Fixed: LAUNCH CRP909/ CRP919 V12.12 Firmware Update Failed Code: 1

 If your LAUNCH X431 CRP909 or CRP919/CRP919E BT tablet displays the error "Firmware update failed! (Code:1) to V12.12," follow this step-by-step troubleshooting procedure to resolve the issue efficiently.

Solution

Re-download the firmware and perform a firmware repair to correct the installation failure.

Step-by-Step Instructions

1. Reconnect and Re-download Firmware

• Ensure the tablet is connected to a stable internet network.
• Navigate to Update in the system menu, select the V12.12 firmware package for re-download.

Recommended files include:
DOWNLOADBIN_CRP_12XIV2_V2 (V12.12)
DOWNLOADBIN_CRE_X_V2 (V12.12)
Firmware upgrade (V12.12)
Firmware upgrade Program (V12.12)

1. Perform Firmware Repair

• Return to the main interface and select DATA.
• Choose Firmware Fix from the options, and run the Firmware Fix.

Refer to the included interface images for visual guidance throughout the process.

Key Notes

• Use a reliable Internet connection to avoid download interruptions.
• Ensure the battery is sufficiently charged or the device is plugged in during the update.
• If the issue persists, verify network stability and attempt the download again.

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How to Check Lonsdor K518 Pro Paid Functions and Subscription Period?

 Question: How can I check the paid functions for my Lonsdor K518 Pro? Need serial number?

OBDExpress.co.uk engineer replied:

You can directly check the paid licenses on K518 PRO full version or FCV version.

No need to offer device SN to us for check.

Path:

Settings-> Device Info-> Paid function

In addition, you also can check the software subscription period for full version (e.g. 2 years free update).

If the subscription period expires, you can use the basic functions, but the following functions are not supported:

• Free Toyota AKL Activation / JLR License / Nissan License / Volvo License
• Newly upgrade features
• The function has been marked on the menu of K518 PRO key programmer:

Such as OBD hardware self-check 2 and OBDII upgrade

Check more functions supported by this link [https://center.lonsdor.com/product.html#/product/200/2]

Tech support:

Email: sales@OBDexpress.co.uk

WhatsApp: +86 18750906257

Working Time: 9:00am — 18:00 pm (UTC+08:00), Monday to Friday.

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Lonsdor BMW BDC License: Program Keys for Just $30 Lifetime

 Are you looking for a reliable and affordable way to program BMW keys? Look no further! Lonsdor now offers its powerful BMW BDC2/ BDC3/ BCP License with a one-time activation fee of just $30 — and you get lifetime FREE access!

What Does It Support?

1. BDC2, BDC3, and U-Chassis BMW models
2. Compatible with K518 PRO/K518 Series programmers
3. Works with both original keys and Lonsdor BM3S smart keys

What You’ll Need:

• Lonsdor BDC2 Adapter & BDC3 Solder-free Clip
• Lonsdor K518 Pro Key Programmer

Supported Models At a Glance:

How to Activate?

Simply contact your local Lonsdor distributor to subscribe and activate your license. Once activated, you’re set for life!

Important Note:

• The add-key function supports a limited range of keys.
• Even if your vehicle’s model year is listed, compatibility is not 100% guaranteed.
• Our software provides clear on-screen guidance to help you determine compatibility.

Requirements:

1. Active Lonsdor BMW BDC2/BDC3/BCP License
2. Stable internet connection

Ready to simplify your BMW key programming?
Get your license today and enjoy lifetime access to one of the most trusted tools in the automotive locksmith industry.

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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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