Samsung Galaxy J4 Tips and Tricks

Android 8 (Oreo)
Phone: Samsung Galaxy J4
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

How to unlock: Unlocking can bring many important benefits and can save you a considerable amount of money.

We can recommend a safe, reliable and low cost phone unlocking supplier or you can read more in our comprehensive phone unlocking guide which explains what it means, why you should unlock, and the safest and cheapest place to get it done.

1) Go straight to our recommended phone unlocking provider.

or

2) Read our phone unlocking guide for more detailed information.

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.

With the recent versions of Android you can now take photos while recording video by simply pressing the screen.

This will save that particular frame to the gallery while continuing to record video.

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.?

To lock your screen while you are watching videos, simply press the power button.

This will disable the touchscreen buttons while the video is playing, but it won’t turn the screen off like the lock key normally does.

Note, this will only work on video files that you are playing that are stored on your phone. It won’t work for videos played within websites, such as YouTube videos.

If you have decided to ditch your iPhone in favour of Android, then there is a simple way to take your iTunes music, playlists and album art with you.

Simply go the Android Marketplace and download a Free App called Easy Phone Tunes. You will also need the computer version of the software, so go to http://easyphonetunes.com and download it from there. ?

Then, when that is done, turn your phone into a USB storage device (this will vary from device to device, but instructions are on the website).

Once your device is connected to your computer, open the computer version of the software and select your device from the Easy Phone Tunes list. Then follow the instructions to Sync your media.

The following is a list of commands that can be used for the Google Now service. This can be accessed by using the Google Search widget on your homescreen. Simply press the little microphone icon and say the commands below:

General
Search for
Who invented
Show me the stocks for
Author of
How old is
How tall is

Time & Date
What time is it in
When is the in
When is the sunset in
What is the time zone of
Time at home

Weather
Show me the weather
Is it going to rain tomorrow?
Do I need an umbrella?
Do I need a jacket
What is the weather in
How is the weather on going to be?

Maps / Location
Map of
Show me the nearby on map
Where is situated?
in
Navigate to in car
I am hungry (shows all nearby food points on map)
How far is from

Calculations / Conversions
How much is times
What is percent of
Square root of
… equals
What is the numerical value of Pi
Convert into
Temperature of the sun

Sports
points table
Who won the last match between and
scorecard
Schedule of games

Websites
Go to
Open
Show me
Browse to

Entertainment
Listen to
Play
YouTube
When was the first episode of
movies
Who acted in
Who is the producer of
When was released
Runtime of

Notes / Reminders
Remind me to at
Wake me up in
at
Self note to
Set alarm for

Contacts / Communication
Call
Send to via text
(shows the contact card)
Call in
Send a text to
Email to , B C C , Subject , message

Flights
Flight Status of
Has landed/departed
When will land

Other
Do a barrel roll

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.

To stop the Photo App or the Music player from indexing your files, place a blank text file called .nomedia in the folder containing your photos or music.

The best way to do this is to connect your device to a PC and then navigate to the relevant folder via your PC.

If you find yourself woken up by notifications, text messages or incoming calls, then there is a handy feature called Blocking mode.

To enable this go to Settings – Device – Sounds and notifications – Do not disturb.

From here you can set a From and To time in which to block these notifications.

You can also allow notifications through from certain contacts that you don’t mind bothering you.