBD! 
Flash GM group vehicles directly through the diagnostic port with your AutoTuner Tool!

Coverage: 

• Chevrolet Captiva, Cruze, Malibu, Orlando (VCDI) 
• Opel Antara (2.2 CDTI) 
• GWM Hover 5 (2.0 VGT)

Method: 100% OBD (Normal Read). Plug in, read, write. The perfect and fast solution to tune these daily drivers! 

Key Features: 
Type: Engine Control Unit (ECU)
Mode: OBD NR
Readout: Calibration
MCU: SH72513
Read time: 7min
Write time: 1min30s
Checksums correction

Compatibility List*: 
Chevrolet Models: Captiva (2006) / Cruze (2009) / Malibu (2013) / Orlando (2011) 
Chevrolet Engines: 2.0 VCDI / 2.2 VCDI 
GWM Model: Hover 5 (2013) 
GWM Engine: 2.0 VGT 
Opel Model: Antara (2006) 
Opel Engine: 2.2 CDTI

User feedback:

Adding key to Toyota Supra is now an easy job.

Supra now it’s not a Toyota, it’s BMW with a Toyota label. Supra is BDC3 system.

Copied key with Keydiy KD-X4.
Only spare is easy. All keys lost is still a few months wait for dealer key.