If your tablet is functional, use the built-in update tool. This is the only method that . Lenovo Smart Tab M8 Specs | Esper Device Management
If you only need specific drivers or recovery media, you can enter your serial number on the Lenovo Drivers & Software page . How to Update Firmware (Official Methods) Method 1: Over-the-Air (OTA) Update lenovo tab m8 tb8505x firmware
Connect your tablet via USB; the tool will automatically detect the and find the matching "Rescue" firmware. If your tablet is functional, use the built-in update tool