iphone XS max no Wifi singl Network Fix repair

If your iPhone XS Max is showing “No Wi-Fi signal” or the Wi-Fi isn’t working, here’s a complete step-by-step repair and fix guide 👇


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🔧 Basic Software Fixes (Try these first)

1. Restart the iPhone

Press and hold the Side button + Volume button, then slide to power off.

Wait 30 seconds, then turn it on again.



2. Check Airplane Mode

Go to Settings → Airplane Mode.

Turn it ON for 10 seconds, then OFF again.



3. Forget and Reconnect Wi-Fi

Go to Settings → Wi-Fi → (i) next to your Wi-Fi name → Forget This Network.

Reconnect and re-enter the password.



4. Reset Network Settings

Go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.

(This removes all saved Wi-Fi and VPNs.)



5. Update iOS

Go to Settings → General → Software Update, install any available update.



6. Check Wi-Fi Assist

Go to Settings → Cellular → Wi-Fi Assist, turn it off and test again.





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⚙️ Advanced Fixes (if still no Wi-Fi signal)

1. Check for Overheating

iPhones sometimes disable Wi-Fi temporarily when they overheat.

Let it cool down, then test again.



2. Check Antenna Flex Cable

The Wi-Fi antenna or upper flex cable may be loose or damaged.

This is common after a drop or water damage.


🔩 Parts to inspect (for technicians):

Wi-Fi antenna near top rear camera area

Logic board connector (J5700) for antenna

Shield grounding points



3. Use External Wi-Fi Dongle (Test)

Connect via Lightning to USB adapter + external Wi-Fi dongle (just to test network connection).



4. Logic Board Rework (For Technicians Only)

If antenna is fine, problem might be in Wi-Fi IC (Murata chip) on the motherboard.

Needs reballing or replacement — use hot air station and microscope.

Common IC: Murata 339S00551 (for iPhone XS Max)





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🧰 Repair Solution Summary

Problem Solution

No Wi-Fi option (grayed out) Reheat or replace Wi-Fi IC
Weak Wi-Fi signal Replace Wi-Fi antenna flex cable
Wi-Fi disconnecting often Clean board and re-seat antenna connector
No Wi-Fi after water damage Clean board with isopropyl alcohol, check corrosion near antenna/IC