How to Copy 2021 Havel H6 ID47 Smart Key with Keydiy KD-X4?

Keydiy KD-X4 has recently updated the NXP NCF29Ax smart key copying function. Here, we will demonstrate how to copy a 2021 Haval H6 smart key using KD-X4.

 

Chip type: ID47

Original key type: NXP29A1

Tools used:

Keydiy KD-X4 key programmer

Keydiy NCF29xx adapter (#13 adapter)

Keydiy KD C29A71 smart key

Original smart key

A hot gun

Anti-static tweezer

 

Advantages of this method:

• The key copied KD smart key features smart functions.
• If the original vehicle has door handle sensor (keyless entry), the key will still detect and unlock via proximity.
• For some vehicles that require a security code for pairing, this method is cost-effective.

Disadvantages:

• The C29 key has no remote control buttons.

 

Procedure:

Disassemble the original smart key shell and take out the circuit board.

Locate NXP29xx processor chip. Here it is NXP29A1 chip.

Desolder the NXP29A1 chip.

Solder the NXP chip onto the Keydiy NCF29xx adapter with a hot gun.

Connect the NCF29XX adapter with KD-X4 main unit.

In KD app, go to Remote Function-Smart Key Clone- Universal smart key synchronization.

Check the wiring diagram, here we use KD NCF29xx adapter without soldering wires.

Select Read Chip data.

Read original key chip data.

Enter vehicle model, year and FCCID to save key chip data.

Write smart and proximity sensor to the new KD key.

Connect the KD C29A71 key circuit board with KD-X4 using the 6 pin programming cable.

Generate proximity key successfully.

Then install the KD circuit board with key shell.

Reinstall the key chip back onto the original key circuit board. Install the original key shell.

Don’t need to program key in car afterwards.

Test both keys.

The new key is ready to use.

Done.

EoneBoss TLK3 Generate Toyota All Keys Lost Remote Guide

 

EoneBoss TLK3 Toyota smart key unlock & generation device released a major update in May 2026- All keys lost smart key generation.

 

Supports Toyota and Lexus smart key models.
Without the original car key. It can identify car key, type, frequency and frequency sequence of the smart key used in the car based on the signal from the ignition switch inside the car. It can directly generate an ET sub-unit based on the identified content or serve as a reference when using other devices.

Suppor type:

4D (94, D4, 98, 9F, 78, F1)
8A (39, 8, A9, A8, AA, B8,BA, F3, F4)
It will make a 4A chip type in the feature.
Here we will show how to perform all keys lost smart key generation using TLK3.

Model example: 2025 Lexus ES200
Chip type: 8A B8

Charge the TLK3 device for 1 hour.
Download or update EoneBoss App to the latest version.
Run EoneBoss App.
Choose TLK3 device.

Start scanning the TLK device.
Press the blue round button on the TLK3 unit for 3 seconds to connect the TLK3 via Bluetooth.

Choose All Keys Lost Generation function.

TLK3 will collect the data from the vehicle from the ignition switch.
You need to press the Start-Stop button when you collect the data.
Once you get the key information, you can generate Eoneboss ET smart key or generae other brand keys.
No daily use limitation for EonBoss ET smart key.
Do not have any smart of other cars inside the car and support types.

Click Confirm.

Put your TLK3 near the start button.
Press the start nutton every 5 seconds until the information is obtained.

Select Toyota or Lexus brand.

This time you need to place the TLK3 near the gear lever and pres the start button every 5 seconds unilt the message is obtained.
The PKE antenna location may be different on different models. Change the TLK3 at differnce place.
You need to put the TLK near the PKE antenna.

It will show chip type, frequency and the correct frequency sequence.
Once you get the key information, you can generate ET smart key or you can generate other brand key.

NOTE: Program smart key with other OBD programers in car after generating smart key.

Autel vs Xhorse vs OBDSTAR vs Xtool

In this guide, we compare OBDStar, Xhorse, Xtool, and Autel (including Otofix) immobilizer key programming tools based on:

• Annual fees and licenses

• Required accessories

• Performance across brands (BMW, Mercedes, VW/MQB, commercial brands)

• Best tools for beginners

1. OBDStar

Pricing & Fees

• Initial cost: ~$3,199 for the X300 Classic G3 (full license version)

• Annual fee: ~$250/year for updates

• Licenses: Also requires separate licenses for advanced functions (MQB48 NEC35XX)

How It Works

OBDStar uses both annual subscriptions and per-function licenses. Even after buying the tool, you must keep paying yearly just to maintain functionality.

Performance

•  Excellent on BMW and Mercedes

•  Good on most commercial brands

•  Not the best for VW MQB systems

Verdict for Beginners

Least recommended for starting out. High upfront cost plus recurring fees make it hard to recover investment when you have few customers.

If money is not an issue, the G3 is powerful. 

