The growing concern towards privacy on Android device has been increasing sharply in recent years as we almost put the most import data and asset on those devices, such as contacts, photos, videos, login details, purchase history, etc… Obviously, none of us want those data being accessed by unauthorized parties. That's the reason why we need to delete everything permanently on the old Android device we are going to sell it out.
The built-in factory reset is the most widely recommended and adopted data erasing method for most of Android users. However, there is a hidden bug laid on it if you didn't take it seriously. I found out occasionally that the data was still available by using certain data recovery software if you go with the default factory reset. It's very dangerous to get your privacy data exposed to someone who you are not familiar with. And you have no idea what he or she was going to do with the found data.
There are many Android data recovery softwares in the market can easily scan all "already deleted data" and the data from a "Factory reset" phone. See why factory reset won't delete everything on Andriod.
Here we choose any two of Android data recovery softwares to test how they scan deleted data from Samsung phone.
Test 1: Scanned out all messages and other data.
Test 2: Scanned out all messages with details.
Look: This data recovery program is deeply scanning all the data from Android phone and easily recover them. Don't worry, there is still a reliable way to wipe your Android data without recovery. So let's take a look down.
The deleted data is still available unless it was over written by others. It's pretty hard to get it done manually, but it can be easy with the help of automation programs. Android Data Eraser is a powerful erasing tool designed for Android users to wipe Android phone completely before selling. It writes a random of digits to existing data to make it unrecoverable. What's more, it repeats the process multiple times so that none of the data recovery software can gets a piece of data from the device. 3000+ Android Smartphones and tablets are supported by the program.
You can also directly download below.
You have to install the program before you can do anything about data erasing. The download link is available from above links, which supports both Windows and Mac computers. The installation is as simple as you can imagine. Only a few mouse clicks are needed. The main screen of the program is shown as follows:
Plug your Android phone or tablet to the computer through USB cable. The device will be detected in seconds once it was connected and recognized by the computer. After detection, the program shows name of the device found by it. If nothing happened, please make sure Android USB driver is well installed.
When the primary window appears, you will see it has three erasing option, just click "Erase Private Data". This brings up the data scanning window, click "Erase" button to let the program scans your content.
After scanning, all the data stored in your phone will be displayed in the program, you just need to select the data type you want to erase, then click "Erase" button.
If you’re sure you need to erase everything or part data from your device, here you need to type "Erase" word in the box to confirm. You can also choose wiping level by click Security Level option.
In this step, everything is set up well and the program will start wiping the device once the operation is confirmed. So please make sure all your data is backed up. If not, you can use the program to back up your device first. It will take a while to complete the task depending on how many files stored on the device.
When the data was deleted by the program, there is no chance to get them back because of the sophisticated algorithms adopted by the program. The traceable footprints have gone forever and no longer available by any data recovery software sold on the market place. After testing, we have to admit that this Android Data Eraser program is really a must-have tool if you changed your Android device frequently.