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🔑 KEYDIY Universal Smart Key – Toyota / Lexus Style – 4 Buttons – 8A Transponder – TB01-4 (Aftermarket) Professional universal smart key designed for automotive locksmith use. The KEYDIY TB01-4 is a programmable smart key PCB used for Toyota and Lexus 8A smart key systems, supporting key generation and cloning with compatible locksmith tools. ✅ Key Features Brand: KEYDIYModel: TB01-4Buttons: 4 Buttons (Lock / Unlock / Trunk / Panic)Transponder Chip: 8A (DST AES Toyota system) Platform: Toyota / Lexus smart key systemsFrequency: 315MHz / 433MHz (programmable depending on device) Type: Universal Smart Key PCB (Aftermarket)Smart / Proximity / Keyless Go: Yes (after programming)Programming Tools Required: KEYDIY KD-X2 / KD-MAX or compatible locksmith devices🚗 Fitment Supports multiple Toyota & Lexus vehicles using 8A smart key systems , depending on programming and shell configuration. 📦 Package Includes 1 × KEYDIY TB01-4 Smart Key PCB Battery included (varies by batch) Shell / blade not included (sold separately) ⚠️ Important Notes This is an aftermarket universal PCB , not an OEM Toyota/Lexus key Requires professional programming with locksmith tools Compatibility depends on vehicle system and programmer support No OEM part number or FCC ID applies to this product Always confirm vehicle compatibility before programming 💡 Why Choose This Key? Professional locksmith-grade solution Supports Toyota/Lexus 8A smart key systems Reprogrammable and reusable design Cost-effective universal replacement PCB