Why Wi-Fi Won't Turn On on the Samsung Galaxy A50: A Complete Analysis of Causes and Solutions

You are trying to connect to the internet, but Wi-Fi on my Samsung Galaxy A50 won't turn on.Is the button grayed out, the indicator light unresponsive, or is the network simply not seeing available access points? This problem is familiar to many owners. Galaxy A50 — and it can have both simple and complex roots. In 80% of cases, software glitches are to blame, but sometimes the cause is hardware issues with the antenna or motherboard.

In this article we will look at All possible reasons for Wi-Fi disconnection on the A50, from a simple frozen module to damaged contacts after dropping the phone. You'll receive checklists for self-diagnosis, step-by-step instructions for resetting the settings, and even tips on what to do if your phone is under warranty. Finally, you'll find answers to frequently asked questions to help you avoid recurring problems.

1. Software glitches: why Wi-Fi freezes for no apparent reason

The most common reason is - temporary failure of the Wi-Fi moduleIt can occur after a firmware update, installing a new app, or even due to simple phone overheating. Symptoms: the Wi-Fi button doesn't respond, the Wi-Fi icon in the settings is grayed out, or the network turns on but then immediately disconnects.

What's happening at the technical level? Module wlan in the system Android may "freeze" due to a conflict with other services (for example, Bluetooth or Location). Sometimes the system cache is to blame, accumulating errors after running for a long time without rebooting.

• 🔄 Restart your phone — Step one. Hold down the power button, select "Restart," and wait 1-2 minutes. This resolves the issue in 30% of cases.
• 📱 Airplane modeTurn it on for 10 seconds, then turn it off. This resets all network modules, including Wi-Fi.
• 🗑️ Clearing the cacheGo to . Settings → Apps → Three dots (menu) → Show system → Wi-Fi, then click Clear Cache.

If Wi-Fi still doesn't turn on after these steps, the problem may be deeper—for example, corrupted firmware files. In this case, a factory reset will help (more on that in the next section).

⚠️ Attention: If your phone has recently been dropped or wet, don't try to force Wi-Fi on—this could further damage the antenna. First, check the physical condition of the device.

2. Resetting network settings: when it really helps

If a simple reboot doesn't help, the next step is reset network settingsThis procedure deletes all saved Wi-Fi networks, passwords, VPN settings, and data about connected Bluetooth devices. However, it often resolves issues with a frozen module.

How to reset:

1. Open Settings → General Management → Reset.
2. Select Reset network settings (do not confuse with a full reset!).
3. Confirm the action by entering the PIN code or pattern.
4. After rebooting, try turning on Wi-Fi again.

Save your Wi-Fi passwords in a notepad|Remember your VPN settings (if you use one)|Make sure you have access to mobile data|Check if important devices are connected via Bluetooth-->

If after the reset Wi-Fi works, but after a while it turns off again, the problem may be in conflict with installed applicationsFor example, some battery saving programs (like Greenify) aggressively disable network modules. Try uninstalling suspicious applications or rolling back their settings.

3. Firmware Update: Why Old Android Versions Break Wi-Fi

On Samsung Galaxy A50 A common bug is: after updating to Android 11/12 Wi-Fi stops turning on or becomes unstable. This is caused by errors in the module's drivers. Broadcom BCM4358, which is used in this model. The manufacturer usually fixes such bugs in subsequent patches, but not all users install them.

How to check and update firmware:

1. Go to Settings → Software Update.
2. Click Download and Install (if an update is available).
3. If there are no updates, but the problem persists, try manual firmware through Odin (instructions below).

If automatic update doesn't help, you can try flash the phone manually through the program OdinTo do this:

1. Download the latest firmware for Galaxy A50 (SM-A505F) from the website SamMobile.
2. Install Odin on PC and drivers Samsung USB.
3. Start your phone in mode Download Mode (pinch) Volume Down + Power).
4. Connect to PC and follow the instructions in Odin.

⚠️ Attention: Unprofessional firmware may lead to brick (complete inoperability) of the phone. If you are unsure, contact the service center.

4. SIM card conflict: why two networks interfere with Wi-Fi

Few people know, but Galaxy A50 (as well as on many others Samsung) Wi-Fi and mobile networks may conflict., if both are active at the same time. This is due to the specific operating features of the module. Exynos 9610, which manages all wireless connections.

Symptoms of conflict:

• Wi-Fi turns on, but immediately turns off.
• Internet speed drops to zero when SIM is active.
• In the system logs (*#9900#) errors appear WIFI_HW_ERROR.

How to check and fix:

1. Turn off mobile data: Settings → Connections → Mobile network → Mobile data (off).
2. Try turning on Wi-Fi - if it works, the problem is a conflict.
3. Solutions:
   • 📶 Turn off VoLTE in the SIM card settings.
   • 🔄 Switch the network to 3G only (instead of 4G/LTE).
   • 📱 Try using a different SIM card (sometimes the problem is with your operator).

Why is this happening?

The Exynos 9610 module in the Galaxy A50 uses a shared controller for Wi-Fi and cellular data. Under heavy load (for example, during a VoLTE call), resources are redistributed, and Wi-Fi may be disconnected. This is a hardware issue that Samsung hasn't addressed in firmware updates.

