I'll get the unpatched part out of the way first. The serial starts with XAJ7003 which I believe is unpatched hardware that can be more easily modded. I don't intend to do this but it may be that the previous owner tried and bricked the console.
I bought a used "junk" switch from Japan and it failed test #1 - it doesn't turn on. No charging/battery icon and no signs of life. I did a bunch of tests listed below, and any parts or tools used are verified working from my store bought and still working fine Switch.
# Plug it in to charge for a few hours (official Switch charger to wall and USB to PC)
# Use a fully charged battery from a working Switch
# Hold the power button for 20s and then press again
# Open up and clean all ribbon cables and re-apply thermal paste
# Try to power on while docked in case the screen wasn't working
# Press the power button directly on the board/ribbon
# Test continuity on various things with multimeter (I don't really know what I'm doing here but everything I tested had continuity)
+
If I plug it into my computer it's listed in Device Manager as APX (!). Not sure if that means anything.
The internals were all very clean and beautiful other than a tiny bit of dust, which hopefully suggests nobody has opened it up to tinker before me.
I'm hoping someone could give me advice on what to try next.
I'll get the unpatched part out of the way first. The serial starts with XAJ7003 which I believe is unpatched hardware that can be more easily modded. I don't intend to do this but it may be that the previous owner tried and bricked the console.
I bought a used "junk" switch from Japan and it failed test #1 - it doesn't turn on. No charging/battery icon and no signs of life. I did a bunch of tests listed below, and any parts or tools used are verified working from my store bought and still working fine Switch.
# Plug it in to charge for a few hours (official Switch charger to wall and USB to PC)
# Use a fully charged battery from a working Switch
# Hold the power button for 20s and then press again
# Open up and clean all ribbon cables and re-apply thermal paste
# Try to power on while docked in case the screen wasn't working
# Press the power button directly on the board/ribbon
# Test continuity on various things with multimeter (I don't really know what I'm doing here but everything I tested had continuity)
The internals were all very clean and beautiful other than a tiny bit of dust, which hopefully suggests nobody has opened it up to tinker before me.
I'm hoping someone could give me advice on what to try next.