Here is a wonderful and easy trick to recover your unfortunately deleted or lost Contacts phone numbers .This procedures requires an Android phone number recovery tool: Android Data Recovery. It allows you to undeleted and recover your phone numbers directly from Android, as well as messages, photos and videos.
Get this program with below buttons to get back the deleted contacts to your Android phone contacts list.
To do the Android phone numbers recovery see the steps mentioned below:
How to restore lost phone numbers from Android phoneStep 1 Stop Updating Any Data in Your Phone
If you find your Android data get lost unintentionally, you should stop updating anything because, for example, if you add or delete any phone number after losing data, the phone will automatically update this and your backup file will be overwritten. That is, your phone number that deleted unintentionally is likely to leave you forever. That's why the excellent Android data recovering tool - Android Data Recovery is designed to be downloaded on PC-end or Mac-end.
Step 2 Connect your Android phone to the computer
Once you install and run Android phone number recovery tool, it will ask you to connect your Android phone to the computer.
Step 3 Enable USB debugging on your Android phone
If your phone has not open USB debugging, this program will prompt you to move to your Android phone to enable USB debugging.
1) For Android 4.2 or newer: Enter "Settings" > Click "About Phone" > Tap "Build number" for several times until getting a note "You are under developer mode" > Back to "Settings" > Click "Developer options" > Check "USB debugging"
2) For Android 3.0 to 4.1: Enter "Settings" > Click "Developer options" > Check "USB debugging"
3) For Android 2.3 or earlier: Enter "Settings" > Click "Applications" > Click "Development" > Check "USB debugging"
After your device identified, you can get your Android ready to be scanned. Tick the ones you want so as to save more money. For example, "Contacts", and click next to start the scan.
Step 4 Allow Software to Scan Lost Data
Note: Before starting, please make sure that your phone battery is more than 20% changed.
When you get a window as follows, turn back to your phone again and click "Allow" to permit the Superuser Request, and then click "Start" on the program's window to begin the scan.
Step 5 Preview and retrieve phone numbers on Android
When the scanning finish, you will find all your deleted(orange ones) or undeleted(black ones) contacts are listed on the right window. Choose those you want and click "Recover" to save them to your PC.
Note: After recover your phone numbers to your computer, you can use the Android Transfer to import them back to your Android phone.
Step 6 Frequently Back up Your Android Device to Protect the Files
Frequently back-up your Android data will be encouraged to prevent your Android data from losing forever. So, just back up Android data from time to time.
Now, all your lost phone numbers have been saved to your Android phone with the help of this Android Data Recovery.