Switch OLED that won't sync with the blue Joy-Con
I replaced the side rail and it still doesn't work
Some component on the board is preventing it from syncing
They are related to the blue Joy-Con line
All these photos I sent you are all the...
It looks like this older version of the hwfly modchip (before they also cloned the picofly) :
https://www.chipeinbau.de/produkt/nintendo-switch-hwfly-modchip/
You need to either the USB flat cable or it seems you can also update the firmware...