5. Hardware failures: when the hardware is to blame

If you have tried all software methods, but Wi-Fi still does not turn on, the problem is hardware failureOn . Galaxy A50 most often fail:

• 📡 Wi-Fi antenna — breaks after being dropped or exposed to moisture.
• 🔌 Contacts on the motherboard - are oxidized or released.
• 🔋 Wi-Fi power module - burns out during power surges.

How to diagnose a hardware problem:

1. External inspection: Check your phone for cracks, dents, or signs of corrosion (green coating on the contacts).
2. Test in the engineering menu: Enter #0# → select Wi-Fi TestIf the test returns an error, the problem is in the hardware.
3. Check on another phone: Bring the working one Galaxy A50 to the router - if other devices see the network, but yours doesn't, the antenna is to blame.

Repair cost:

⚠️ Attention: If your phone is under warranty, don't open it yourself! At a service center. Samsung They may refuse to provide warranty repairs if they find signs of tampering.

6. Alternative ways to connect to the Internet

While you are looking for a solution to your Wi-Fi problem, you can use alternative methods to connect to the Internet on Galaxy A50:

• 📶 Mobile Internet (4G/LTE): Turn on mobile data Settings → Connections → Mobile networkIf the speed is slow, check the APN settings with your carrier.
• 🔗 USB tethering: Connect your phone to your PC or laptop via USB and turn it on. Modem mode in the settings. This will allow you to share your phone's internet connection.
• 📡 Bluetooth tethering: If Wi-Fi isn't working, but Bluetooth is, you can share the Internet through it (though the speed will be lower).
• 🌐 Public networks: As a last resort, use open Wi-Fi in cafes or shopping centers (but be careful with security!).

If you urgently need internet on your PC and your phone's Wi-Fi isn't working, you can use reverse tethering:

1. Connect Galaxy A50 to PC via USB.
2. On your PC, turn on Internet sharing via USB (in Windows: Settings → Network & Internet → Mobile Hotspot).
3. On your phone, in the USB settings, select Transferring data via USB.

7. When to contact the service center

If you have tried all the methods in this article, but Wi-Fi is not working Samsung Galaxy A50 If it still hasn't worked, it's time to call in the professionals. Here are some signs that the problem is serious:

• 🔧 The phone was dropped into water or exposed to strong vibration.
• 🔥 Blackened or swollen elements are visible on the motherboard.
• 📵 Wi-Fi doesn't turn on even after a factory reset.
• 🔍 In the engineering menu (#0#) Wi-Fi test shows an error FAIL.

Where to repair:

• 🏢 Official Samsung service center: Warranty repairs (if the phone is under warranty). A list of centers is available on the website. Samsung Russia.
• 🔧 Unofficial workshops: Cheaper, but there's a risk of poor quality repairs. Read reviews before choosing.
• 📦 Do-it-yourself repair: Only if you're an experienced user and confident in your abilities. Replacing the Wi-Fi antenna requires a soldering iron and a set of screwdrivers.

The average cost of diagnostics at a service center is 500–1 000 ₽If the problem is in the antenna or contacts, the repair will cost 1 500–4 000 ₽In case of damage to the motherboard, the price can reach up to 8 000–12 000 ₽.

⚠️ Attention: Before visiting a service center, please back up all your data! In some cases, a full reset of the phone is required for repairs.

FAQ: Frequently asked questions about Wi-Fi on the Samsung Galaxy A50

❓ Why does Wi-Fi turn on but not connect to the network?

This may be due to:

• Incorrect network password (check the case of the characters!).
• Restrictions on the router (MAC filtering, device restrictions).
• There is a problem with the IP settings (try manually entering DNS, for example, 8.8.8.8).

Also try to "forget" the network (Settings → Wi-Fi → Tap on the network → Forget) and reconnect.

❓ Is it possible to turn on Wi-Fi through the engineering menu?

Yes, but this is a temporary solution. To do this:

1. Enter #0011# or #9900#.
2. Select Wi-Fi → Wi-Fi Test.
3. If the test is successful, but Wi-Fi still doesn't turn on, the problem is in the firmware.

Be careful not to change other settings in the engineering menu - this may cause your phone to stop working!

❓ Why did Wi-Fi disappear after the update?

This is a typical problem. Samsung Galaxy A50 when upgrading to Android 11/12The cause is incompatibility between the new drivers and the hardware. Solutions:

• Roll back to the previous version of Android (if you have a backup).
• Wait for the next patch from Samsung (usually released within 1-2 months).
• Install custom firmware (for example, LineageOS), but this will void the warranty.

❓ How do I check if my Wi-Fi antenna is working?

The most reliable way is test in the engineering menu:

1. Enter #0#.
2. Select Wi-Fi Test.
3. If the test shows FAIL or a mistake N/A - the antenna is faulty.

You can also use the app WiFi Analyzer - If it doesn’t see any networks, the problem is definitely in the antenna.

❓ What should I do if Wi-Fi works, but is very slow?

Reasons for slow Wi-Fi Galaxy A50:

• The router channel is overloaded (change the channel to 5 GHz or select a less congested one in the router settings).
• Speed ​​limitation by the provider (check your tariff).
• Background apps consuming traffic (check in Settings → Connections → Data Usage).
• Weak signal (try moving your phone closer to the router or use a repeater).

Resetting network settings (described in section 2) will also help.