EoneBoss TLK3: Next-Gen Smart Key Solution for Toyota, Lexus & Subaru

EoneBoss has introduced the TLK3, a new smart key solution designed for Toyota, Lexus, and Subaru vehicles. Compared with previous TLK series devices, TLK3 expands support for more key chip types and introduces one-click unlocking, making the key preparation process more convenient for supported vehicles.

EoneBoss TLK3 Features

Smart Key Unlocking

The TLK3 supports unlocking for the following smart key chips:

4D

8A

4A

Auto Identification & ET Generation

TLK3 can automatically identify:

Key type

Frequency

Dual-frequency sequence

After identification, it can directly generate the corresponding ET series key.

Note: ET generation is not a direct key clone. Vehicle programming is still required after generating the key.

AKL (All Keys Lost) Generation

For all key-lost situations, TLK3 can capture the vehicle ignition signal and automatically identify the required key information for key generation.

Multi-Frequency Detection

TLK3 supports frequency detection for multiple ranges, including:

300–316 MHz

430–436 MHz

868 MHz

902 MHz

EoneBoss TLK Series Comparison

The TLK series currently includes TLK1, TLK2, and TLK3.

Note: TLK1, TLK2, and TLK3 devices are not compatible with each other.

Summary

The EoneBoss TLK3 expands the capabilities of the TLK series by supporting 4D, 8A, and 4A smart key unlocking, automatic key identification and ET generation, AKL key generation, and multi-frequency detection.

Compared with TLK1 and TLK2, TLK3 is designed for aftermarket and dealership keys, offers one-click unlocking, and supports a wider range of key chips through its app-based operation, making it a practical addition for professionals working with Toyota, Lexus, and Subaru smart keys.

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EONEBOSS TLK3: Industry-First One-Click Unlocking for 4A-AA, BA Keys

EONEBOSS TLK3 delivers industry-first one-click unlocking for 4A-AA and BA keys, redefining how aftermarket and dealership key data is processed. Designed for locksmith workflows, it replaces multi-step procedures with direct unlocking focused on speed and operational efficiency.

Designed for Faster Daily Operations

Unlike conventional unlocking processes that require multiple manual steps, the EONEBOSS TLK3 simplifies the workflow by combining rapid chip identification with one-click unlocking for supported transponders. The result is a faster path from key preparation to programming, helping workshops handle more jobs while spending less time on repetitive tasks.

Key benefits include:

One-click unlocking for supported chips

Faster key preparation before programming

Quick chip data identification

Reduced manual operations

Dedicated support for aftermarket and dealership keys

Which TLK Tool Fits Your Workflow?

The TLK series is designed to support different key programming scenarios. Rather than replacing existing models, the TLK3 expands the lineup with a dedicated solution for aftermarket and dealership key applications.

Feature	TLK1	TLK2	TLK3
Primary Application	Original Vehicle Keys	Original Vehicle Keys	Aftermarket & Dealership Keys
Key Simulation	Yes	Yes	No
One-Click Unlocking	No	No	Yes
Unlocking Workflow	3-Step Write-Back Process	3-Step Write-Back Process	Single-Step Unlocking
Supported Chip Families	8A (AA, B8, B9, BA)	4A (AA, BA)	4D (94, D4, 98, 9F, 78, F1); 8A (39, 88, A8, A9, AA, B8, B9, BA, F3, F4); 4A (AA, BA)

For technicians who primarily work with original vehicle keys, TLK1 and TLK2 remain the appropriate choice thanks to their key-simulation capabilities. 

The TLK3 is designed for workshops that frequently handle aftermarket and dealership keys and want a faster unlocking process through one-click operation. 

Each tool serves a different purpose, allowing professionals to choose the solution that best matches their workflow.

Supported Chips

The EONEBOSS TLK3 supports a wide range of aftermarket transponder chips, covering many commonly encountered applications.

4D Series

94, D4, 98, 9F, 78, F1

8A Series

39, 88, A8, A9, AA, B8, B9, BA, F3, F4

4A Series

AA, BA

Availability

The EONEBOSS TLK3 is now available for automotive locksmiths and key programming professionals looking for a dedicated solution for aftermarket and dealership key unlocking.

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How to Use EONEBOSS TLK1 Key Unlocking Device

The EONEBOSS TLK1 is a professional diagnostic tool specifically designed to reprogram and reactivate locked or accidentally deleted Toyota and Lexus keys. Using advanced technology, it enables direct matching of used keys—eliminating the need for an initial unlocking step. This streamlines key recycling, improves workflow efficiency, and lowers operating costs.

Step 1. Simulate Key Generation

Place the locked or deleted key into the TLK1 sensing area.

Press the device button to begin reading.

The TLK1 reads the key’s secure identifier (e.g., Key ID) and uses internal data to simulate a compatible key profile.

What happens: The device captures the key’s secure identifier and generates a virtual key that can be recognized by the vehicle during programming.

Step 2. Match to Vehicle

Use the TLK1 as a temporary replacement key during the vehicle’s standard key programming procedure.

Follow the specific key matching steps required by your Toyota/Lexus model.

The TLK1 transmits the key ID and necessary credentials to the vehicle, while storing related data (such as passwords and system flags) internally.

What happens: The vehicle recognizes the simulated key and registers the key ID into its immobilizer system as a new, valid key.

Step 3. Write-Back Operation

After the vehicle has accepted the simulated key and the TLK1 has retrieved all necessary data, place the original locked key back into the sensing area.

Activate the write-back function on the TLK1.

The device will write the completely restored key information to the original key.

Wait for a visual or audible confirmation (e.g., LED indicator or prompt) that the process is complete.

What happens: The original key receives the restored access credentials and is fully reactivated for normal use.

Final Confirmation – Test Key Functions

Once the write-back process is finished, remove the key from the TLK1 and test all remote and ignition functions—such as locking, unlocking, and starting the vehicle—to ensure everything operates correctly. The key programming is now complete.

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