How to Delete All Contacts from Android Phone

With the developing of smart phones, mobile phone has become an indispensable tool and is playing a more and more important role in modern life. Many people use an android phone to communicate with others and record important contacts for convenience. However, it will also become a big trouble when we switch to a new phone and deal with the old one by selling, donating or giving it away. How can we delete contacts on android phone without recovery to prevent them from being filched?

Can deleted contacts get recovered? 

Actually, yes. It is possible and quite easy to recover deleted contacts from android with a data recovery software like Jihosoft Android Phone Recovery. Do you know the reason? Your contacts won’t be wiped out immediately because the operation of deleting just means the space they took up is available for new data. Although become invisible, they still exist in the internal storage, and won’t disappear completely until some new data is written over them and take up their space. Therefore, you cannot erase contacts from android permanently by simply deleting.

2 methods to clean up contacts on android thoroughly 

Method 1: Clear contacts on android by Android Mobile Eraser 

Considering the powerful function of data recovery tools, it is a safer choice to use an Android Mobile Eraser to clean up contacts on android. Here Jihosoft Mobile Privacy Eraser is highly recommended. Just a few steps and you can delete not only contacts but also photos, call logs, messages, videos and more from android beyond recovery.

Step 1: Install and run Jihosoft Mobile Privacy Eraser on your computer.

Step 2: Connect your android phone to computer.

Plug your phone to computer with a USB cable, and turn on the USB debugging mode to identify your device. If you have any problem, click here for guidance

Step 3: Select a erasing plan, then choose data you want to erase.

You can choose a erasing type according to need. Here are 3 options for you, which allow you to delete existing or deleted contacts. 

Once erasing plan is chosen, the software will automatically scan your your device, and the result will be listed by category. Select “Contacts”.

Step 4: Choose a data erasing algorithm, and confirm erasing.

There are 5 erasing algorithms ranked from low to high for you to choose. The higher level algorithm you choose, the less possibility to recover these contacts.

After choosing a easing algorithm, type “Erase” in the blank and click “Confirm” to remove your contacts.

Method 2: Clear contacts on android by factory reset.

Factory reset is a built-in program to clear your android phone data, but it will wipe not only contacts but also all the data on your android phone.

Step 1: Encrypt your phone to decrease the possibility of recovery.

Go to the “Settings” and tap on “Security”. Then tap on “Encrypt” at the bottom of the screen.

Step2: Factory reset your android phone.

Please operate follow “Settings” > “Back up and reset” > “Factory data reset”