Lonsdor K518 Pro with LSD-BDC2 Adapter Add 2019 BMW Smart Key

 This guide will show you how to program a smart key for a 2019 BMW 5 Series using Lonsdor K518 Pro.

Preparation:

• K518 Pro key programmer
• OBD communication cable
• Lonsdor LSD-BDC2 (G) Adapter
• Lonsdor BDC2 adapter cable
• 12V power cord
• Original vehicle key
• New BMW smart key (by Lonsdor)

Select "Read key data"

Check the current key state

Confirm VIN recognition.

Step 2: Backup & Restore Code

Select Backup & Restore Code→ Backup code

Back up coding data successfully.

Step 3: Generate Smart key

Connecting the Adapter:

Disconnect the OBD box and connect the Lonsdor BDC2 adapter to the BDC2 module.

Attach the adapter cable and 12V power cord to the BDC2 Adapter.

Back to the main menu of K518 PRO key programmer

Select Generate Smart Key → BMW → G Chassis (first menu).

Insert the new BMW smart key into the card slot and start the generation process.

Key generated successfully.

Step 4: Preprocessing

Return to main menu:

Immo & Remote → BMW → BDC2 → Program Smart Key → Preprocess.

Note: WIFI connection required for preprocessing.

Wait the preprocessing procedure is completed

Step 5: Generate Working Key

After preprocessing, select "Generate Working Key"

Select one blank key position (e.g. key position 14)

Insert the original key into the slot, then remove it.

Insert the new key into the slot.

New key generated and locked successfully.

Final Step: Test Key Function

1.Reinstallation & Testing:

Reinstall the BDC2 module into the vehicle.

2.Test the original key: Start the vehicle → Confirm normal operation → Turn off the engine.

3.Test the new key: Place it in the key recognition area, hold the start button to complete programming.

Functional Verification:

New key: Start the vehicle, test remote lock/unlock.

Original key: Start the vehicle, verify remote functions.

Smart key programming for the 2019 BMW 5 Series is now complete by Lonsdor K518 Pro key programmer.

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Lonsdor K518 PRO Program 2024 BYD Destroyer 05 Key

 Lonsdor K518 PRO/K518 series key programmer supports BYD 2025- Models — Free PIN Auto-Identification for Key Programming now. Check the detailed upgrade below and check how to program a smart key on a 2024 BYD Destroyer 05 via OBD.

Lonsdor K518 Update Info:

Update time: Dec.5, 2025

Supported BYD Models (2025):

• Tang
• Song
• Han
• Yuan / ATTO
• Qin
• Seal
• Sealion
• Dolphin
• Leopard 5
• Leopard 8
• Titan 7

Demonstration: Programming a Smart Key for a 2024 BYD Destroyer 05

Required Equipment:

• Lonsdor K518 Pro key programmer
• OBD communication cable
• Original vehicle key
• A new Lonsdor smart key

Step-by-Step Procedure:

Step 1: Generate Smart Key

Connect the OBD communication cable.

Navigate to "Generate Smart Key" → BYD → Destroyer and select the first menu option.

Insert the new Lonsdor smart key into the card slot.

Click "Generate" — the process completes successfully.

Return to the main menu.

Step 2: Program Key & Remote

Select "Immobilizer & Remote" → BYD Smart Key → Destroyer 05.

Choose "Read Key Data" and follow the on-screen instructions.

Place the original car key in the indicated sensing area and click OK.

Select "Program Smart Key".

(Current key count displayed: 2)

Place the first key to be programmed into the sensing area → click OK → programming successful.

When prompted to program the next key, select OK.

Place the second smart key into the sensing area → click OK → programming successful.

Select "Cancel" when asked about programming additional keys.

Completion Confirmation:

- Programming complete — 2 keys programmed.

- Key programming successful.

Functional Verification:

Original key: Press brake + start button → vehicle starts successfully.

New key: Press brake + start button → vehicle starts successfully.

Remote test: Both keys lock and unlock the vehicle normally.

Conclusion

Using Lonsdor K518 PRO key programmer, we have successfully added a smart key for the 2024 BYD Destroyer 05. This process demonstrates the efficiency and user-friendly operation supported by the latest firmware update.

How to Clone BMW BDC3 Key with Xhorse VVDI Key Tool Plus?

 Learn how to clone BMW G/U Chassis BDC3 keys using Xhorse VVDI Key Tool Plus. This feature supports both original key generation and VVDI dedicated key generation. Follow these simple steps to get started.

What You’ll Need

Key Tool Plus

MCU Cable & DB15 Cable

Xhorse BMW-G License Activation

Original Key or VVDI BMW Key

Step 1: Read Vehicle Information

Immo programming >> BMW >> Select from system >> G/U Chassis BDC03/BDC IMMO System >> Read vehicle information >> OBD reads vehicle information/Manually enter the vehicle identification

Save the vehicle data once successfully read.

Step 2: Read the Original Key

Read original car key information >> OK >> Read

Carefully solder the MCU cable to the original key, matching wire colors correctly — especially MSDA and MSCL. Connect the cable to Key Tool Plus.

Save the original key data file.

Step 3: Generate a Dealer Key

• Option A — Using an Original Factory Key

1. Remove the MCU cable from the original key (use a soldering iron, do not pull).
2. Solder the cable to a new original factory key.
3. In Key Tool Plus, select Generate using original factory key and load the saved service file.
4. Click Write to complete key generation.

• Option B — Using a VVDI BMW Key

1. Generate the key remotely via the tool’s BMW remote programming menu.
2. Return to the dealer key menu and select Generate using VVDI key.
3. Load your saved service file and place the new key on the device coil.
4. Follow prompts until key generation is complete.

Final Tip

After generating the key, disconnect and reconnect the car battery before testing the key’s functionality.

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Guide to Exporting Yanhua ACDP Folders via Android/ IOS

 This article walks you through the process of compressing and sharing your Yanhua ACDP/ACDP2 project folders from both Android and iOS smartphones.

Prerequisite: Verify Your App Version

The process is nearly identical on both platforms, but you must have the correct Mini ACDP app version installed.

Android (V3.0.142 or above), iOS (V3.6.5 or above):
Open App -> [Me] -> [About]

The General Export Process

The core workflow involves three actions in the "My Files" section: Locate > Compress > Share.

Platform-Specific Instructions

On Android:

Locate your folder (e.g., BDC2_ICP_OBD_IMMO_LOST).

Use the three points next to it to select "Zip".

Use the three points on the created .zip file to select "Share".

Choose your preferred sharing method (e.g., WeChat > File Transfer) to export the file off the device.

On iOS:

Locate your folder (e.g., bmw).

Long-press it and select "Zip" from the context menu.

Long-press the resulting .zip file and select "Share".

Choose your preferred sharing method (e.g., WeChat > File Transfer) to export the file off the device.

That’s the whole process to export Yanhua Mini ACDP2 folder on Android and IOS devices.

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