Hi mikerb and shane and guys, thanks for the links for the firmware and tools, which I have them all already, but still no one solution/combination success enough to make my tablet alive. I'm pretty sure that this superpad III is a total fake, because it's only has one microsd slot, just like FT3, but from the dmesg message, it's X210, not X220.
Recently after a full 1 week of searching and doing some tweaking, I've managed to boot froyo from sdcard/microsd slot. I've posted about that
here.
My problem is now it seems that the NAND flash got corrupt/bad blocks, so I can't do flash_image on it (as well as direct cat or dd, although it raise no error message), so maybe you guys now where I can download the busybox precompiled with mtd-utils??? I;ve tried so many busyboxes but unfortunately they don't include mtd-utils applet. I've tried cross-compile mtd-utils to run on arm, but still unluck, says something of segmentation fault and maybe needed to be cross compiled with uclibc for this tablet..... however, at least it can live
Another problem is random freeze and hang when I run froyo from SDCARD, think it's an sdcard issue/quality/speed. I've tried hacking memory params in init.rc and increase sdcard read_ahead, but seems no significant effect....
Still finding another solution though....