Press and hold the buttons simultaneously.
If your tablet is functional but you want to update or reinstall the OS: Insert the SD card with the dload folder. Go to > Updates . Tap Menu or Local Update . The system will detect the UPDATE.APP on the SD card. Huawei T1-701u Firmware Sd Card
When the Huawei logo appears, release the button but continue holding both Volume buttons. Press and hold the buttons simultaneously
The Huawei update system looks for a specific folder structure to trigger the installation. Huawei T1-701u Firmware Sd Card
Are you trying to or just update the software?
Locate the folder named dload . Inside this folder, there should be a file named UPDATE.APP . Connect your MicroSD card to your PC.