This means the certificate has been lost.
xprog m 5.84 with usb dongle, no need activation, but Please be noted to click on the registry before opening the software each time to prevent loss of the certificate.
What to do?
Send back to the seller for repair.
Replace the chip, solder by yourself.
This is ATMEGA64A Chip For XPROG-m V5.84 Replacement Soldering Chip
PS: This Chip only works for XPROG V5.84 version ,it does not supports any low version update to V5.84.
Where to buy the ATMEGA64A Chip?
Please feel free contact at E-Mail:Sales@OBDII365.com
XPROG Box V5.84 using tips:
Everytime before run V5.84 software ,please MUST CLICK 5.84Registry File .So it can avoid lost certificate.
Please MUST click this before run V5.84 software
Do not try to update it ,otherwise device will dead, buyer suffer it .
XPROG Box V5.84 tech support: www.obdii365.com