Hi, I'm trying to repair an original Nintendo 3DS (1st gen) and I'm stuck because I can't find anyone with exactly the same issue.
Original problem:
At first the console had the common issue where the blue power LED turns on for a moment and then the system shuts off with a pop sound.
Because of that I replaced the speaker ribbon cable. After installing the new cable the console actually powered on while it was still disassembled, so it seemed like the repair worked.
However, after I reassembled the console, a new problem appeared.
Current symptoms:
– When I press the power button the system immediately shuts off.
– If the speaker ribbon is connected, I hear a short “pop” sound from the speakers.
– The blue power LED does not turn on.
– No screens turn on.
Charging behavior:
– With the battery inserted: the orange charging LED stays on normally.
– Without the battery: the orange LED turns on for about 3 seconds and then turns off.
Things I already tried:
– Completely disassembled the console again.
– Replaced the speaker ribbon cable.
– Tried booting with the top screen, camera, and speaker ribbons disconnected.
– Re-seated the WiFi module.
– Checked ribbon connections multiple times.
The behavior is always the same: instant shutdown (with a pop if speakers are connected).
At this point I'm wondering if it's:
– a blown fuse,
– a damaged connector,
– or a mainboard issue.
Has anyone seen this exact problem before on the original 3DS?
Any help or ideas would be appreciated!
Posted by Intelligent-One5523