Download the firmware RAR file and extract its contents (e.g., FirmwareInstall folder and wmt_scriptcmd file) using software like 7-Zip or WinRAR.
If you cannot find an exact EKEN W70 or V20 link, try generic firmware. The WM8850 is surprisingly standardized. Look for files labeled:
Upgrading your device's firmware can bring numerous benefits, including:
If the tablet still boots, navigate to Settings > About Tablet and check the Model Number and Build Number. Look for strings containing WM8850 and W70 .