How To Solutions for Samsung Galaxy S4 Wi-Fi or Mobile Data Connectivity Problems

Hi Guys! Due to many requests for troubleshooting instructions on how to fix connectivity issues for S4s, we decided to come up with this new series. Join us today as some of our fellow Android users share their connection issues with us. Hopefully, our solutions for Samsung Galaxy S4 Wi-Fi or mobile data connectivity problems in this edition can effectively address all of them here.

It must be remembered though that causes of connectivity problems in a Samsung Galaxy S4 may either have a firmware or hardware side. To set proper expectations, we don’t provide hardware replacement and DIY (do-it-yourself) tips and solutions other than recommend for a repair or replacement.
For software-caused problems, booting the phone in Safe Mode, deleting the cache partition, and doing a factory reset are indispensable. Here are the steps on how to do them if you are yet to try any of them.


Booting the phone in Safe mode

• Press and hold the Power button.

• Once the Samsung Galaxy S4 logo appears on the screen (assuming the phone responds to Power key press), release the Power button.

• As soon as you release the Power button, press and hold the Volume Down key.

• Continue holding the Volume Down key until the phone has completed the reboot process.

• If you can read ‘Safe Mode‘ at the bottom left corner of the screen, release the Volume Down key. Otherwise, repeat the process until you can boot the phone to Safe Mode.

Deleting Galaxy S4 cache partition

• Turn the phone off completely.

• Press and hold the

• Volume Up, Home and Power buttons.

• Release the Power button when the phone vibrates but continue holding on to the Volume Up and Home buttons.

• When the Android System Recovery screen appears, release both the Home and Volume Up buttons.

• Using the Volume Down key, highlight ‘wipe cache partition.’

• Press the Power button to select the option.
The phone will automatically restart once cache data are wiped out.

Performing a Factory reset

• Turn the phone off completely.

• Press and hold the Volume Up, Home and Power buttons.

• Release the Power button when the phone vibrates but continue holding on to the Volume Up and Home buttons.

• When the Android System Recovery screen appears, release both the Home and Volume Up buttons.

• Using the Volume Down key, highlight wipe data / factory reset.

• Press the Power button to select it.

• Using the Volume Down button again, highlight delete all user data.

• Press the Power key to select it.
Once the reset is complete, choose Reboot system now.


• Press the Power button to restart the phone.


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