In case you use iOS device
It is known that Apple implements a lot of security features into their products. This causes the iOS to be limited in a sense of returning the phonebook data while the iPhone is connected via USB cable.
This limitation can be bypassed by using a Wi-Fi connection. While connecting the iPhone to MOBILedit via Wi-Fi you will be able to work with your phonebook without any limitations. For more information about the Wi-Fi connection see our user guide here.
This message occurs most likely when you use iCloud sync with your
iPhone. In order to edit contacts in your iCloud account, turn off the
iCloud synchronization in iPhone Settings and choose "keep in the
phone". Contacts from iCloud will be copied into your iPhone's internal
memory, so you will be able to edit them using MOBILedit!.
Then just turn the iCloud synchronization back on and the data will sync back into your iCloud account.
The same also applies for other services like exchange or Google contacts.
If you have contacts stored directly in the device and MOBILedit! can’t read them, contact our technical support at firstname.lastname@example.org .
Troubleshooting Empty Phonebook Tips