How to solve PSA IMMO Tool Locked10 Error ?

One of my Portuguese customer who bought a PSA IMMO tool

WHen he use it, the device ask for password.

He tried many passwords and then lead the device locked.

Here is the image of the error message.

2

But how can we solve it ? Here is the steps

1. power the unit – wait until the LOCKED10 displayed !!!

2. press and hold the ESC button for 1minutes ( do not release ) – wait until the put code displayed !!!!

3. Put your unlock code: TEK1 (ArrowUp,ArrowDown – Enter )

http://www.eobdii.fr/psa-immo-tool-pour-peugeot-et-citroen-pin-code-reader.html