Hacking How do I fix 3DS blue light black screen?

PC64 · 2026-06-25T14:21:42+0100

Hi everybody, hope you’re all having a great day!
So recently, I sold a red 3ds to my friend at school, with CFW installed, which she said was working for bout a week. Then she was asking me how to fix a black screen with a blue light? (I’ve never seen this before, and I’ve hacked a couple 3ds before)
Now, she gave it back to me just to fix it, but I don’t know what to do, as I tried a backup I made before I hacked it, and it isn’t doing anything….
Before this, I didn’t have a problem with this one except the charging port not working, but one of my friends helped me with it.
Does anyone have any ideas? Cuz I’ve tried everything I can find.

Kwyjor · 2026-06-25T14:38:29+0100

PC64 said:
asking me how to fix a black screen with a blue light? (I’ve never seen this before, and I’ve hacked a couple 3ds before)

There are a bazillion threads about this same question.

Start with https://wiki.hacks.guide/wiki/3DS:Black_screen_unbrick .

PC64 said:
Cuz I’ve tried everything I can find.

If you're not going to provide more information about what you tried, then you're probably just going to get more advice about the same things you've already tried, and that will be a waste of time for everyone.

PC64 · 2026-06-26T14:27:16+0100

Kwyjor said:
There are a bazillion threads about this same question.

Start with https://wiki.hacks.guide/wiki/3DS:Black_screen_unbrick .

If you're not going to provide more information about what you tried, then you're probably just going to get more advice about the same things you've already tried, and that will be a waste of time for everyone.

I’ve tried to see if it was the RTCBug, and that didn’t work, I’ve tried to boot into the 3ds safe mode, and that didn’t work either. Ended up trying the SD Home Menu ext data and CtR transfer too. I’ve been trying this stuff since last months using the different guides, and I still can’t figure it out!
This console also has stripped screws cuz one of my friends gave this to me for free in non working condition cuz it was dead and the port wouldn’t work, which someone helped me with, so if I needed to get into the console, it’s gonna take a while…

Also, is the WiFi light, and 3d normally on during this issue or no? Cuz now all light go on, but no scree or anything else. Luma, Rosalina, and GM9 are all accessible

Hacking How do I fix 3DS blue light black screen?

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