HOW TO FORMAT ANDROID PHONES

Please follow these steps for a successful result.

Case A: In many cases, this procedure is done when we sell on the second hand or even give our device to a friend or family member so you can use, and do not want others to access our privacy information.


Case B: You may feel the performance of a Android device is slowing because of junk files that occupy the memory system, you Android phone often doesn't work correct, poorly functioning.


No matter the reason, you should always format and reset the device. It's necessary to let you understand that Android formatting means just deleting the user data i.e images, videos, songs, contact numbers, etc which you have saved in the phone memory. It will not touch the operating system. Formatting a Android brings the total loss of user information, not the system itself. Equivalent to formatting a PC, the system would remain intact, but completely clean customisations.
When should I format an Android phone?


As discussed earlier, there are several reasons to format your mobile Android…


1). When you go to sell your second-hand device or give your phone to someone else to use it.

2). When you return your device for service and do not want to reveal personal data

3). When you lose the stability of the system and want to start customising from scratch.

4). Formatting a cell phone is required when it is infected by virus.


Note: I would strongly suggest that you'd better back up android data to computer in advance before formatting an Android phone like Samsung Galaxy, HTC, LG, Sony, Nexus,etc.
Part 1. Format Android Device with Factory Reset


As I say erase all of your phone's data and restore it to the original settings, all of your data will gone forever and can't be recovered. So, don't forget to make a backup of your important data. This guide will walk you through formatting your device


Open the menu and select Settings, then in the section, choose Personal Backup and restore. Once inside we choose Factory data reset. Tap “Reset device” to delete all data on your phone and restore original factory settings. By default, all your phone's internal storage will be erased. After a few minutes you will have a whole new phone










Part 2. You Can Also Format Android in Recovery Mode


Another method to formatting a android is a little more complicated because it requires you to enter recovery mode. Just follow the steps below.


1) Turn off your Android phone, press and hold the VOLUME UP button for some seconds


2) If you do OK you will get into recovery mode menu.


3) You can navigate the menu with the volume buttons and locate the factory reset mode, then confirm it.



Android formatting also format the MicroSD?


In the event that your phone has MicroSD, not all devices accept, as the range of Nexus One or HTC, the answer is no, the SD card can be formatted independently if desired, factory reset doesn't clear the internal SD. If you need, you can try this steps: Go to Settings->Storage->Format SD card.


It will not replace the custom ROM if you perform factory reset on your phone, but it will reset the device to the way it was right after you installed the ROM on your device. I've formatted my Android tablet with the part 1 method.
Part 3: Securely Format Android Device with Data Erasing Software


The data that was deleted by factory reset can be recoverable by professional Android data recovery software. So it is not a safe way to keep your privacy under protection. If you really cared about the information on Android device, then you should use Android data erasing tool to permanently wipe everything on Android phone or tablet.


In the following example, We are taking  Android Eraser as a demo. We already tested the program on various andriod devcies, including Samsung Galaxy S6, LG G5, Xperia Z3 and HTC One M8. It works well on all the devices. We also purchased commercial data recovery software and tried to get content after erasing. However, nothing was scanned.






Step 1
Download and Android Data Eraser and Install it on Computer


The first step is to download Android Data Eraser and follow the instructions to successfully install it on a computer. After that, open the program and you will get 3 erasing options. In here, we need to choose 'Erase All Data' from the main window.



Step 2Turn on USB Debugging and Connect Android Device to Computer


Please check whether USB debugging function is enabled on the phone. If not, you need to follow the steps in below picture to turn it on. Then connect the device to computer with USB cable. A few seconds later, you will find out the phone was detected by the program.


Note: If the program couldn't detect the phone, please download and install the latest USB driver for the device.



Step 3Scan All Content and Start Wiping Android


Now click 'Erase' button to let the program fully scan all the content and settings on the device. This will take 7-10 minutes. After that, type 'Erase' in the input box to confimr the erasing operation. A few minutes later, all the personal data on the device will be removed cleanly.



Step 4Factory Reset Android (Important)


To make the formatting more secure, it is highly recommended to factory reset the device again after erasing. After doing this, there is no way to get anything from the phone.