Hardware new 3ds xl wont turn on after replacing my top screen

[johanw90]

i replaced my top screen,and damaged the digitizer cable after reassembly the new 3ds xl wont turn on.
If i put in the charger the orange light turns on for a few seconds.
without charger i dont get any sign of life.

i have tried the battery of a friend but still nothing

can this be the problem of the digitizer?

 

[johanw90]

After losen the cable at the top corner i get a blue light.

 

[TurdPooCharger]

That cable you loosen appears to be one for either the camera bar? Check if that corresponding cable has a black underside, and if that's the case, it's the camera one. The symptom you described where the 3DS refuses to turn and stay on usually means broken lead. You'll need a new camera bar.

 

[bladerx]

Any module damaged or disconected will have that effect, the 3DS won't boot.

 

[johanw90]

I will try a new camera.

 

[johanw90]

But does it need a camera to boot?

 

[TurdPooCharger]

But does it need a camera to boot?

The 3DS lineup is very picky when it comes to booting with unsecured cable connections.
- Old 3DS can have BSoD (black screen of death) with loosen WiFi card.
- New 3DS shuts off with a loud pop when speaker flex cable is krinked.
- One fellow member on this forum, his New 2DS XL will not boot without connection to bottom LCD.
- Some weird cases of fixing BSoD with sound after re-seating camera cable, so yes camera is needed.

If the motherboard cannot communicate with some of its essential peripherals, the system will refuse to boot or boot up blank.

Double check that cable is the camera bar one. I'm going off by the infornmation at ifixit.com. They have a N3DSXL teardown tutorial that shows but does not explicitly specify which of those two go to that connector you pointed out.

 

[Pluupy]

The 3DS initiates a boot sequence when it starts. It will check all component connections are secured. You need to make sure all ribbon cables and doodads are properly connected. Just so you don't get tired by constantly closing it up to check if it's all good, don't even bother putting the bottom plate back on. What I like to do is hold the battery against the three pins and "bread box" it like troubleshooting desktop computer components.

The 2DS does not need a camera as my niece's boots without it. If you try to use the camera in any software with the console powered on, though, it will instantly crash the console.

 

[johanw90]

i replaced the digitizer, now i hear the boot sound but only black screen.
What can be the problem.

 

[TurdPooCharger]

The 2DS does not need a camera as my niece's boots without it. If you try to use the camera in any software with the console powered on, though, it will instantly crash the console.

On a N3DSXL, this might not be the case because of the face tracking. He can try turning off the 3D if the system skips checking for camera at boot.

i replaced the digitizer, now i hear the boot sound but only black screen.
What can be the problem.

Try recovery mode, https://www.3dbrew.org/wiki/Recovery_Mode
to see if the LCDs still work.

If they work in Recovery Mode but don't in normal boot into Home Menu, you have a weird (uncurable?) case of BSoD [black screen of death].

Refer to this thread from another user with boot symptoms like yours:
Black Screens, Everything works in system update mode, Error when camera disconnected

Check my post #12 listing past examples of this specific soft brick failure:
https://gbatemp.net/threads/black-s...when-camera-disconnected.493318/#post-7766656

 

[johanw90]

i tried recovery mode got black screens, then it wont boot anymore even not a blue light.
i disconnected camera again and now i have blue light with popping sound.

so it realy must be the camera i think

 

[TurdPooCharger]

i tried recovery mode got black screens, then it wont boot anymore even not a blue light.
i disconnected camera again and now i have blue light with popping sound.

so it realy must be the camera i think

Popping sound means the speaker cable assembly is bad. You gotta replace that. For the camera, I say you replace that too. Kinda sucks you got a trifecta of digitizer, speaker, and camera going bad on you. Did you pull those flex cables bare hands and not with electronic tweezers?

 

[johanw90]

after months i still have problems.
With a new camera i hear popping sound,
With the original camera i hear the boot sound but 2 black screens.
booting in recovery mode gives me another sound but also black screen.

 

[johanw90]

somebody that can help?

 

[TurdPooCharger]

somebody that can help?

We're out of ideas. Your popping suggests it's a bad audio flex cable. Did you replace that too along with the camera?