The internet can be called a castle of magic which can be accessed by the touch of a magic wand, in this case using connections such as the Wi-Fi. The internet has become a basic necessity and today you can reach the corners of the world at the touch of a button or with a simple swipe. What's more is the way the internet has become a global teacher with literally every piece of information loaded onto it and can be accessed with the proper connections. However, nothing can be more annoying than an unfaithful Wi-Fi connection, considering using Wi-Fi comes as the best alternative in comparison to other connections such as use of data charges. Let's look at a few methods that can help you out. 
  1. Power Cycle Your Router/Modem

Actually, almost everybody's first instinct whenever any electric device starts being a pain in the neck is to switch it off and then on. This can be done for your modem or router too and actually works better in the recently modified ones which are combined into one convenient tool. A soft or hard reset can be done. However, this process involves reconfiguring the devices and making them seem as if they were brand new. To avoid this tedious process for a start, a simple trick is just plugging off the devices for about 30 seconds from their power source before plugging them back in. This technique is known as power cycling. 
  1. Turn off the Wi-FI connection then turn it on

Just like the trick in method one, turning off your Wi-Fi connection then turning it back on can simply solve the query. This can be done through the settings on your phone or other Android device. The connection is normally reset by the switch off, which helps clear out the obstacle. 
  1. A change of programmed wireless networks could be needed

This one only applies to connections that were previously being used. Normally, your Android device remembers settings that are within networks that you have used. The default settings can spring up problems whenever there is a software update due to modification of something that you wouldn't want changed such as settings . 
  1. Disable the WI-Fi 'Sleep settings' on your Android device

In a bid to help save on your battery life, the manufacturers of your Android device may have modified the settings on it in such a way that the Wi-Fi connection is turned off whenever you switch off your screen. However, this can be a nuisance to those who prefer constantly running Wi-Fi. This can be changed in the Wi-Fi connnection settings of your device. 
  1. Turn off or restart your Android device

Even your service providers will always tell you this as the first option. Restarting your device helps in closing any apps running in the background as well as clearing out the RAM. One thing that most people do not notice is the apps that they leave running in the background occasionally, which can cause battery drains, slowness and strange behaviour from your device. Powering down your device and starting it again goes a long way in clearing those Wi-Fi connection issues. 
  1. Get the 'Wi-Fi Fixer' from Google Play Store

When every trick above has proved futile, it's time you let something else get inside your device to clear the problem. There are several apps available on Google Play that can deal with that. One of the best is the 'Wi-Fi Fixer' app. It is free and one of its most unique characteristics is that it comes with no advertisements.

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What's my model number?

There are several ways to locate your model number:

Option 1
On your device, go to Settings, then "About device" and scroll down to "Model number"
Option 2
Often times you can view the model number inside the device, by removing the battery
Option 3
Using Samsung's model/serial number location tool

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