Possible to copy Toyota Supra smart key using Keydiy KD-X4? Yes, it is BDC3 key. We have seen them in Hungary keys. There are two types of BDC3 Hungary keys. Hungary keys can be encrypted as well. Supra key is… Continue Reading
Problem: It is a 2021 VW Jetta Mexico all keys lost. Tried to use Keydiy KD-X4 and Yanhua ACDP2 to do AKL for this MQB 49 5C car by using dealer key to collect data then learn to car. Ordered key from dealer precoded.… Continue Reading
One of the biggest challenges when working with VAG MQB49 vehicles is identifying the exact remote type—whether it’s a flip key, a smart key, an older model, or a newer generation. Getting it wrong can waste time and create unnecessary… Continue Reading
Recently, some customers reported the Xhorse VVDI Key Tool Plus , Keydiy or KYDZ devices can read the original key data from the latest MQB49 5D system on the 2016 Audi A6 or Q5, they are unable to learn key… Continue Reading
Keydiy KD-X4 key programmer will release new Ford Immobilizer software soon- supports 2021+ Ford key programming by reading BCM module data. Keep an eye on the software upgrades. Here is an example of adding a spare key on a… Continue Reading
Keydiy’s VW01 cable is designed for reading IMMO data on VAG 4th-gen NEC+24C64/24C32 CAN clusters. The Godiag GT110 IMMO4 test platform can serve as a direct replacement if the VW01 cable is not available. With GT110 you can see the… Continue Reading
Keydiy KD-X4 and KD-MAX update NCF29xx smart key synchronization function (read original key data to copy/add smart key) on April 17th, 2026. Keydiy will read original key data for the following smart key chip types: NCF29A1 NCF29A4 NCF29A2 NCF2953 NCF29A3… Continue Reading
Good news — the Keydiy KD-X4 key programmer can now modify the ID of original factory VAG MQB49 5C and 5D keys. In previous versions, the KD-X4 could only change the ID of KD’s own 5C/5D keys (check this guide).… Continue Reading
Problem: After reading a Skoda MQB49 5C key with keydiy kd-x4, the chip no longer recognised. Anyone had similar issue? The coil copper wire affects the chip recognition? Solution: This is common on VAG MQB49 5c keys. The coil is… Continue Reading
Problem: Tried to clone the data from the knife shape key to the LCD key using Keydiy KD-X4, but unfortunately, I failed. After I read the data from customer Key (knife Shape) and saved it to my history records & then… Continue Reading
More and more devices can now add keys for VAG Porsche 5C and 5D systems. Among the more popular ones are XHORSE, KEDYI (KeyDIY), Yanhua ACDP, and AUTEL. Which device performs better for 5C/5D keys? Below are the respective features… Continue Reading
Keydiy KD-X4 key programmer released new software upgrade on March 24th, 2026. Supports unlocking VW Audi Sear Porsche SFD1 security gateway within the device automatically. The device can now directly obtain the SFD unlock token, eliminating the need to contact… Continue Reading
Problem: Added keyless entry to an 2023 Audi A3 8Y MQB49 5D system using Keydiy KD-X4 and now the keyless entry no longer works (locking and starting work). When I pull the handle, the LED on the key flashes, but… Continue Reading
Part I: How to tell VW Golf 8 style MQB49 5D key type from key boards? MQB49 5C vs 5D smart key The 5D key PCB has a different chip and also includes an additional acceleration sensor (keyless entry sensor). 5D key is not… Continue Reading
How change VAG MQB49 5C 5D Key ID to match original system in Keydiy KD-X4? This is a frequently asked questions of Keydiy MQB49 function. Here is the clue. First of all, need to disassemble and read original key data,… Continue Reading
