3DS blue power light flashes then switches off (often with a pop from the speakers)
A 3DS-family console that flashes its blue power light for a second or so and then shuts off - often with a pop from the speakers - usually has a ribbon cable that is torn, unlatched or not fully seated, or a poor battery connection. It is especially common straight after a screen or hinge repair. Check the battery and charger, then reseat and inspect every flex cable before looking at fuses and diodes.
Written by the CircuitScope research team in our own words, from the sources listed at the end, and checked by our moderators.
A 3DS-family console that flashes its blue power light for a second or so and then shuts off - often with a pop from the speakers - usually has a ribbon cable that is torn, unlatched or not fully seated, or a poor battery connection. It is especially common straight after a screen or hinge repair. Check the battery and charger, then reseat and inspect every flex cable before looking at fuses and diodes.
Difficulty: Hard · Time: about 1.5 hours
Also applies to: New Nintendo 3DS XL, Nintendo 2DS
Related codes / lights: Blue power LED on briefly then off, sometimes with a speaker pop, Charge LED lights then goes dark immediately, or blinks (battery connection)
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