iPhone Wi-Fi and Bluetooth Not Working: 12 Reasons and How to Fix Them

Are you faced with a situation where iPhone stopped working at the same time Wi-Fi And Bluetooth? This is a common problem that can occur on older models (iPhone 6/7/8), and on new ones (iPhone 13/14/15 Pro). Most often, the failure occurs after an update. iOS, dropping the device, or exposure to moisture. In 80% of cases, the malfunction is software-related, but sometimes hardware components are to blame—for example, a damaged chip. WLAN/BT or antenna module.

In this article we will look at all possible reasons, why on iPhone Wi-Fi and Bluetooth aren't working—from simple settings to serious breakdowns. You'll learn how to diagnose the problem yourself, what steps to try first, and when it's best to contact a service center. We've also compiled compatibility table models iPhone with versions iOS, where such failures most often occur.

If you urgently need to restore your internet connection or pairing with your headphones, go straight to quick solutions sectionFor a more in-depth diagnosis, read the full article.

⚡ Quick ways to restore Wi-Fi and Bluetooth (if the problem is software-related)

Before you carry iPhone If you're in for repairs, try these methods. They help in 60-70% of cases when the problem is caused by a temporary glitch. iOS or a settings conflict.

• 🔄 Restarting the device. Press and hold the button Nutrition + any of the volume buttons (on iPhone 8 and newer) or simply Nutrition (on iPhone 7 and older), then swipe the slider Turn offAfter 30 seconds, turn the phone on again.
• 📶 Reset network settingsGo to . Settings → General → Transfer or reset iPhone → Reset → Reset Network Settings. This will delete all saved Wi-Fi passwords and paired Bluetooth devices!
• ⚙️ Disabling modem modeIf you have the function activated Modem mode (V Settings → Cellular), try turning it off - sometimes it blocks Wi-Fi.
• 🔧 iOS updateGo to . Settings → General → Software Update and install the latest version of the system. In some builds (for example, iOS 16.4–16.6) there were bugs with wireless modules.

If after these actions Wi-Fi or Bluetooth If they work, the problem was temporary. If not, read on: the cause is likely deeper.

🔍 Diagnostics: How to determine if the problem is hardware or software

Before disassembling iPhone or take it to a service center, you need to figure out what exactly is wrong. Here key features, which will help differentiate the breakdown:

Also pay attention to indicators in the status bar:

• 📱 If the icon Wi-Fi gray (inactive), but when you click on it, a list of networks appears - the problem is connecting to a specific access point.
• 🔵 If the icon Bluetooth crossed out or missing - the module is disabled at the system level or physically damaged.
• ⚠️ If an exclamation mark appears next to the indicators, this indicates an authentication error (incorrect password) or an IP conflict.

If you suspect hardware failure, but you're not sure - try connecting iPhone Try connecting it to a different router or pairing it with other Bluetooth devices (such as a speaker or car). If the problem persists, the hardware is most likely to blame.

🛠️ Software reasons: from iOS bugs to settings conflicts

In 40–50% of cases Wi-Fi And Bluetooth refuse due to malfunctions iOSLet's look at the most common scenarios and how to resolve them.

1. Conflict after iOS update

Some firmware versions are known to have bugs with wireless modules. For example:

• iOS 15.4–15.6: problems connecting to 5 GHz Wi-Fi.
• iOS 16.0–16.1: spontaneous disconnection of Bluetooth devices.
• iOS 17.0–17.2: Freezing when searching for Wi-Fi networks.

Solution:

1. Update to the latest version iOS (if available).
2. If the problem appeared after an update, try rolling back to the previous version (if Apple still signs it). To do this, you'll need a computer with iTunes (Windows) or Finder (Mac).

2. Service failure com.apple.wifid

This is a system process responsible for Wi-Fi management. If it freezes, the connection is lost. To restart it:

1. Connect iPhone to the computer.
2. Open Console (on Mac) or iTunes (on Windows).
3. Run the command (requires jailbreak or special utilities like iMazing):

   killall -9 com.apple.wifid

3. Incorrect network settings

Sometimes the problem lies in:

• 🔒 Incorrect DNSTry manually entering Google's DNS (8.8.8.8) or Cloudflare (1.1.1.1) in the Wi-Fi settings.
• 🔄 IP conflictEnable issuance in your router. DHCP or appoint iPhone static IP manually.
• 🛡️ MAC address blockingCheck your router settings to see if yours is blocked. iPhone.

How to check iPhone MAC address?

Open Settings → Wi-Fi, tap on the connected network → look at the line Wi-Fi address (this is MAC).

🔧 Hardware reasons: from antennas to the WLAN/BT chip

If software methods do not help, the problem is most likely in ironLet's look at typical breakdowns and their symptoms.

