Samsung Galaxy J2 Core Tips and Tricks

Looking for a replacement battery for your Samsung Galaxy J2 Core? We explain the available options and list the best battery choices for your device.

IMPORTANT – We take no responsibility for batteries purchased which you cannot use in your phone. Please ensure the following:
1) Check that your phone does actually have a removable battery
2) Check product descriptions before you buy to ensure compatibility with your phone

Short of time? Jump straight to batteries

Battery types
When choosing a battery there are three main types:

1) Replacement Batteries (Genuine / OEM) – OEM stands for Original Equipment Manufacturer and is the battery that the manufacturer has specifically produced for your device. This is normally the best option in terms of quality, time between charges and overall battery lifetime, but these batteries can be a little more expensive, so it depends on your priorities.

2) Replacement Batteries (Non-OEM / Generic) – Another cheaper option is generic or non-OEM batteries which are often mass produced in order to reduce their price. They can also provide longer battery life by having a higher mAh (see information below), so these can be a good alternative to OEM batteries if you want to save money. The quality can vary however, so we recommend that you read the reviews before buying. Another problem with generics is that they may make your device run hot and they can also void your warranty if your phone develops a fault. In general we would always recommend you buy a Genuine/OEM battery if you can afford to do so.

3) External Batteries– These are ideal if you’re going to be away from mains power for a period of time, such as camping, festivals and so on. The idea is that you charge the external battery pack (from the mains) and then charge the phone off that. Often external batteries will only last for one or two full charges, however very large packs (with a high mAh rating) are available if you’re going to be away for a longer time.

Understanding mAh
Before you buy, you should also check the mAh rating. This stands for milliamps delivered per hour rating and essentially tells you how long the battery will last before it needs recharging. A high end phone with a large screen may have a battery above 2500 mAh, whereas a mid-range model (with a smaller screen and less bulk), may only use a 1800 mAh battery. As mentioned above, sometimes generic batteries can have a higher rating than the genuine battery. For example, if your phone comes with a 2200 mAh battery, you can buy a 2400 mAh generic battery which should mean it will last longer between charges. As above, be careful with generics however.

Click to choose your battery
 

Checking Available RAM and CPU utilization on your Samsung Galaxy J2 Core is very helpful if you are thinking about removing more Apps.

Looking at which Apps drain your RAM, CPU time, and battery will help you decide which of them should be removed from your phone.

To do this, just follow the simple steps below:

1. Go to your phone settings. You can do this by swiping down the home screen to reveal the notification bar. From there, tap on the gear icon to open Settings.
2. Look for Device Maintenance → Memory
3. Alternately, you can also tap on “Data Usage,” then scroll down to see which apps are taking up CPU power.
4. You may also look for “Smart Manager.” You will see the status of your RAM and Storage in this area. If you tap RAM, you will see a list of apps that are taking up much of your RAM.
5. For Huawei users, you can look for “Storage” under Settings.

All methods from 2 to 4 can be accessed on the Phone Settings alone. There are certain variations, depending on your phone or unit.

This section should also show what is taking up valuable CPU time. Useful if you think some Apps are draining your battery.

If you want to install Apps outside of the Play Store (called sideloading), then go to Settings – Personal – Lock screen and security and select Unknown sources.

This setting will allow you to download Apps onto your device that would normally be blocked in the Play store.

Note: use at your own risk.

WARNING: Making your volume or music louder can damage your hearing.

Most phones have their volumes limited by local laws to protect your hearing. There is a way to boost your volume however.

Go to the Play Store and download an App called Volume Booster or Volume+ FREE or Ultimate Volume Booster

You may need to Root your phone for this App to work, but read the instructions in the App’s description.

Here’s how to pair your device with another Bluetooth device.

First you will need to turn Bluetooth on. To do this, drag your finger from the top of the screen down, to show your notifications menu. Then press Bluetooth so the icon is green.

Then press the Scan button and your device will start to scan for pairable devices.

Choose the desired device and press Accept. You may be asked to enter a PIN or Password.

A great new feature is dual shot which lets you take a picture of someone else with the rear camera, while simultaneously taking a picture of yourself with the front facing camera. The problem is this feature isn’t obvious to find as it isn’t included in the list of camera Modes.

To find it open your Camera App and you will see three icons in the top right corner. Dual shot is the middle icon of these. Press that and you both cameras will activate allowing you to shoot away.

This may not me available on all Models

If you find that a particular App is sending you too many notifications, there is a quick way to disable these.

When you receive the notification, pull down the notification screen. Then long press on the notification, then Go to Settings/More Settings, from here you can turn notifications ON or OFF for that particular App.

If you have forgotten your custom unlock pattern, then don’t panic.

After 5 unsuccessful tries a button should appear saying ‘Forgot pattern’. Press this and you will be asked to enter your Gmail username/password.

The phone will then ask for a new unlock pattern. If you don’t have a Gmail account, then you might have to either call your carrier or factory reset your phone.

There is a hidden Android Easter egg on the phone that Google has built into your device.

Go to Settings. Then scroll down to About device. Then tap on the Android version option 5 times.

Once you see something on the screen, you can then rub the screen with your finger to produce another surprise. If rubbing doesn’t work then try tapping with your finger. A combination of the above should work.

By the way don’t expect to see an actual Easter Egg. That is just the name given to things hidden inside software or operating systems.

By default, your phone will recognise swear words, but insert x’s instead of the word. To change this, go to Settings – System – Language and input – Virtual Keyboard- Google Voice Typing

Then you may need to select your voice input system. Then toggle the Block offensive words option.