
Actually, you have been lucky enough to avoid the accidental data wiping in the process of iOS 8.4 updating, because data lost during the updating process cannot be recovered from the iPhone or iPad at all. While if you lose call history only after you have updated to the latest iOS 8.4, it is not only possible to recover the lost call history from your iOS 8.4 iPhone or iPad but also recover the lost call history selectively. You can achieve so with a piece of magic third party software iFonebox. This professional iOS data recovery software can recover not only call history but also contacts, notes, messages, reminders, and whatsapp etc from your iPhone or iPad running iOS 8.4 but also from iTunes or iCloud.
You can firstly download a free trial version to have a try but you need to pay for the full version with registration code.
Next I am going to demonstrate how to recover the lost or deleted call histoty from iOS 8.4 iPhone or iPad selectively.
Step 1: Connect your iPhone or iPad to your computer at first. Install and launch the full version of iFonebox. After your iOS 8.4 iPhone or iPad being detected, hit the button of “Start”. You have successfully chosen the recovery mode of “Recover from iOS Device”.

Step 2: You will be presented with an interface of data types list from which you need to click to choose call history to recover by clicking on the icon of Call History.

Step 3: Take a preview and then recover the exported call history to your computer. If you just want the lost or deleted items back, please check “Only display the deleted items.”

Note: The current verison of iFonebox only supports recover the lost or deleted Call History item from iOS 8.4 iPhone or iPad to computer for convenient checking.