Hardware 3DS XL Black screen

[Zeffog]

Hello, i recently bought a Old3DS XL that boots to a black screen. I've opened it up tried to replace the wifi card to no success, removed the motherboard and reínstalled all the ribbon cables, no signs of water damage or short-circuits, but i did notice a screw was missing and some of them were stripped. The only sign of life is the blue light when i turn it on and the fact that if you try to flash ntrboot it loads the Safeb9sinstaller does half the checks and then shuts down. This also happens if you replace the boot.firm with godmode9 or luma. I believe this could be a problem with the software or NAND but have no way to confirm this. Anyone that could figure this out?

 

[MrMcTiller]

Does it fail or just turn off.

 

[Zeffog]

Does it fail or just turn off.

I see the ''checks completed'' for a brief second and then it instantly turns off.

 

[MrMcTiller]

Hmm.... Have you tried to look at/around the NAND? Maybe something is broken. Look for any signs of broken fuses and things like that.

--------------------- MERGED ---------------------------

I see the ''checks completed'' for a brief second and then it instantly turns off.

Also, here is a guide to replacing the motherboard. Use it to take it apart and put it back together. I know you said you already did it, but sometimes you have to do things a couple of time. https://www.ifixit.com/Guide/Nintendo+3DS+Motherboard+Replacement/6017

 

[Zeffog]

I don't see signs of blown fuses, but there is a small see through white ribbon cable right next to the catridge slot that seems to have been bend or snapped, but it is still attached.

 

[MrMcTiller]

I don't see signs of blown fuses, but there is a small see through white ribbon cable right next to the catridge slot that seems to have been bend or snapped, but it is still attached.

Can you upload a picture?

 

[Zeffog]

It doesn't let me upload a image but it's just a straight line through the ribbon cable looks like it's bend

 

[MrMcTiller]

It doesn't let me upload a image but it's just a straight line through the ribbon cable looks like it's bend

YOu don't have an option on the bottom right that says "Upload a File"? That lets you upload an image.

 

[Zeffog]

It's pretty hard to see, it's the line that cuts through the black lines.

 

[MrMcTiller]

The wire next to the text RA7 on the motherboard

 

[Zeffog]

Yes that one, its a little easier to see on the first pic.

 

[MrMcTiller]

Yes that one, its a little easier to see on the first pic.

I think that that is the touchscreen input

 

[Zeffog]

I think that that is the touchscreen input

Could this be the problem?

 

[MrMcTiller]

I don't think so, but maybe.

 

[Zeffog]

I can't really test it since i don't have another 3DS.

 

[MrMcTiller]

I can't really test it since i don't have another 3DS.

I have one, I will test it and tell you tomorrow. I have to go home... I use the school internet.

--------------------- MERGED ---------------------------

Keep looking for anything that is wrong.

 

[Zeffog]

I have one, I will test it and tell you tomorrow. I have to go home... I use the school internet.

--------------------- MERGED ---------------------------

Keep looking for anything that is wrong.

Okay, thank you!

 

[MrMcTiller]

Okay, thank you!

OK, so I unplugged the wire on my 3ds, and it still booted, but the touch screen didn't work, so I don't think that that is the problem.

 

[Zeffog]

OK, so I unplugged the wire on my 3ds, and it still booted, but the touch screen didn't work, so I don't think that that is the problem.

Okay thank you for trying, could it just be a bad motherboard?

 

[MrMcTiller]

Okay thank you for trying, could it just be a bad motherboard?

It might be. I honestly don't know. You didn't find any other broken things did you? Also, does the power turn off when you turn it on?