A:The Xhorse VVDI super chips have to be reset to reuse them.
How to reset them?
Follow the steps below:
Step 1: Put the VVDI super chip into the keytool and open the xhorse app. 
Step 2: Go to keytool and select special functions
Step 3: Select “Set type of VVDI super transponder
Step 4: Scroll down to Reset VVDI super chip. It’s the last option on that page 
Step 5: Tap set