Wm8850 Mid7 Puzhi W01 8223 Ft5206 W70 Wmc15797z Upd May 2026
This is the most reliable component in the entire build. FT5206 is a capacitive touch controller from FocalTech Systems.
Technical Specs:
Troubleshooting the FT5206: If your screen displays video but doesn't respond to touch: wm8850 mid7 puzhi w01 8223 ft5206 w70 wmc15797z upd
Note: If you are compiling a custom kernel for this tablet (e.g., using Linux 3.0.8), you must set CONFIG_TOUCHSCREEN_FT5X06=y.
The string begins with WM8850. This is a system-on-a-chip (SoC) produced by WonderMedia Technologies, a subsidiary of VIA Technologies. Do not confuse this with the Allwinner A-series or Rockchip RK-series. This is the most reliable component in the entire build
Why this matters for repair: The WM8850 is not standard Android. It requires a proprietary firmware structure. You cannot flash a generic update.zip from a Rockchip device onto this MID7 motherboard. Attempting to do so will hard-brick the device (unrecoverable via standard ADB).
Given the breakdown, it's clear that "WM8850 MID7 PUZHI W01 8223 FT5206 W70 WMC15797Z UPD" relates to updating or configuring a specific type of electronic device. This could involve: Troubleshooting the FT5206: If your screen displays video
To tackle this mystery, let's break down the keyword into its constituent parts:
The biggest hurdle with these Chinese tablets is the naming convention. The model number on the back casing often differs from the model number on the logic board. Here is the breakdown of your specific device based on the search string provided:
W70 is a short code for the Realtek RTL8188CTV Wi-Fi module. This is a USB-based 802.11 b/g/n chip.
WMC15797Z is the unique serialization:
