Modern mobile phone designed to simplify our lives. In practice, however, difficulties can arise.
For example, some gadget users note that not all smartphones are easy to use or not as advanced as their predecessors.
Therefore, this instruction will be useful to you if you do not know how to open the lid on Samsung Galaxy A3.
After all, it becomes so unpleasant when you do not know how to open the back cover, and, as luck would have it, there is no one nearby who can tell you or help you.
But everything is not so sad, and now you will find out how in this case it is necessary to properly handle the Samsung Galaxy A3.
Difficult task for many
If you ask the majority of users the question: "How to remove the cover on the Samsung A3?", They will not be able to answer anything.
It seems that the development company decided that to perform such an action, we must contact the centers service phones.
In the centers, specialists will do it quickly and easily. After all, for this they have a set of special tools: a "spatula" (a device that disconnects the mounts) and a Phillips screwdriver.
But what if you do not have the opportunity to contact specialists or you simply do not have enough time to visit service center? There is only one way out - to independently remove the back cover from the Galaxy A3.
How it's done
It is important not to use brute force when disassembling a smartphone. Otherwise, it can lead to negative consequences: most likely, the smartphone will not perform its functions.
Also, dents, scratches or other damage may appear on the device case, interfering with its normal operation and pretty spoiling appearance.
Therefore, disassembling the Samsung A3, strictly follow the instructions below.
- Find where the speaker of your smartphone is.
- You will see a small notch (crack) above the speaker (from the end). With its help, the cover is removed.
- Do not lift the cover up abruptly, otherwise you may damage the back panel... You can just push it up with your fingernail and gently pull it away from the device. Do not worry - it will not break. Never use sharp objects!
The back cover is open!
How to open the Samsung Galaxy coverA3and GalaxyA3 mini
To open the lid, specialists, in addition to the above tools, use a specialized hair dryer to warm it up.
It is quite difficult to do such a procedure at home. After all, you have to warm up the edges around the perimeter in the smartphone.
The phone is monolithic, so it is important to warm it up at a temperature of no more than 150 degrees (use a regular hair dryer for this).
After warming up, it is enough to gently pry off the cover with a plastic sharpened card, snapping off the screen from the case. Everyone - access to the internal modules is open!
If your goal is to completely disassemble the phone, then you must carefully read the instructions for complete disassembly. It is also easy to insert the cover - follow the steps in the opposite sequence.
If you know any other ways on how to remove the cover from Samsung Galaxy A3, share them in the comments. If you have any questions - ask, I will be happy to answer everything.
Samsung has again released new versions of the A3 and A5 models - this is already becoming an annual event.
With the help of these devices, the company indicates its true intentions - to consolidate its position in the middle price segment, presenting users with smartphones with a good set of useful functions.
As with any smartphone, these two have several hidden functions worthy of your attention. Here are some of the most successful, in our opinion:
Add / Disable Game Launcher and Game Tools
Every mobile gamer knows what Game Launcher and Game Tools are for. These apps allow you to turn off notifications while playing, and you can also take a screenshot of the game or even take a video with them. You can activate or deactivate them with just a couple of clicks.
All you need to do is go to Settings, find Advanced Features and go to the Games menu. Here you will find the options you need.
Game Launcher is very easy to enable or disable Take photos with ease
On most smartphones, you can take photos by pressing the volume keys. Some people prefer a button on the screen. Samsung has tried to accommodate the personal preferences of each and every one.
You can add a virtual key for your camera, this key can be placed anywhere on the screen when the viewfinder is on. Press this button and the photo is ready.
To activate access to this function, simply go to the Camera application, and from there to Settings (the gear in the upper right corner of the screen). Scroll down the menu and find the Floating Camera Button feature. Activate it and this button will appear in the Camera app.
Reminder: you can launch the camera by double-clicking the “Camera” button, you do not need to look for the camera icon on the desktop.
The floating camera button can be activated in the settings Change the look of the interface
Some people (myself included) think that the TouchWiz interface is extremely ugly, which cannot be said about the "bare" Android. So, now you know that the appearance of the interface can be changed using different themes. And although this will not solve all the problems, at least it will make you more enjoyable to use your phone. You can also download wallpapers and icon packs.
The main drawback is the price. Ready to spend 120 rubles on an icon set?
Fortunately, some themes / wallpapers / icons are available completely free of charge, and some of them look really good. You will find them in the settings under Wallpapers & Themes. You can also access this section by tapping on the background of your screen for a few seconds, then tap on the Wallpaper & Themes button that appears in the lower left corner of the display.
Use "protected" files
And while many loudly proclaim that they have nothing to hide, what can be found on their phone or elsewhere, a feature that allows you to hide some things is useful.
When you hand the phone to your mom, you may not want her to see your party photos. Or maybe you don't want your girlfriend to see pictures of you dancing with other girls. Even if you haven't done anything wrong, making excuses is always unpleasant.
To avoid such troubles, Samsung added an option to protect files, first it appeared on the Note 7. You can put everything that you want to keep secret in a specific folder, and you can restrict access to this folder with a password or fingerprint.
