Hacking Unbrick service in....

[gamesquest1]

yeah i still wouldn't recommend anyone try it. but i think 5v to gnd seems at least safer than 5v to clk

obviously in a perfect world nobody would make the mistake, but when your dealing with adding a commonly used port to a device sometimes as i used in an example before children etc might want to put the 3ds on charge and there is a phone charger that conveniently looks like it will fit in the port

fingers crossed we never find out though

 

[Avalynn]

5v to ground still isn't something it would do, if you're lucky there is a reverse protection diode or fuse somewhere.

What I do not understand is why people don't just use all 5 pins of the micro usb? I mean if you are going out of the way to make a non-standard micro usb to SD card you might as well take it an extra step.

Use the 5v from the micro usb through a diode to get the 4.6v in for the 3ds (and have reverse polarity protection), wire that to the 3ds in power, and ground to ground. Use the other 3 lines for CLK, DATA0, and CMD. It just might be harder to find a micro usb cable that makes use of the ID line but they are out there. Now you can charge your 3DS via the micro usb port granted it's only using the power lines. I do not know if the eMMC has 5v tolerant inputs.

And if you really unsure just add a switch to the usb data lines so you can either put them to the intended pins or disconnect them when you want to charge.

 

[gamesquest1]

5v to ground still isn't something it would do, if you're lucky there is a reverse protection diode or fuse somewhere.

What I do not understand is why people don't just use all 5 pins of the micro usb? I mean if you are going out of the way to make a non-standard micro usb to SD card you might as well take it an extra step.

Use the 5v from the micro usb through a diode to get the 4.6v in for the 3ds (and have reverse polarity protection), wire that to the 3ds in power, and ground to ground. Use the other 3 lines for CLK, DATA0, and CMD. It just might be harder to find a micro usb cable that makes use of the ID line but they are out there. Now you can charge your 3DS via the micro usb port granted it's only using the power lines. I do not know if the eMMC has 5v tolerant inputs.

And if you really unsure just add a switch to the usb data lines so you can either put them to the intended pins or disconnect them when you want to charge.

Well the 3ds does have fuses so I presume it worst it would blow a fuse, which is still better than screwing the nand up, you wouldn't really be able to replace that. All this is just me being skeptical but I never was 100% about using ports that are common, maybe I should have more faith in people's abilities not to do something ill advised

As for using the 5th pin it was something I planned to do initially but it means either using non standard cables or making the cables myself, I suppose making the cables might end up cheaper than using standard usb cables anyway. I might have a look into it

 

[milerwan]

[...]Now you can charge your 3DS via the micro usb port granted it's only using the power lines. [...].

When you use generic Micro USB cable to modify it with SD adpter, wires are already placed and VCC (red) wire is necessary used for connect DATO, CMD or CLK.
If you make the cable yourself, you can solder the red wire to the pin that is not used at side of GND (black) wire of the Micro USB male connector.
Like this, real VCC (5V) point is not wired at all.

As for using the 5th pin it was something I planned to do initially but it means either using non standard cables or making the cables myself, I suppose making the cables might end up cheaper than using standard usb cables anyway. I might have a look into it

LOL, I made ​​the same point as you.