1. Damage to the antenna module

IN iPhone responsible for Wi-Fi and Bluetooth separate antennas, but they are connected to the same chip. Signs of damage:

• 📉 The Wi-Fi/Bluetooth signal disappears when the phone is in a certain position (for example, if you hold it in your hand).
• 🔍 The network settings show many "foreign" access points with low signal strength.
• 🛠️ Artifacts appear on the screen when connected to Wi-Fi (rare, but it happens on iPhone X and older).

Solution: Replace the antenna module. iPhone 11 and newer antennas are integrated into the metal housing, so repairs are more expensive.

2. Chip malfunction WLAN/BT

This is the microchip that controls both modules. If it fails, Wi-Fi and Bluetooth stop working at the same timeReasons:

• 💧 Corrosion after exposure to moisture (even if iPhone (It didn't sink, it was just in a damp environment).
• ⚡ Overheating or voltage surge (for example, after connecting to a faulty charger).
• 🛠️ Unsuccessful soldering during previous repair.

Diagnostics:

1. Connect iPhone to the computer and open iTunes (or Finder on Mac).
2. Check if the device is detected. If not, the problem may be with the chip.
3. Use diagnostic utilities like 3uTools to check the status of modules.

3. Damage after a fall or impact

Even if there are no visible cracks on the case, internal components may have come loose from the board. Typical symptoms include:

• 📱 Wi-Fi only works near the router (low antenna sensitivity).
• 🔵 Bluetooth connects, but the sound is choppy or distorted.
• 🔌 Charging only works in a certain position of the cable.

Solution: Disassemble and check the contacts. This often helps. resoldering antenna cables or chip.

📱 Repair features for different iPhone models

Design iPhone The system has changed with each generation, so repair approaches vary. Below are the key details for popular models.

On iPhone 12 and newer Apple uses modular design chip WLAN/BT, which simplifies its replacement. However, iPhone 14 Pro And 15 Pro appeared blocking of non-original spare parts - After replacing the chip, it may be necessary to "link" it via Apple software.

🚨 When should you contact a service center?

Not all problems can be fixed on your own. Here signals, that it's time to carry iPhone to the professionals:

• 🔧 You've tried all software methods (reset, update, reboot), but Wi-Fi/Bluetooth isn't working.
• 💧 The phone was dropped in water or was in a damp environment (even if there are no external signs of corrosion).
• ⚡ Appear on the screen artifacts (stripes, flickering) when trying to turn on Wi-Fi.
• 🛠️ The phone had already been repaired, and after that, problems with the wireless modules began.
• 📡 There is no section in the settings Wi-Fi or Bluetooth (gray, inactive).

When choosing a service center, pay attention to:

• 🔍 Availability diagnostic equipment (For example, DC Power Supply to check the chip consumption).
• 🛡️ Repair warranty (minimum 3 months).
• 💰 Cost of spare parts (original parts are more expensive, but more reliable).

❓ FAQ: Frequently asked questions about Wi-Fi and Bluetooth not working on iPhone

Is it possible to replace the Wi-Fi/Bluetooth chip myself?

Theoretically yes, but in practice it is extremely difficult. iPhone 6/7/8 chip WLAN/BT You can re-solder it at home if you have a soldering station and experience. iPhone X and newer require professional equipment (eg BGA processing) and software binding of the chip. Without experience, you risk damaging the board.

Why did Bluetooth stop working after replacing the battery?

This is a typical problem on iPhone 7/8/XWhen replacing the battery, inexperienced technicians may damage the antenna cables or chip contacts. WLAN/BTAlso, sometimes the connector comes off. NFC/Bluetooth, which is located next to the battery. Solution: disassemble the phone and check the integrity of the cables.

Wi-Fi 6 (5 GHz) isn't working on my iPhone 13 Pro. What should I do?

This problem is often associated with router incompatibility or a settings glitch. Try:

1. Update the router firmware.
2. In the Wi-Fi settings on iPhone disable the option Private Wi-Fi address (in network properties).
3. Reset network settings on your phone.

If that doesn't help, the problem might be with the chip. WLAN, which does not support Wi-Fi 6 due to damage.

Can jailbreak cause Wi-Fi/Bluetooth issues?

Yes, especially if you installed tweaks that change the operation of network modules (for example, WiFiBooster or BluetoothAutoConnect). Try:

1. Remove recently installed tweaks via Cydia or Sileo.
2. Execute ldrestart (soft system restart).
3. If the problem persists, do a full reset via Settings → General → Reset → Erase All Content and Settings.

Apple refuses to repair my iPhone under warranty, citing "mechanical damage." What should I do?

If you are sure that the phone has not been dropped or exposed to moisture, request diagnostic report At the service center. It should indicate the exact damage found. Failure to provide a report is a violation. You can:

• Contact another official service Apple.
• Write a complaint to support Apple through the website.
• If the warranty is valid, but they refuse to perform repairs, demand a replacement device.