Description
Clone smart keys that are usually dealer-only - any NCF29xx chip, even from a broken key
The NCF29xx chip sits inside a huge range of modern vehicles. The #13 adapter reads its secure data straight off the chip and copies it onto a fresh synchronization key - no trip to the dealer, and no on-car programming after the write.
Pairs with KD-X4 over a DB25 connector. Multiple footprints on the board cover different package sizes across the NCF29xx and PCF79xx families.
Read the original, write a working key
NXP NCF29xx chips are a secure element, so they can't be copied over the air. This adapter gives you direct access to the chip's memory, so the tool reads the ID and remote data from the original key, then writes it to a dedicated KEYDIY synchronization key that behaves exactly like the original.
Keys that are usually a "dealer-only" job
Many NCF29xx-based keys normally need dealer ordering, module work, or online authorization to add. Instead, you clone an existing key and work straight from the bench - saving your customer the time, the tow, and the cost.
A dead key is still a good donor
The data lives in the chip's secure memory - not the battery, not the shell. A key that took on water, got crushed, or has a cracked board can still be your source, as long as the NCF29xx chip survived.
Clone and add a key
Read a working original, save its ID and remote data, and write it to a C29AX key. You get a second key that behaves exactly like the one you copied.
No on-car programming
After the synchronization key is written, KEYDIY states there's no need to learn it on the vehicle for most mainstream models. No OBD hookup, no passwords.
No wire jumping
The board replaces manual wiring to test points - you seat the chip on the matching footprint and you're connected. Fewer mistakes, less risk to the original board.
From original key to a working key
The flow to clone or add an NCF29xx smart key. The board saves you the wire jumping to test points - you move the chip itself onto the matching footprint and read from there.
Remove the chip
Take the original key apart and lift the NCF29xx chip off the board with hot air.
Seat it on the adapter
Solder the chip onto the matching footprint on the #13 board and connect to KD-X4.
Read the data
In the app: Remote → Smart Key Clone → Universal Smart Key Synchronization. Read and save by model, year and FCC ID.
Return the chip
Remove the adapter and solder the chip back onto the original key board - it stays usable.
Write the sync key
Connect a C29AX01 / C29AX71 over the 6-pin cable and write the saved data.
Assemble and finish
Build the new key. Per KEYDIY, no on-car programming - test that both keys work.
Where the data gets written
On KEYDIY you write the data to a dedicated C29AX synchronization key. Note: ZB71-4 is not intended for this clone.
Universal Smart Key 0B
A synchronization key covering a wide range of NXP smart platforms, for jobs that need more flexible matching.
Universal Smart Key 0B
A dedicated synchronization key (buttonless, titanium gray) matched to NCF29A1 / A2 / A3 and more. Works only through a KEYDIY device.
Technical details
Ready to do dealer-only jobs on your own bench?
The #13 adapter opens up the wide NCF29xx family - broken keys and jobs that normally only the dealer can do.
