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Lonsdor LT20-10-4 Smart Key Board – 4-Button Layout | 8A-BA Chip | Adjustable Frequency | For New Toyota & Lexus (2020–2024)
The Lonsdor LT20-10-4 is a premium 4-button smart key PCB board designed for the latest generation of Toyota and Lexus smart vehicles (2020–2024). Equipped with a new-generation 8A-BA chip, it supports adjustable frequency and works with OEM-style smart key shells that use FCC ID: HYQ14FBX.
Perfect for key programmers and locksmiths using Lonsdor K518 Pro, KH100+, and KW100S, this board enables full remote key generation, unlocking, chip conversion, and emergency key functionality.
Board & Chip Specs:
- Chip Type: 8A-BA (dual protocol)
- Board Number: 3041
- Button Configuration: 4-Button (Lock, Unlock, Trunk, Panic)
-
Frequency Support: Adjustable
- 314.35 / 315.10 MHz
- 433.92 MHz
- Other region-specific bands
- Shell Compatibility: FCC ID HYQ14FBX (not included)
Vehicle Compatibility:
- 2023–2024 Lexus LX600
- 2021–2024 Toyota Tundra
- 2020–2024 Toyota Sienna
- 2020–2024 Toyota Harrier
- 2021–2024 Toyota Land Cruiser
- 2022–2024 Toyota Venza
- 2022–2024 Toyota Alphard
- 2023–2024 Toyota Sequoia
- 2023–2024 Toyota Crown
- 2022–2024 Toyota Vellfire
⚠️ Confirm shell FCC ID is HYQ14FBX for proper fitment.
Smart Key Functions (via Lonsdor):
- Unlock & upgrade key
- Modify frequency
- Read & convert button functions
- Chip conversion (8A ↔ BA)
- Emergency key generation (K518 Pro only)
- 8A chip cloning (KH100+ only)
- Remote count value adjustments
- Version reading
Programming Compatibility:
- K518 Pro
- KH100+
-
KW100S
Menu Path: - KH100+: Special functions → LT Smart Key
- K518 Pro: Special functions → Key Setting → LT Smart Key
What’s Included:
- 1x Lonsdor LT20-10-4 Smart Key PCB Board
- Packaged in anti-static bag
- Shell and battery not included
