Lonsdor K518 Update Toyota Yaris 2021- 4A Blade All Keys Lost via OBD

 Lonsdor K518 series released a super update on Jan. 9th, 2026.

Update

Toyota Yaris (2021-) 4A Mechanical Key
Support All keys lost by OBD.
Menu path:Toyota\Select from vehicle\Asia\Yaris\2021-\Mechanical key(4A)

Regular key type. 

Chip type is 128-bit id4A

Toy43 blade

No need to change fuse box.

Note: Please pay to query rolling code from local distributor！

This function requires Yaris 4A software license activation.

Confirm if you are doing all keys lost procedure, and note the following:

Check the dashboard (the dashboard lights must be off).

Check the center console (the display should show no signs of operation) – this indicates all keys have lost.

Ensure only our device is connected to the OBD port, with no additional data collection tools attached.

Lonsdor K518 Pro Program 2021 Ford Transit All Keys Lost

 It’s a 2021 Ford Transit with all keys lost.

Decode the door lock using Lishi auto pick.

First tried Autel IM508, but it says the function is not supported. Then pull out Lonsdor K518 Pro.

Select IMMO & Remote- Ford- USA- Transit- 2020 to 2021- Add Key

Turn the ignition on and turn it off
Configuring system and read data. It takes about 10 minutes.

Read key data successfully.

Insert the new key to be programmed and switch ignition on.

Program new key successfully.