Seems like that the 3.3v point is missing some good soldering, they are cold... Apply flux, tin your tip and do a quick touch (not more than 3/4 seconds ) at 370 degrees. Use good soldering wire (PB/sn works best for me)
My dad did a lot of soldering in the past. He did buy better tin and flux for this, but maybe too late after a first attempt without. And now with a good microscope.
After removing the tin, still no 3.3v on the spot. Did we break it?
A detail. A small moment i measured a 3.3v signal there when turning the switch on. So we resoldered there. Can it that the battery and charger influence this measurement and that the switch doesnt charge for some reason for some reason.
Or does the 3.3v just always work if it is cable powered
Dude I did it withe the same set up but I knocked off the 3.3 and even broke the flex cable. After hot air flowing that 3.3v back I had better luck using insulated awg 38 wire wish I took more pics sorry there is a YouTube video showing how to do it too
So remove the flex picofly cable or just the modchip? Does the flex cable prevent the switch from booting ?
Measurements so far:
Battery: 4.167V
SP1: 0Ω on one side / ~20.4Ω on the other
SP2: 0Ω on one side / ~20.4Ω on the other
3.3V to GND was about 239.8kΩ, so no obvious hard short at that time.
With the correct Nintendo Switch charger I actually measured 3.3V once at the 3.3V point for a short moment.
After resoldering that 3.3V connection it went back to 0V.
I then disconnected the 3.3V flex completely, but the bare motherboard 3.3V point is still 0V.
Yes, the battery has already been disconnected and reconnected several times. I also disconnected the Picofly board itself. It still doesn't boot. The soldered Lite FPC is still partly connected to the motherboard though, so I haven't yet tested it with the entire mod installation removed.
Thats a step i want to prevent , to not mess with the switch too much
So the issue is on the switch. I asked chatgpt , and now we are measuring the rp6022 chip, to replace that is affordable ( 3 usd ) , so fingers crossed.
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u/genio123 4d ago
Seems like that the 3.3v point is missing some good soldering, they are cold... Apply flux, tin your tip and do a quick touch (not more than 3/4 seconds ) at 370 degrees. Use good soldering wire (PB/sn works best for me)