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Lonsdor LT20-04 Smart Key Board – 8A + 4D Chip | Adjustable Frequency | For Toyota & Lexus 2006–2023
The Lonsdor LT20-04 smart key PCB board is a dual-chip (8A + 4D) solution designed for a wide range of Toyota and Lexus vehicles. This board supports adjustable frequency and allows conversion between chip types, making it ideal for automotive professionals building or refurbishing smart keys.
Compatible with K518 Pro, KH100+, and KW100S, this board fits into OEM-style shells with FCC ID: HYQ14FBA / HYQ14FBB.
Chip & Board Details:
- Chip Type: 8A + 4D (switchable)
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Board Numbers:
- 8A: 0020, 0101, 2110, 3330, 0010, 3950, 0410, 0120, 0440
- 4D: 0410, 0780, 5380, 3370, 433, 5290, 7930, 5961
- FCC Shell Compatibility: HYQ14FBA, HYQ14FBB
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Frequency Support:
- 314.35 / 312.09
- 312.50 / 314.00
- 433.58 / 434.42
- 314.35 / 315.10
- 433.92 MHz (and more)
- Battery: CR2032 (not included)
Vehicle Compatibility:
8A Chip Vehicles (2014–2023):
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- Toyota Camry (2015–2021)
- Toyota Corolla (2015–2019)
- Toyota C-HR (2019)
- Toyota RAV4 (2015–2021)
- Toyota Land Cruiser (2016–2021)
- Toyota Highlander (2015–2021, PIN required for 2021)
- Lexus NX, ES, GS, RX, LS, UX (2014–2021)
- Alphard / Vellfire (Japan Market)
4D Chip Vehicles (2006–2018):
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- Toyota Crown (2009–2017)
- Toyota Prado (2008–2017)
- Toyota Land Cruiser (2007–2016)
- Toyota Camry (2006–2018)
- Toyota Prius (2010–2017)
- Toyota Highlander (2006–2017)
- Toyota Alphard (2006–2016)
- Lexus CT (2011–2017)
- Lexus GS, ES, LS, IS (2006–2017)
Supported Devices:
- Lonsdor K518 Pro
- Lonsdor KH100+
- Lonsdor KW100S
Use Smart Key Menu → LT Smart Key → Select LT20-04
Key Functions Supported:
- Get key version info
- Read and convert button functions
- Switch between 8A ↔ 4D chip types
- Modify smart key frequency
- Unlock or upgrade key
- Emergency key generation (K518 Pro only)
- Smart key count value modification
- 8A smart key cloning (KH100+ only)
What’s Included:
- 1x Lonsdor LT20-04 Smart Key PCB Board (4-Button)
- Packaged in anti-static bag
- Instructions via Lonsdor software
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Shell and battery not included. Requires compatible case (HYQ14FBA or HYQ14FBB style).
