Please see this ARTICLE before submitting a ticket.

If you have tried the self-diagnostics and were unable to get your device working, it might be time to send it in for repair.

1. After going through the diagnostic process and confirming solutions did not work, click on the Submit a Service Request button.

Android Tablet looks like this:

For Smart Device:

2. You will be required to log in using your Lenovo ID in order to start filling out webform:

That is all, once ticket is submitted your case will be handled by us. 

For information on how to check Repair Status, see HERE