I've taken a Superwifi AP apart, and documented my findings on Wikidevi. This device is distributed by various ISPs under various names, but is know by Arcadyan as WE410443 .
Strangely, the device does not seem to have serial/JTAG headers? I don't see anything that resembles it? Am I overlooking something...?
i also couldnt find it but when you take a look at the post i have linked in this topic about the BT disc you can see there is a small point for the rx
the superwifi is different from the other devices the other devices got only 128mb of ram and the superwifi 1gb
I think you're mistaken here. The Winbond W631GG6KB memory chip is 1 Gbit, which is 128 Megabyte. See the specsheet. Also, the screenshot in your first post is pretty clear
There are quite a few test points on this device, two of them are likely to be serial. You'll often find serial near to the spi-nor chip (that makes TP4/ TP5 candidates, also because they're physically larger - easier to attach to; obviously this is merely guesswork based on the pictures). Another potential option could be the unpopulated U13 (level shifter, omitted from the production PCB - if so, careful with the voltages, they are probably below 3.3V and at SOC voltage without any protection)
After measuring, all TPx points are indeed not 3.3V, but 1.2V instead. So you can't attach a serial console without a level shifter. Or at least, I still haven't found the right points to attach to.