Ensure you are using the correct USB port (often the USB 3.0 port) and that the Rockchip drivers are installed.
Once the box is detected (green light in the tool), click the "Restore" button. t9 firmware android 10
Open your device (carefully pop off the back cover) and look at the motherboard. You should see printed text like “T9_MB_V1.2 2019/11/15.” Write down that number. The firmware must match this exactly. Ensure you are using the correct USB port (often the USB 3
If you already own a T9 unit running an older OS (Android 8 or 9), t9 firmware android 10