 

 

2. Xhorse – No Annual Fees, Lots of Accessories

Pricing & Fees

• Initial cost: ~$2,079 for VVDI Key Tool Plus

• Annual fee: None

• Licenses: Some functions require licenses (e.g., MQB, BMW ISN), but many are free when using Xhorse keys (tokens earned via purchases)

How It Works

Xhorse does not charge annual fees. Instead, they sell required accessories for specific jobs. Examples:

Accessory	Price	Purpose
Ford AKL cable	~$6	All keys lost on Ford 2016+ with active alarm
BCM2 adapter	~$104	Encrypted BCM on Audi A4/A6/Q3/Q5
Toyota 8A adapter	~$129	Smart key all keys lost Toyota 2017–2022
Toyota Blade adapter	~$77	Blade key all keys lost Toyota

Performance

•  Excellent on BMW, Mercedes, VW (including MQB)

•  Sometimes problematic on commercial brands: Renault, Chevrolet, Honda

Verdict for Beginners

Highly recommended as a first tool. No annual pressure allows you to grow at your own pace. Buy accessories only when needed.

Best starter: Key Tool Max Pro (~$391) + add cables per job.

 

 

3. Xtool – No License Fees, Optional Updates

Pricing & Fees

• Initial cost: ~$$–$1,500 for X100 Max (full)

• Annual fee: None required, but updates cost after 1–2 years

• Important: If you don’t pay, you keep all existing functions. Nothing is lost.

How It Works

Xtool gives you a fully working tool with 1–2 years of free updates. After that, you can choose to pay for new features, but the tool remains 100% usable.

Accessories Needed

• CAS 501 adapter (for BMW)

• M822 / M821 (for Mercedes)

• Key emulator (for Toyota all keys lost)

Full kit with all accessories: ~$2,243

Performance

•  Excellent on commercial brands (Chevrolet, Honda, Nissan, etc.)

•  Not 100% on BMW (some CAS systems fail)

•  Not 100% on Mercedes (some module adaptations fail)

•  Not 100% on MQB (only two dashboards supported so far)

Verdict for Beginners

Recommended, especially if you focus on commercial Asian/American brands. Not ideal for high-end European cars.

 

4. Autel (Including Otofix) – Best Overall Performance, But Has Annual Fees

Pricing & Fees

• Annual fee: Yes (varies by model)

  • IM508: ~$244/year

  • Otofix IM1: ~$175/year (cheaper)

• Licenses: None

• Accessories required:

  • XP400 Pro (for transponder programming)

  • GBOX (for immobilizer work)

  • APB112 (for key learning)

Full kit (IM508 + accessories): ~1,663, Fullkit(OtofixIM1+accessories): 1,349 – saves ~$300 vs IM508

How It Works

Autel tools require an annual subscription to receive updates. Without it, they still work but won’t support new vehicles. They do not charge per-license fees.

Performance – The Best Overall

•  Excellent on commercial brands (Chevrolet, Toyota, Honda, etc.)

•  Excellent on BMW

•  Excellent on Mercedes

•  Excellent on VW MQB

Autel consistently outperforms Xhorse and Xtool across all major brands.

Verdict for Beginners

Best single tool if you can afford the annual fee. The Otofix IM1 is the smartest buy because:

• Same software as IM508

• $300 cheaper upfront

• $70 cheaper yearly updates

Ideal second tool after starting with Xhorse or KM100.

 

Best Starter Tools (No Annual Fees)

If you have a limited budget and want to begin without recurring costs, these two are your best options:

Tool	Price	Notes
Autel KM100	~$348	No annual fee. Good for OBD programming, not great for cloning. Includes Brazil/India licenses (Maruti, Suzuki, Mahindra, Opel, Fiat).
Xhorse Key Tool Max Pro	~$391	No annual fee. Excellent cloning, good for Ford (with cable), BMW, Mercedes, VW. Some commercial brands may struggle.

Both can handle Toyota (outside USA legal issues), Ford, basic European, and many Asian vehicles.

 

Recommended Upgrade Path

Step	Tool	Why
1	Xhorse Key Tool Max Pro or Autel KM100	Low entry cost, no annual fees, learn basics
2	Otofix IM1 (full kit)	Best performance for price, annual fee is affordable
3	OBDStar X300 G3 or Xtool X100 Max	Only if you need specific advanced features

Final Comparison Table

Feature	OBDStar	Xhorse	Xtool	Autel/Otofix
Annual fee	Yes (~$250)	No	Optional	Yes ($175–$250)
Per-function licenses	Yes	Rare	No	No
Accessories needed	Some	Many	Some	Some (XP400, GBOX, APB112)
BMW / Mercedes	Excellent	Excellent	Partial	Excellent
VW MQB	Not best	Good	Weak	Excellent
Commercial brands	Good	Sometimes weak	Excellent	Excellent
Best for beginners		Yes	Yes (commercial focus)	Yes (best overall)

 

Final Advice

• If you have very little money → Buy a KM100 or Key Tool Max Pro. No annual fees. Start working.

• If you can invest a bit more → Buy Otofix IM1 full kit. Best performance for the price.

• Avoid OBDStar as your first tool – the fees will eat your profit.

• Avoid Xtool if you plan to work on BMW, Mercedes, or MQB – it’s not ready.