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Hacking Hardware We can now use the AX88772B on the Wii U

  • Thread starter Thread starter SDIO
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SDIO said:
When I tired that with my adapters it somehow didn't work. When I modified the eeprom it seemed like the adapter ignored it completely and fell back to its default vid PID. I assumed that was because of the checksum but didn't bother to try further as the dumped eeprom from the ugreen adapter worked
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I also bought two of the apple adapters and it seems that that method worked with one of them, but not the other. i've not tested on the wii yet though. i've attached the original dumps here.
 

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What does the PC say to the adapter? Did you modify the ROM before flashing it?
 
SDIO said:
What does the PC say to the adapter? Did you modify the ROM before flashing it?
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No, those ROMs are the ones that came on it. I then modified them using the guide by @Pickpickles . I then each back and one showed up as ax88772 and the other as ax88772a. i then flashed the ax88772a one with the dump you provided and it shows up with the correct vid:id now. edit: they both appear to work though
 
Last edited by flanter21,
Can someone help me build the ASIX eeprom executable? I've tried in Windows and Mac but I'm getting some gcc compiler errors. First it said it couldn't find endian.h so I edited the code to read <machine/endian.h> and now it says there are errors with undeclared functions with ISOC99.

Edit, I got it working by adding some code for the undefined functions:

#if defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define htobe16(x) OSSwapHostToBigInt16(x)
#define be16toh(x) OSSwapBigToHostInt16(x)
#define htole16(x) OSSwapHostToLittleInt16(x)
#define le16toh(x) OSSwapLittleToHostInt16(x)
#endif

I first tried the editing the pid and vid method but it didn't seem to work or it doesn't update the vid and pid properly in Mac OS settings screen. I flashed the UGREEN eeprom and it also did not show a change in the pid and vid but when I unplugged the adapter and plugged it into a PC it did show up as properly flashed with the new vid and pid and I tested it working on a Wii U.

I was looking into modifying the MAC address to match the original eeprom but it shows up in a strange order in a hex editor. For example if I check the MAC address it's in a format like AB-CD-EF-GH-IJ and in the hex editor it shows up as CD-AB-GH-EF-IJ. So if I want to flash the original MAC address back to it but keep the UGREEN rom, I just hex edit the values from the original in this swapped format?
 
Last edited by wii121,
alxxn said:
would this work with asix AX88179A?
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It's already been said that this chip isn't supported. Only AX88772 series, but not all variants. From my understanding, these are minimal patches that identify near-identical chips with differing IDs as if they were AX88772 (that specific chip from the series) and switch up a few things.

The one you mentioned would probably require completely different drivers, and I can't imagine anyone who would want to write new drivers for Wii U...
 
Last edited by lightwo,
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Does someone have the original Nintendo Wii Ethernet adapter and could share the eeprom?
 
Thank you to everyone who has worked on this project so far. I wanted to make it easier to modify the binary SDIO uploaded in post #11 using the instructions wii121 provided in post #44.

The serial number and MAC address in the SDIO provided binary will always be the same. The MAC address is the problem, if you plan on using more than one on the same LAN. This will fix that with minimal effort.

I made a CGI script that will modify the binary for you with a random MAC address using the Nintendo OUIs expected to be found in an official Nintendo USB Ethernet dongle (00:1E:A9, 00:22:AA, 00:24:44, 00:09:BF) for the first three bytes. The last three bytes will be completely randomized.

Note: I overhauled it since my original post so that you can flash it to look like an A1277, official Wii/Wii U Ethernet dongle, generic AX88772, or AX88772A. The Nintendo or AX88772 settings will be best for most people, but you have a lot of flexibility.

Please backup your original firmware before flashing the payload you get from my CGI script. I added the ability to allow users to upload their original A1277 binary so the web site can extract their factory serial number and MAC address and mod them into the UGREEN firmware so that it's compatible with the Wii U while retaining the original factory identifiers. That should be the recommended use case for the majority of people.

You can edit any of the fields on the web site for a custom MAC, serial number, manufacturer, product name, or even VID/PID. You probably want to leave VID/PID alone.

There's also a python script for doing all of this locally if you prefer. It's a little bit more flexible since there's no input sanitization, but I doubt that it gives you enough freedom to break anything.

This is my first post on this site, so I can't link to the CGI script. It's available in the next post after mine. Thanks SDIO!
 
Last edited by ItWasntMeWhoFarted,
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SDIO said:
Does someone have the original Nintendo Wii Ethernet adapter and could share the eeprom?
Click to expand...
scan-260707-0001.jpg

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asix_eepromtool

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Device is 0B95:7720
 

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Fabax01 said:
View attachment 581335
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asix_eepromtool

------------------------------------

Device is 0B95:7720
Click to expand...
Thank you so much for that!

I just found my "UtechSmart USB 2.0 Fast Ethernet" and dumped the bin for that, but it's identical to the ugreen binary from post #11 other than the MAC address, serial number, and the product identifier is AX88x72A instead of AX88772A.
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Fabax01 said:
View attachment 581335
------------------------------------

asix_eepromtool

------------------------------------

Device is 0B95:7720
Click to expand...
It looks like this is genuinely an AX88772, rather than an AX88772A pretending to be a AX88772. I don't recommend trying to flash that to an A1277, for example. The serial number is 000001, and the product identifier is "AX88772A " (with a trailing space) but otherwise it would look the same as the ugreen binary (cosmetically) from post #11 in any other way.

I'm very interested in dumps from any AX88772/AX88772A anyone comes across in order to achieve maximal compatibility with the A1277 on non-nintendo devices that expect a AX88772. It's probably unnecessary to go beyond the ugreen binary with a random MAC, but I'm interested in all quirks like that trailing space in the official Nintendo adapter. Please upload eeprom dumps for any of these devices you come across.
 

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Last edited by ItWasntMeWhoFarted,
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