Switch Error 2110-1118, Wifi error - Nintendo Switch - TronicsFix

I replaced the fan for this switch and the owner said the Switch worked fine before that. Now it gives wifi error. Fan replacement couldn’t have caused this problem, right? Is this error software problem or Wifi/BT IC problem? Everything else works fine. Joy-cons work wirelessly and no shorts or damage around Wifi/BT chip.

Nintendo Switch WiFi chip replacement part 2

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Error Code: 2110-1118 Nintendo Switch : r/NintendoSwitchHelp

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No Wifi or Bluetooth: Error Code 2110-1118

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SWITCH 通病WIFI故障維修Nintendo Switch ERROR CODE won't

Switch OLED Wifi Error 2110-1118 : r/consolerepair