: If the screen doesn't respond after an update, it usually means the firmware you used didn't include the
Look for firmware labeled W70-1.5.0 or higher, or generic WM8850-MID builds. Open the FirmwareInstall/config folder on the SD card.
: A common model prefix for WonderMedia-based tablets, often associated with Eken-style devices (e.g., WMC15797Z UPD