The only condition for using this feature is that you have to use a Samsung code. Just go to the Applications menu, then in Samsung Apps and open Secure File. The rest is up to you.
Place your sensitive information in a secure folder Receive notification reminders
Has it ever happened: you receive a message on WhatsApp during an important meeting, and after its end, half an hour later, you completely forgot to read the message?
Samsung has carefully thought out and introduced the notification reminder function: if you forget to read the notification, the phone will remind you of this.
Of course, you can choose the types of notifications, and also choose which app can send you reminders.
Go to the Access menu in the settings, and then to the Notification reminders section. Here you will also find other interesting functions such as the "magnifying glass".
This is a very useful feature for the forgetful. Activate "simplified" mode
While advanced users will appreciate the customizable welcome screen, some of us lean towards simpler menus and larger font sizes.
You can activate this feature in the settings. But be careful - the icons will grow to huge sizes, even the notification menu will be changed!
To activate this mode, go to Settings and then select the Simple Mode function and activate it.
Simple Mode lives up to its name Some of the tricks that are already on other smartphones from Samsung can be used on the 2017 A3 / A5 models.
Send SOS signal
You can send an SOS signal if you suddenly find yourself in trouble: go to Settings> Advanced> SOS signal, as soon as the option is activated, you can add a recipient. Now all you need to do to send the SOS signal is to press the power off key three times.
Split screen function
The A5 has a split screen function. To get to it, click on the multitasking symbol, but remember that not all applications are compatible with this mode. But Google applications (Gmail, Play Store, etc.) have no problems with this mode.
Disable Upday
Samsung has decided to equip its devices with its own information system called Upday. New Galaxy A3 and A5 are no exception to the rule, so all you need to do is swipe right to access the Upday widget.
Don't panic in advance - if you're more used to Google Now, or just want to remove an extra widget from your home screen, Upday can be turned off.
To do this, you need to press and hold the screen for a couple of seconds. At the bottom, you will see three keys (Wallpaper, Widgets and Layout). Scroll right to access the screen located to the left of the center one. You will then be able to turn it off with the click of a button.
Fixing applications
In some cases, it can be convenient to lock the screen in one particular application. Notifications from all other apps will be blocked, you won't be able to open other apps, so your privacy will not become public.
Then press the multitasking key to see a list of running applications. At the top right of the most recent app, you'll find a pin. Click on it and the screen in this application will be locked.
The picture on the left shows how to deactivate Upday; on the right - how to block the app screen from receiving notifications
Did any of our tips help you get the most (or the least) out of your Galaxy A3 or A5? Have you found any other useful tricks for using these smartphones? Share with us in the comments.
Newer smartphones are getting bigger and smaller components. Nano-type SIM cards are now used. If you have a new large SIM card issued after 2011, you can cut it with a special device. It is better to reissue old cards because they stop working after trimming.
To install the SIM card into the phone, we will use the supplied pin to slide out the compartment for the SIM card and flash drive. Next, insert the card and push it back into the phone. The compartment on the left side is intended for card # 1. The upper compartment is for card # 2. For clarity, I suggest watching the video:
How to take a screenshot on Samsung A5?
You can get a screen on the Samsung Galaxy A5 2017 by holding down the power button on the right side and the bottom button on the left side. After about three seconds, you will hear a sound similar to a camera shutter release. A beep means the screen has been photographed. What happened can be found in the gallery.
How to install a ringtone on Samsung A5 2017?
To set the ringtone, go to the settings tab and from there to the "Sounds and Vibration" item. We choose where to put a melody or sound - a notification or SMS on the call. A tab with music will open, where we select the desired track. If you need a melody for a specific contact, then click "Phone" - "Contacts". Find the required subscriber from the list. Go to "Details" - "Change" - "More". At the very end of the list with parameters there is a "Ringtone" item. Click "Allow access to media data" (if not already allowed) and at the very bottom, in addition to standard melodies, the "Add from phone" button will appear. Next, select the track you like and you're done. To place the melody in the general list, use any file manager place it in the sdcard / Notifications folder.
As a last resort, use hard reset, which is described below.
How to factory reset Samsung A5?
To reset all settings to factory defaults, do the following:
- A fully charged device must be turned off.
- Press three buttons simultaneously: "Volume +", "Home", "Power on"
- Release all buttons when the logo appears.
- After 5-10 seconds, the “Recovery menu” will be entered and the robot's logo will appear. Press "Power on" and at the same time "Volume +". Release both buttons.
- We go to the item "Wipe data / factory reset". The cursor is moved by "Volume", you need to confirm by "Switching on".
- Select "Yes - delete all user data" when prompted and then click "Enable" once to reboot.
If you misunderstand, watch the Galaxy A5 2017 reset video:
How to record a conversation on Samsung A5?
If you do not consider the legal and legal aspects of recording a telephone conversation, to enable this function, use third party programs of Play Market... For example, "Call Recorder - Automatic Call Recorder", "C Mobile", "lovekara" "CallX - Call / Conversation Recording". I was helped by the first program that records automatically. Its only drawback is the abundance of various advertisements.
