The Eken W70 tablet, specifically using the WonderMedia WM8850 chipset and V20 build (often marked on the PCB or screen, such as "W70_V20_20121114" or similar late 2012 dates), commonly requires specific WM8850 firmware files to be flashed via SD card. Key Information & Files: Firmware Source:
(v2.0) is an early Android tablet featuring the WonderMedia WM8850 processor, and its firmware is primarily designed to automated system recovery and rooting capabilities via a microSD card Key Feature: Automated Script-Based Installation eken+w70+v20+wm8850+firmware+link
The most helpful resources for this specific hardware configuration are typically found on legacy developer forums. Here are the most useful articles and archives for your search: The Internet Archive (Wayback Machine) The Eken W70 tablet, specifically using the WonderMedia