You can try GT Recovery for Windows - the best data recovery software !
Accidently deleted some contacts on your Samsung Galaxy S6 ? A software can help you from big headache of Restoring deleted Contacts.
Here on video we Show you step-by-step guide to recover deleted contacts on android device with GT Recovery for Windows.
With this way you can recover deleted contacts on any brands of Android device such as Samsung, HTC, Huawei, Sony, Motorola, Lenovo, LG, Sharp, etc.