Samsung Galaxy J2 Core Tips and Tricks

Android 8 (Oreo)
Phone: Samsung Galaxy J2 Core
Factory OS: Android 8 (Oreo)

Have you updated your Operating System?
Then view tips for the most recent OS version(s): Android 9 (Pie)
Or view tips for all Android versions

If you are browsing a website and want to see the HTML source code behind the page, then Android doesn’t offer you the ability to do this by default.

There is however a handy App called View Web Source which can be installed. Whenever you want to view the HTML of a web page, you just press the Menu – Share – View Web Source.

You can then browse the code or copy the content into the clipboard.

When entering text into Apps such as your Messaging App, Facebook App and so on, you can tap on the words to start selecting text. Normally, you would then drag the left and right sliders to select the word, or words you want to highlight.

If you double tap on a word however, it will quickly select that word. Very handy for quickly copying and one words, name or place.

The most recent version of Android now comes with a built in Flashlight / Torch App.

To find this, simply pull down to see your notifications. Then on the top bar (where you see your settings for WiFi, Bluetooth etc.), scroll across until you see Torch.

Android has improved the facial unlock feature by creating a setting whereby you must blink when unlocking your phone. This prevents fraudsters using a photo of yourself and holding it up to the phone.

To activate this feature go to Settings – Personal – Lock screen and security – Screen lock type – Face unlock. Then setup your facial unlocking.

Then once that is done, go to Face unlock again and tick Presence check.

This may not be available on all devices.

Here are the top 5 tips to make your phone run faster:

1) Use only essential widgets on your homescreen – each widget consumes memory and processing power which can slow your down your phone.

2) Uninstall apps that you don’t use – after awhile your phone can get cluttered as some Apps are designed to always run in the background. If you rarely use an App, then uninstall it to free up memory and CPU resource.

3) Install Apps to your phone memory – if you have an SDCard, always install Apps to the phone memory, which can be accessed faster. If you have Apps on the SDCard, then move them back to the phone memory with an App called Move2SD available from the Play Market.

4) Use Static rather than Live wallpapers – Live wallpapers consume processing power and memory. Unless you really must have them, uninstall them.

5) Kill tasks occasionally – Some Apps will run in the background indefinitely unless you kill them. Most of them won’t cause a problem, but it pays to check your running tasks from time to time. Hold down your Home key and check the Task Manager.

One last thing: Don’t use Task Killers. Android manages tasks very well and Task Killers just make your phone unstable and can slow it down further.

Warning: This will remove ALL data on the phone (but not the MicroSD card).

To perform a hard reset, or factory reset, then there are a number of methods to try:

1) Go to Settings – Personal – Backup and reset – Factory data reset – Reset device. It may ask for a password. Then select Erase everything.

If the phone is totally unresponsive, even after a reboot, then try the following methods.

2) While the phone is turned off, press and hold the Volume Up and Volume Down buttons together. Then, while holding these, press and release the Power button (keep holding the volume buttons). The phone should turn on and a menu will appear. Press the Volume down button to navigate to the Recovery option. Press the Volume Up to select (if that doesn’t work, use the Power button to select). A yellow triangle and an Android logo will appear. Press the Volume Down and Volume Up button together and a recovery menu should appear. Use the Volume buttons to move to the Wipe data/Factory reset option and then press Power to select. Again, use the Volume Down key to choose Yes and press the Power button again to select.

3) While the phone is turned off, press and hold the Volume Down button. Then, while holding, press and release the Power button. A menu should appear. Use the Volume down key to go to Clear Storage. Use the Power button to select the option. Then when asked to confirm, press Volume Up for Yes.

4) While the phone is off, press and hold down Volume Up + Home + Power buttons at the same time. Then release the buttons when you see the Logo. Use the Volume Down button to go down and the Home or Power key to select. Choose the Wipe data/Factory reset option. Then Select Yes to delete all user data. Then choose to reboot the phone.

5) A final method is to enter the code into your phone’s dialler: *2767*3855# This method will not give you an option to reverse the process, so be careful! This method will only work if you can boot into your phone.

There are a number of solutions to this error. Go through the following steps:

Go to Settings – Applications – Application manager. Then swipe right to left to go to All (along the top). Then find the App called Media Storage. Click on that and select Force Close. Then select Clear Data. (warning: this will delete the cache for your media player so you may lose things such as recently played, most played etc. But you will not lose your music).

Next, go back to list of Apps and find Music Player. Again, press Force Close and then Clear Data.

Once that’s done, go to the Play Store and download an App called Re Scan Media and run it. Wait 5 minutes for the device to re-scan your media.

