How To Repair Nintendo Switch WiFi Not Working

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How To Repair Nintendo Switch WiFi Not Working
Device	Nintendo Switch Lite
Affects part(s)	Logic Board
Needs equipment	Hot Air Station, Soldering Iron, Tweezers, Reballing Stencil
Difficulty	◉◉◉◉ Specialist
Type	Soldering

Problem description

Nintendo Switch Lite shows error 2110-1118, cannot connect to WiFi, no networks appear, or WiFi toggle is greyed out.

This fault commonly occurs due to:

1. Failed WiFi IC (Broadcom)
2. Missing / knocked-off resistors next to the USB-C port after a previous repair.

Nintendo Switch Lite - WiFi Not Working

Nintendo Switch Lite - WiFi IC Location

Symptoms

• WiFi toggle missing or greyed out
• “Error Code: 2110-1118” when searching for networks
• No networks detected
• Bluetooth may also be affected (shares the same IC)
• Issues appear immediately after board repair (port replacement, power IC work, etc.)

Solution

Diagnostic Steps

1. Software Ruling-Out

• Try factory reset (no data loss) → Settings → System → Formatting Options → Reset Cache
• Try full initialize (if customer approves)
• If WiFi toggle is missing: hardware fault confirmed

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Nintendo Switch Lite - Missing Resistors Next to the Type C Charge Port

2. Visual Inspection (Board Level)

• Inspect the board area around USB-C
  • Look specifically for knocked-off resistors near the area circled in the provided image
• Inspect WiFi IC for:
  • Overheating marks
  • Reflow attempts
  • Physical damage
  • Cold solder pads
    

    

    Nintendo Switch Lite - Missing Resistors Soldered Back

Repair Steps

Nintendo Switch Lite - WiFi Fixed Successfully After Replacing WiFi IC or Replacing Damaged/Missing Resistors

Case 1 — WiFi IC Replacement

1. Remove Old WiFi IC

• Preheat board
• Lift carefully to avoid pad damage

2. Install Donor WiFi IC

• Important: Only use an original IC pulled from a donor Switch Lite
• Reball
• Align and reflow
• Inspect for bridges under microscope

3. Testing

• Reassemble partially
• Power on → WiFi toggle should appear immediately
• Connect to network to confirm functionality

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Case 2 — Replace Missing Resistors Near USB-C

Common Fault

• One or more of the 4 tiny SMD resistors near the USB-C port are missing
• Usually damaged during USB-C desoldering

Steps

1. Clean area with flux
2. Inspect pads for ripping
3. Replace missing resistors
   • match values from donor board
4. Microscope inspection for bridges or cold joints
5. Reassemble and test WiFi
6. WiFi should function properly