How to erase tpx4 data on cn900?

When you program car key with cn900, you may probably use tpx4 (tpx4 inside the case below) to read/get information from the ignition. Therefore, when you want to do for another car model, data in the tpx4 should be erased. How?

First step: put the tpx4 in the testing hole 

Second step: four selections in the main menu, press SPECIAL please

Third step: three selections in the SPECIAL menu, select GENERATE CODE this time.

Fourth step: choose transponder type menu and select Blank 7936, and then press GENERATE button

Fifth step: press GEN after pressing GENERATE button

Final step: after waiting for few seconds, you will get SUCCESS message which means tpx4 data is erased. And you could have it prepared already for your next usage with cn900 key programmer. 

Do you get the solution for clearing tpx4 data with cn900? Hope this post is useful for you.