Many devices running the Android OS are additionally equipped with a special environment - the engineering menu. With its help, the user has the opportunity to test all the sensors and modules of the mobile device, as well as adjust certain parameters of the gadget for himself for more comfortable use. In Samsung phones, Engineering Mode is hidden in the system by default. And in different models, the entrance to it is performed differently. And the functionality of this area may also differ. Let's take a look at how to enter the engineering menu on Samsung Galaxy A5, Galaxy S6, J3 and other smartphones from the Galaxy line.
Where to find the engineering menu on Samsung Galaxy
The main purpose of Engineering Mode is to fully test mobile devices at the final stage of their production. This environment was originally developed for debuggers for smartphones and tablets, but today anyone can use it. The main thing is to know how to open technical mode on Galax.
You can enter the engineering menu using a special combination (USSD code), which is registered in the dial pad. At the same time, these commands may differ in different phone models:
- in Samsung J7 and J1, the actual combination is * # * # 0011 #;
- for Samsung Galaxy A5, Galaxy S5, Galaxy S6 dial * # * # 8255 # * # * or * # * # 197328640 # * # *;
- on Samsung Galaxy A3 the code is * # * # 9646633 # * # *;
- for Samsung Galaxy S3 - * # * # 0 # * # *;
- in Samsung Galaxy S7 Edge - * # * # 8255 # * # * or * # * # 4636 # * # *.
On other devices from the Galaxy line, you can use the service combinations * # * # 4636 # * # *, * # * # 8255 # * # * or * # * # 3646633 # * # *.
If you can't open the engineering menu using the above commands, you can resort to one of the programs developed specifically for this purpose (EngineerMode, Mobileuncle Tools, Shortcut Master, etc.). To start the technical mode, it is enough to install and run one of the utilities. After that, it will automatically enter Engineering Mode.
All apps to open engineering menu work only with MTK processors (MT6573, MT6577, MT6589, etc.) and with some Exyon chips. For phones equipped with a Qualcomm CPU (for example, Samsung Galaxy A5), such software will be useless.
The main features of the engineering menu on Samsung Galaxy
Having figured out how to enter the engineering menu on Samsung, we will consider its main features. The complete Engineering Mode for MTK Chips is equipped with a large number of tools that can be used to produce full diagnostics and fine tuning Samsung in many ways.
However, many smartphones have a stripped-down version of the technical mode, which slightly reduces its functionality. And in mobile devices based on the Qualcomm processor, through the engineering menu, you can only view information about some modules and perform small tests of the main elements of the phone (display, modem, SIM cards and battery).
On the Samsung Galaxy A5 and Galaxy S6, the main sections of the engineering menu are:
- Telephony (Telephony);
- Wireless interfaces (Connectivity);
- Testing mode (Hardware Testing).
In the Telephony tab, the user can:
The Connectivity section is intended for diagnostics and configuration of Wi-Fi, Bluetooth and FM wireless modules. It is not recommended to change anything here, as this can lead to the failure of the smartphone. 
The most popular engineering menu tab is Hardware Testing. This is where you can test the performance of the processor, battery, speakers, camera, display and GPS module. This area allows you to make a complete diagnosis of Samsung at the time of purchase and identify possible product malfunctions. 
To install a SIM card in Samsung Galaxy A3, you do not need to have specific skills and abilities. Therefore, everyone can cope with this task. The only thing you need to know is what format cards are suitable for the specified phone model and how the card holder opens in it. Let's consider how to independently insert a SIM card into the Samsung Galaxy A3.
What connectors does the Galaxy A3 come with?
To date, Samsung has released three modifications of the Galaxy A5. They differ from each other not only in the filling and screen size, but also in the placement and parameters of the SIM slots:
In Samsung Galaxy A3, the connectors are opened with a special key (ejector), which is supplied with the phone. However, if you do not have one with you, you can resort to a sewing needle or a simple paper clip.
SIM Crop Technology for Samsung Galaxy A3
If you decide to swap out your outdated smartphone for the new Galaxy A3, most likely you have a Mini or Micro SIM card. Therefore, before inserting an old SIM card, it will need to be cut to the Nano standard.
To give the card the required size, you can go to a phone sales point and perform the specified procedure there, paying a certain amount of money. However, pruning is quite realistic at home. This is done as follows:
After completing the preparatory work, the SIM card can be inserted into the phone.
Installing a SIM card in Samsung Galaxy A3
Installing the SIM-card on the Galaxy A3 is done in the following order:
- Turn off the gadget and disconnect the power supply if it was charging at that time. Otherwise, the power amplifier or microcontroller responsible for power distribution may be damaged.
- Take the key clip, insert it into the round hole located on the cover of the card holder, and press lightly.
- When the tray comes out, pull it completely out of the phone. Do the same operation with the second slot (of course, if necessary).
- Insert a Nano-SIM, and if necessary, a second card or external microSD memory.
- Replace the connector by applying light pressure.
After completing the task, turn on the smartphone and check its performance. If the SIM card and memory card are detected, then everything is done correctly. If in the future you need to install a Nano-SIM in a Mini or Micro card holder, you can use special adapters sold in cell phone stores. 