Your installer is BS and lying to you. All mod chips come from China. Makes no difference if you buy it from Amazon or AliExpress. They are simple and easy to manufacture, not like they are making 4nm chips, so QC isn't much of an issue. Plus, it's so cheap, mine were $8 USD and Amazon was selling at $20+ so I figured, if I got a bad one, I could just easily buy another.
Here's how most AliExpress sellers classify their modchips for Switch compatibility:
- NS = V1 and V2 switch
- Lite = Switch Lite
- OLED = Switch OLED
As for the modchip itself, there are these variations:
- RP2040 picofly = probably the most common one now
- Instinct-NX V6 = very similar to the one above
- HWFLY = not many sell this anymore
If you plan to solder on your own, go to YT and search:
- soldering tips
- look for the video with the asian guy
- my first solder job was crap but after watching this video, much easier and higher quality joints