My Samsung S4 Mobile WLAN won t turn on What s going on?

Dear Samsung users: According to your description, if your phone can't turn on the wifi switch, it is recommended that you:1

3.If it is not solved, please back up the data in your device (**book, SMS information, multi**data, etc.), and restore it to factory settings. If the problem persists, please bring the purchase invoice, repair card and machine to the Samsung service center for testing, and professional engineers will solve it for you.

Samsung knows that we will provide you with high-quality solutions and answer your questions attentively, and hope to get your satisfactory evaluation.

Hello: According to the situation you described, it is recommended that you try the following:

1.Shut down and restart your phone.

3.Back up your data, try to reset your phone.

If the problem persists after the above operations, please bring your mobile phone, purchase invoice, and repair card to the Samsung service center for professional testing of your mobile phone. For more information about your local service center, please click on the following link:

Is it a corporate WLAN? If it's the company, it's best to ask the network manager, maybe he made the setup.

If it's wifi at home, then start the route and try it.

Samsung S4 won't turn on the wireless network is due to a malfunction of the phone's network settings, which can be solved by "Reset Network Settings".

Here's how:

1. Open "Settings".

2. Scroll down and click "General Management".

3. Click "Reset".

4. Find "Reset Network Settings" and tap it.

5. In Reset Network Settings, click "Restore Default Settings".

6. Enter the numeric password to pass the verification.

7. Click "Reset".

8. The prompt "Network settings have been reset" indicates that the network settings have been successfully reset.

Samsung S4 won't turn on the wireless network is due to a malfunction of the phone's network settings, which can be solved by "Reset Network Settings".

Here's how:

1. Open "Settings".

2. Scroll down and click "General Management".

3. Click "Reset".

4. Find "Reset Network Settings" and tap it.

5. In Reset Network Settings, click "Restore Default Settings".

6. Enter the numeric password to pass the verification.

7. Click "Reset".

8. The prompt "Network settings have been reset" indicates that the network settings have been successfully reset.

We recommend that you do the following:

1.Turn your phone and wireless devices on and off again.

2.It is recommended to forget the network to reconnect, operation: Settings - WLAN settings - click and hold the name of the network to be deleted - do not let go - forget to delete the network.

3.An attempt was made to replace the static IP address.

4.Whether it is too far away from the wireless router and affects the received signal.

5.If possible, change to another router or try to connect wirelessly6After updating the system version, test whether there is any improvement.

7.Back up your phone data (**book, SMS, multi** files, etc.), and restore factory settings8If the problem persists, it is recommended to send the S4 phone to the nearest Samsung service center for testing.

It's not that complicated at all!

My S4 mobile phone has also recently appeared WLAN and Bluetooth can't be turned on.,Repeated restarts are occasionally useful.,I just found a method in the post bar:"Open Settings --More --Application Manager--Find Samsung Push Service in all and press Stop and then press Force Close, and finally restart it"--It works!!

In order to make everyone less troubled by this "failure", immediately put the method over... Special thanks to yxy19951029!!

In fact, the WLAN module is in poor contact with the WLAN antenna, or the splice is oxidized, scraped off or fiddled. See.

Is your situation that you clicked on it and turned it off again? If so, it's 80 percent the fault with the phone's motherboard. There may be a problem with the system, try to upgrade.

Settings - Application Manager - All - Find the wifi update and turn it off to enable.

Turn on airplane mode, turn off Wi-Fi again.

Friend. You go to the settings to connect. It should be ok.

If the account password is good, the network instability cannot be ruled out.

Common problem, generally the wifi module is soldered, I also encountered it, yesterday I used a heat gun 350 degrees, add some flux paste, just add welding, use 2 days and no more problems.

If it's useless to reboot,WiFiCan't turn on is mostly a problem of ROM optimization,Most of this problem appears in playing some optimized ROMs with bugs,Or directly brush another optimization after brushing an optimized version of ROMs,There are also a few Android files damaged by the phone itself,I only know that if the hardware is okay, you can solve it by reflashing the official ROM,It's good immediately after brushing,But please remember to back up important information。

Is it the reason why the battery saving mode is turned on? Or if you have a 360 security guard or something like that, you can automatically set the power-saving mode.

There is a problem with the mobile phone system, and so is mine, the quality of Samsung phones is too poor, and I don't use it for a long time.

Hello dear Samsung users:

1.Samsung S4 won't turn on WLAN switch, it may be due to system issues or damaged WLAN module.

2.It is recommended to try to troubleshoot the system problem first, back up your phone data first, and then go to Settings to try to factory reset your phone.

3.After the phone is factory reset, the phone returns to its original state, and then the user tries to turn on the wireless network.

4.If Wi-Fi is still not turned on normally, it is recommended that you send your phone to the brand's customer service for testing and repair.