How to retrieve iPhone data when iPhone did a factory restore?
Someone got hold of your iPhone and it looks like they did a factory restore by mistake, you will want to get back your lost data as quickly as possible. First of all, you need to know what just happened? Connect your iPhone and your computer. Check your iPhone internal storage via Windows Explorer, whether you still can see the photos and videos in the DCIM file folder on the iPhone internal storage where you normally find them. Or you can check the storage of iPhone with iTunes.
Don’t worry, it is possible to get your data back! The answer is software such as iPhone Data Recovery for iOS. This program works to recovery your data from the iPhone 6S, as well as the SE, 6S Plus and 6. This program is also useful if your phone is damaged and you need to get the lost data off of it. To start, all you need to do is download the iPhone Data Recovery for iOS to your computer. Afterwards, you can get your data back via either iTunes or iCloud.
Restore Lost Data via iTunes
It would be good news if you had previously connected to iTunes to sync and make an iTunes backup before. If so, launching iPhone Data Recovery software. Then select scan from Recover from iTunes Backups, which will list all iTunes backup files.
All your iTunes backup files have been found and displayed. Select one for your iPhone and click "Start Scan" button.
Restore Data via iCloud
By default, iPhone automatically backs up your iPhone data to iCloud, when you use the Apple ID to login to use iCloud. So if you have your iPhone backed up on iCloud, pick “recover from iCloud backup file” after launching iPhone Data Recovery. Pick the iCloud backup file you want and click “Download.” When it is done, click “recover” and all your los data will go to your computer.
All your iCloud backups have been found and displayed. Select one for your iPhone and click "Start Download" button.
After the scanning has completed, you can view all the iPhone data.