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Hardware

  • Differences between "Wii" WODE and "Host" WODE

There at least exist two different revisions of the WODE.

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The difference between these two are the soldering points for resistors R3 and R4 on the back of the main PCB. While resistor R4 is soldered to a 24 kOhm resistor on the "Wii" WODE, the opposite is the case for the "Host" WODE regarding resistor R3. Swapping these on the "Host" WODE's main PCB at least seems to result in disabling firmware updates after all.

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At the same time, it is possible that the "Wii" WODE runs "internal" U-Boot version v1.00 instead of v1.01 on the "Host" WODE. Their binaries differ in size: 0x1C400 bytes for version 1.00 vs. 0x1C600 bytes for version v1.01.

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The SPI-NOR flash on the "Wii" WODE is a MX25L6405MC-20G while the "Host" WODE uses a MX25L6405DMI-12G instead. The difference here is their speed: 50 MHz vs. 86 MHz.

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The SDRAM size between a "Wii" WODE and a "Host" WODE is also different: The former usually carries 64MB while the latter only has 32MB available for usage.

 

Even the LCD PCB may differ on it's back with missing IC's and some different SD-Card slot:

Fig. 1: (TOP) - "Host" WODE LCD PCB (back side)

(BOTTOM) - "Wii" WODE LCD PCB (back side)

  • Differences between installed Firmware and used Hardware

According to the bootloader, the WODE is able to support up to a max. of 64MB SDRAM. It could be possible that this was dropped down to the usage of 32 MB instead, for the reason of costs to the end user.

 

Fig. 2: The upper WODE is the one labeled as "Host" while the lower one is labeled with "Wii" on the front. On the "Wii" WODE, resistor R3 is NOT connected. Instead, resistor R4 holds a 24 kOhm there.​

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  • "DEBUG"-Version of the WODE

It came as per random that there once also existed what seems to be a DEBUG version of the actual WODE main PCB. For reference, the images of it's front and back can be seen below. 

Fig. 3: The front of the "DEBUG-WODE" is missing it's POWER connectors to the Wii mainboard as well as the DVD drive of the console.

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Fig. 4: The back of the "DEBUG-WODE" has the POWER connectors attached. Even the "J6" debug port is soldered on which allowed for JTAG access to both: the Actel ProASIC3 FPGA as well as the LPC3143 MCU and GPIO pins.

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