The KEYDIY KD-X4 Key Programmer is an advanced automotive diagnostic tool designed for professional key programming, with comprehensive support for BMW BDC2 and BDC3 systems. This detailed FAQ covers authorization processes, compatibility requirements, UWB functionality, and practical usage tips for automotive technicians and locksmiths.
- Authorization & Payment
Q: Do BDC2 and BDC3 authorizations require credits or payment?
A: Yes. Both BDC2 and BDC3 authorizations are activated simultaneously. You may use K-coins if available in your account; otherwise, a payment is required to enable these features.
Q: Is there a pricing list for different key types in K-coins?
A: Absolutely. Standard key programming requires 20 K-coins, while smart key programming requires 30 K-coins.
- Regional Compatibility
Q: Is the KEYDIY KD-X4 region-locked? Can it be used in Taiwan?
A: No, the KD-X4 has no regional restrictions. It is designed for global use, including Taiwan and other international markets.
- Adapter & Device Compatibility
Q: Do I need to purchase the BMW(G)-BDC2 Adapter?
A: Yes, the BMW(G)-BDC2 Adapter is required. However, you must first complete real-name verification and activate the BMW function in your KEYDIY account.
Q: Are KEYDIY BDC2/BDC3 keys compatible with Xhorse devices?
A: No. BMW keys from KEYDIY are only compatible with KEYDIY equipment or original OEM tools-not with Xhorse devices.
- Vehicle Support
Q: Does the KD-X4 support key programming for the BMW G20 (3 Series)?
A: Yes. The KD-X4 supports the G20 model, which uses the BDC3 platform. Ensure the key is not locked. If the model does not appear in the menu, navigate using the vehicle type.
- UWB Key Programming
Q: Can the KD-X4 copy UWB-enabled BCP keys? Does it require an OEM key or KEYDIY’s FGB key?
A: Currently, only OEM UWB keys are supported. This functionality is enabled through app updates. Full overseas UWB support is scheduled to be available by October 31, 2025.
Q: How can I identify whether a BMW U-key supports UWB?
A: UWB-enabled keys are marked with the code “CA” (high-end). Non-UWB keys are labeled “CG” (low-end). For low-end keys, KEYDIY’s FGA key offers reliable programming results.
- Chip Programming
Q: Does the KD-X4 support reading and programming the KD D26 chip?
A: Yes, the KD-X4 fully supports both reading and programming the KD D26 chip.
- Device Security
Q: Can the KD-X4 be locked by serial number in cases of fraud?
A: Yes. KEYDIY reserves the right to lock a device by its serial number in clear cases of fraud-such as non-payment after product delivery.
- All-Keys-Lost Support
Q: Does the KD-X4 currently support all-keys-lost situations for BDC2?
A: Not at this time. All-keys-lost functionality for BDC2 is not yet supported.
- Account & K-coin Management
Q: What happens if a customer’s account is deleted and K-coins are lost?
A: Users must provide proof of original account ownership (e.g., via a linked Twitter account). After verification, K-coins can be merged into a new account.
Conclusion
The KEYDIY KD-X4 Key Programmer delivers professional-grade performance for modern automotive key programming, with continuous software updates expanding vehicle coverage and introducing new capabilities. Always keep your device and app updated to take full advantage of the latest features.
For detailed tutorials, product information, and customer support, visit: www.obdexpress.co.uk
