: Send a photo of the back of your VCI (connector) showing the serial number to support@x431.com .

This comprehensive guide will walk you through exactly what the activation code is, why it goes missing, and the step-by-step processes to recover it and get your scanner back online.

If you lost your Launch X431 activation code, the solution depends on whether you have the original "Private Confidential" envelope or need to recover it digitally through the device or manufacturer. Immediate Recovery Steps

If you have lost your Launch X431 activation code, follow these steps in order. Do not call support yet—most of these steps can be done instantly via the internet.