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 ERROR CODE won't connect to WiFi / Internet

2110-2003 Error Code Fix for Nintendo Switch - Support.com

Fix Nintendo Switch ERROR Code: 2110-1118 Wireless Communication

Fix Nintendo Switch ERROR Code: 2110-1118 Wireless Communication

First Switch attempted fix - Nintendo Switch - TronicsFix

No Wifi or Bluetooth: Error Code 2110-1118

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

SOLVED: Nintendo Switch Internet Connection Not Working

My Switch OLED has an error code Nintendo doesn't know about

Nintendo Switch OLED Error 2110-1118!!! Wifi Card is DOA