Set a mobile data limit on the Galaxy S3, S4 or S5

Data limits are the bane of many people's existence. They're a necessary evil but always seem to run out just when you need them and then you get hit with crazy excess charges or 'shaping' that cuts your data flow to a trickle. Galaxy devices make it nice and easy for you to set a mobile data limit to avoid running out of data entirely or bringing on some bill shock at the end of the month.

Holding the reins when it comes to data usage is essential in these LTE/download booster times.

How to connect to Wi-Fi on Samsung Galaxy S4

To connect to Wi-Fi on the Samsung Galaxy S4 simply follow these steps:

1. Touch Apps (as shown in image)
2. Scroll down & touch Settings
3. Check to see if Wi-Fi is on (if not, slide to on)

Install Android 4.3 firmware on Samsung Galaxy S4: final build version

If you want some more information about this firmware build version, check out our companion article to this forum entry. If you just want the install tutorial, keep reading. Please share any finds or questions you have in this forum too.

I'll assume you already know the risks involved in flashing firmware to your device and are happy to proceed. As always, both myself and AndroidPIT assume no responsibility for any damage that may occur to your device.

Install Android 4.3 on Galaxy S4 tutorial [Update: Official firmware]

 

An OFFICIAL final build version of the S4 firmware has just been released in Germany via OTA and Samsung Kies for the Galaxy S4 LTE version I9505. Considering Samsung's staged rollouts, you could be waiting a while to get it on your device. Not if you follow out tutorial below though!This is the OFFICIAL final build for the S4, but this firmware is only for the I9505 model, not the I9500.

Samsung Galaxy S4 Hard Reset

Performing a Hard Reset on your Galaxy S4
Warning: it is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media . Take out SIM card before full reset. This shouldn't delete the data on your external SD card, but as a precaution, remove as well.

Force reset Reset the device: Press and hold for more than 7 seconds to reset the device if it has fatal errors or hang-ups or freezes.

Unlock Galaxy S4 using hard reset

SG S4 hard reset or reset Galaxy S4: PRESS AND HOLD VOLUME UP + Home Button + Power

or simply Volume UP + POWER ON

How To Factory Reset your Samsung Galaxy S4 (Easy Way)

The easiest way to perform a Factory Reset on your Samsung Galaxy S4 is from within the menu settings:
Settings > Accounts > Back Up and Reset > Factory Data Reset > Reset Device > Delete All/Erase Everything.
Please remember to back up any data you want to keep first! In the Factory reset screen you also have the option to Backup My Data and Auto Restore. These are good options to tick before you Factory Reset if you're not too sure how to do this on your own.

How to clear the system cache for the Samsung Galaxy S4

If you have problems with your Samsung Galaxy S4 and that the smartphone isn't working properly, a good solution to this is to wipe the system cache of the phone. You don't even need to do a hard reset. In fact, doing a system cache will NOT delete any of your personal info, but only the background and application cache. Cache is stored data on the phone which allows apps to load quicker, it's like the data is on standby until you need it again. Wiping it simply means that the app will have to reload the data.