I would like to know how to repair the charging components I have several good motherboards so I have no qualms if it dies. If I could get some pictures to guide me it would be great.
There are several threads in this
3DS - Console, Accessories and Hardware section that are relevant to recharging. I'm currently too lazy to pull them up, but they can be looked for in the forum's advance search option:
https://gbatemp.net/search/
recharging related components
- country/regional power outlet plug standard
- AC charger (input voltage & amp versus the above)
- charger port (with or without dock contacts)
- power supply filter (EM10)
- F1 + F2 microfuses (04000026NR ???)
- IC charging chip (BQ24072)
- PMIC chip (93045A4)
- powerboard / YXBA button board {n3DS / n3DSXL only}
- battery (CTR-003, SPR-003, KTR-003)
- miscellaneous loose fitments, dirty/contaminated contacts, broken solder joints / connectors
Since the orange LED indicator does come on when the AC charger is plugged in, we can rule out plug outlet, AC charger, charger port, and power supply filter.
A lucky scenario would be one of the two fuses are blown. You'll need a phillips sized 'PH00' screwdriver to disassemble the o3DS and a multimeter if you intend to test them for continuity.
If they're bad, don't gut the fuses from the donor motherboards. Buy replacement microfuses from eBay, ZedLabz, Aliexpress, or even DigiKey, Newark, Mouser.
I don't recommend replacing the fuses yourself if you don't have a soldering iron and/or don't know how to solder.
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For bad charging or PMIC chips, these can only be fixed with a hot air station. If the problem is one of these, you're probably better off buying a replacement o3DS motherboard from Aliexpress instead of replacing those chips if reflow soldering is not up your alley.