I did everything by your tutorial.
As I said before, I don't have experience with this, so I feel I am doing just administrative work here, anyway perhaps it helps.
First,
@n00b2015 I would like if you could read, verify, and answer each of these questions based on the OP: (almost a checklist)
1. Is your Teensy++ a Teensy++ 2.0?
2. Did you cut the track between the 3.3V and 5V pads?
3. Did you check there is no continuity between those pads?
4. Did you solder the 3.3V voltage regulator?
5. Did you check you get 3.3V between the regulator output and GND while it is powered?
6. Did you flash the appropriate HEX file to the Teensy? (NANDway_SignalBoosterEdition.hex)
7. Did you check all the "solder together" points in the Teensy have continuity, checking from the board side, pin to pin?
8. Did you connect *RB and *CE points to the appropriate solder point in the Wii U board, according to the NAND you want to dump? (see pictures in section 2. SOLDER THE TEENSY TO THE WII U BOARD)
=>
I guess it is RB2 and CE2 if you are trying to dump the WiiU NAND.
9. Did you check continuity between each solder point on the Teensy PCB, and the corresponding pin of the NAND chip directly? (that is, check between the Teensy board and the pins from PINOUT picture in section 2. SOLDER...)
10. Did you solder the ground cable to the same point as the it is in the corresponding picture in Section 2? (marked as GND with a red circle in that picture)
11. In a previous post you said:
"When i connect Teensy to PC and reassemble Wii U and press power button on, the light blinks blue and fan doesn't start."
But according to the guide on the OP, you must:
1. Start out with the Teensy disconnected from the PC.
2. Make sure that your optical drive, power button and your fan are all connected to the Wii U.
3. Plug in your Wii U power connector.
4. Turn on your Wii U. The power LED should turn blue and your fan should spin.
5. Plug in the Teensy to the PC via USB cable.
6. Open a command prompt from within the folder that you created above.
7. Type this command: "NANDway.py COM3 0 info"
Did you check actually following this sequence? That is, first with the Teensy
disconnected from the PC (and the Wii U disconnected from power), plug your Wii U to power and turn it on,
only then plug the Teensy to the PC via USB cable.
@Kafluke or anybody else with experience on this:
1. Point 4 in section 3 of the OP states:
"Turn on your Wii U. The power LED should turn blue and your fan should spin."
But as
@n00b2015 states, for him:
"When i connect Teensy to PC and reassemble Wii U and press power button on, the light blinks blue and fan doesn't start."
I suppose this is not the expected behavior, is there some reason this could happen, and a suggested way to fix this?
2. When
@n00b2015 runs NANDway.py, he gets a weird "0xff 0xff 0xff 0xff 0xff" reading from the NAND, and subsequently an error message. This reading suggests to me either bad power voltage on the Teensy, bad initialization of the NAND chip (due perhaps to point 11 in the checklist above), bad cabling, or (less probable) a very damaged NAND chip.
Do you know what could actually be a common cause for this, and a suitable solution?
@n00b2015's NANDway.py output below:
NANDway.py COM3 0 dump slc.bin
Pinging Teensy...
Available memory: 3776 bytes
NAND0 information:
Raw ID data: 0xff 0xff 0xff 0xff 0xff
Error reading size of NAND! Exiting...