Alright I just had this problem with my 3ds new xl, I've been letting it sit after playing around with it for a bit seeing what I could do, noticed it took unusually long to hard off when i held the power button. Today I turned it on and noticed the red blinking light, it to was blinking slowly.
So after looking threw these I chose the simplest one, and huh. I just left it on for like 5-10 minutes while having a smoke.
I seem to have caused some sorta error in the bootup that just caused it to boot really slowly, I imagine an older model woulda been even longer. It seems to have worked through whatever error that was filling the cpu now that its got to the homescreen.
I also know it happened right after it was charging and we flicked a bunch of breakers on and off a few times, we were checking wiring. Oh and my sd is 256 gigs I could see that causing the occasional problem on boot.
Alot of these other solutions like taking out your battery, performing different kinds of resets for clearing you're caches. I'm sure taking out my battery or letting the battery run dry today woulda fixed it too.
Just Blow The SD Card And It Should Work
it does not work
door Haider Ali
i had a new 3ds xl that turned on but the screens were black and you could hear the home menu and the music it played it turned out it was the camera had a micro tear because when i put a known working camera in it ...the system fully booted up and then the screens turned on and worked as normal so if you have a new 3ds xl or a new 3ds that turns on fully and just has a black screen then its your cameras ribbion cabel hope this helped reply to me if it did thanks
Mine gives me a black screen with an error code
door omeaga deku
omeaga deku has the same problem as me. When I updated I could not use standard firmware. (I booted off luma with a .3gx plugin loader)
EDIT: It only happened recently (like a week or 2 ago)
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