Resetting TAMPER on pin-pad VeriFone VX810:
Step 1.
Enter the system menu, password for it and then ENTER
![](https://mstcompany.net/images/blog/2015/vx810-tamper/vx810-tamper_01.jpg)
Step 2.
Choose IPP KEY LOAD in the appeared list.
![](https://mstcompany.net/images/blog/2015/vx810-tamper/vx810-tamper_02.jpg)
Step 3.
Press F1 button
![](https://mstcompany.net/images/blog/2015/vx810-tamper/vx810-tamper_03.jpg)
After that, pin-pad will be reloaded and TAMPER ban will disappear.
Now you can upload software and KLK-key.