If you still cannot play your music, then try turning your phone off and removing your SDCard / memory card (if you have one). Then turn the phone on without the card. Then turn it off again and reinsert the card. Finally turn it on again with the card back in.

If you still can’t play music, then some users have said that there may be a conflict with the Twitter App. Try uninstalling this and see if the error persists.

You can also try downloading some new media player from Play Store and try running media on this new player.

Your phone comes with a handy widget which lets you kill all running tasks. This is great if you want to quickly free up some memory.

To use the widget, press and hold for 2 seconds on a blank part of any homescreen. Then find the Active Apps Manager widget and install it.

Once that is done, press the widget and it will show you all currently running Apps. Press End all to close all running Apps.

At the bottom of each homescreen is your favourites tray, which consists of 5 icons. You can customise it by adding icons to the tray. If it’s full however, you will first need to remove some.

To remove an icon, simply press and hold an icon. Then drag it to your desktop.

Then to add a new one, simply drag an icon from your homescreen to the favourites tray.?

If you see an insufficient storage available error, or find that you’re running low on your phone memory (not to be confused with your SD Card memory), then there are a number of ways to fix this.

This error can be very frustrating as it often means you cannot install new Apps, and some Apps may not even function properly because of this. We hope this guide is as comprehensive as possible, but if you find other methods, then please suggest them in the comments below.

The first step is to determine exactly what is eating up your phone’s storage memory. To do this pull down your notifications menu and select Settings and find Storage. It may take a while to calculate so be patient. From here you can see whether it is your Applications, Pictures, Audio or otherwise, that is causing the problem. Obviously, if it is photos or music, then the first step is to remove some of these (ensuring you do actually want them deleted of course!).

If it is your Apps taking up space, then you have a few options, as follows:

Uninstall Apps – Go to Settings – Applications – Application Manager and swipe to the ALL tab at the top. Then look at the top of the screen which shows how much free space you have. Often you will have very little Free memory, which is the cause of the error. From here, press your Menu button and select Sort by size. This will show you which Apps take up the most space and which will make the most impact by removing. Obviously don’t delete things like Gallery (which will remove your photos!), Internet (which is your browser), key Google Apps and so on. However if you have Apps you don’t use anymore, then uninstall them to free up space.

Clear App Cache (with an App) – For this method, you will need to download an App called Clear App Cache. However, this will only work if you can uninstalled enough Apps to free up enough space to install the App itself. Once installed however you can quickly clear the cache of all of your Apps, which should free up some space.

Create Cloud Storage Backup – You can also select to create back-up in Google drive. For that Go to Settings – Backup & Reset and turn Back up data ?ON? and add your back-up account (Preferably the same account from which you signed in on Play Store). Then open Google Account icon and from there you can select folders for which you want to create back-up, you can also set frequency of creating back-up e.g. daily, monthly or weekly etc. Now you can delete data from folders for which you have opted to create back, but before that please make sure that back up has been created. You can access these files by signing in to Google drive using you Gmail email and Password.

Clear App Cache (manually) – Apps such as Gallery, can sometimes generate a large cache (image thumbnails in this case) which can be cleared to free up memory. First, go to Settings – Applications – Application Manager. Then swipe from right to left until you’re on the ALL screen. Then press the Menu key and Sort by size. Then choose the largest App by pressing on it. Then select Clear Cache. Do this until you’ve cleared as much space as you can. ?

Dump your log files – This will only work on some devices, however it doesn’t cause any data loss. It simply cleans up your App log files. Go to your phone dialler App and press: *#9900# ? Then Select delete dumpstate/ logcat and hit OK.

Move Apps to SD Card (if you have one) – Settings – Applications – Application Manager. Flick from right to left until you get to SD Card. Then simply tick which Apps you’d like to move from Phone memory to SD Card memory.

Clear Browser Thumbnails – This one seems to be a bug in some versions of Android and/or some phones, but is a very quick and effective fix. Simply open your stock Android Browser, which is usually found by opening the Internet App. Then at the top right check if you have multiple tabs open. If you do, then swipe them off the screen one by one until you have none left. This can clear up hundreds of cached thumbnails which never clear unless this process is carried out. It has been known to clear several gigabytes of space for users that don’t close their tabs often. ?

Check folder/file sizes – The last method is great and involves installing an App called DiskUsage from the Play store. Once you install this it will show you which folders are the largest. You can then drill down to find out exactly what is consuming your precious space before deciding to remove the files or folders. You can also integrate the App with File Explorer Apps to easily manage your files. When it comes to removing files and folders it’s sometimes easier to do that by plugging your device into a PC and browsing the folders that way.