I tried to re-flash original FW follow your method by
1. Prepare original FW by drag to updater.exe then select USB Device
2. Hold the upper left corner of the screen firmly and Hold power button for at least 30 seconds or as long as possible, Result==> can't turn on unit(also USB can't detect USB device)
3. Open unit and disconnect Battery(wait 3-10min) then try again follow item no#2, Result ==> can't turn on unit(also USB can't detect USB device)
4. Tried no#1-3 again result still can't turn on unit.
Could you suggest me again for next action for repair it? (i have the knowledge about electronic circuit)
[IMG]C:\Users\PICSEN\Documents\Bluetooth Folder\20140911_220938.jpg[/IMG]
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