Follow the on-screen instructions, which typically involve holding the button while connecting the tablet to your PC via USB cable.
The most reliable method to revive a dead tablet is the Software Fix tool (formerly known as LMSA or RSA) provided by Lenovo. If your tablet can still reach the recovery
To fix a "dead" or bricked Lenovo Tab 2 A10-70L (the LTE version), you should use official Lenovo tools rather than unverified "GSM tools" from third-party sites, which can be risky. Enter Rescue Mode : Click the Rescue button
If your tablet can still reach the recovery screen but won't boot into Android, you can try a factory reset to clear software errors. Follow the on-screen instructions
: Enter your tablet's Serial Number (SN) or use the "Detect Product" feature. The tool will automatically locate and download the 100% correct, tested flash file for your specific model. Enter Rescue Mode : Click the Rescue button. Power off the tablet completely.