With this function you can check if transponder can be overwritten or is permanent locked.

 

PCF7930/31 and PCF7935 - click PCF7930/31 or PCF7935

 

prog 5 prog 4

 

ID:48w/CN6 and 46w2/LKP03/KD46 - click ID48w or 46w2/LKP03/KD46

 

prog 2 prog 3