As we all know that when we accidentally lost data on iPhone, you still can restore from your iTunes backup. While sometimes you may find that you iPhone cannot restore from iTunes. This problem usually occurs after you update your iPhone. When you restore iPhone, iTunes may prompts you error 21 occurs, or the iPhone stuck in recovery mode, or the iTunes even cannot recognize your iPhone. In these cases, we have to fix this restore problem if we want to retrieve your lost data.
iPhone cannot restore from iTunes after update
Sometimes, when you connect your iPhone with computer after updating, you may find that your iPhone cannot be detected by iTunes. So you cannot restore your iPhone from iTunes. What can we do to connect iPhone if it cannot be detected?
First, you should update your iTunes to the latest version.
Second, start your iPhone in Recovery mode. To enter into recovery mode, you should power down the iPhone and then connect it with computer, you should hold down the home button while power it on. Then you will see iTunes with the icon on the screen. Then you are able to restore your iPhone normally from iTunes.
Other unknown errors
There are some strange errors occurs when you are trying to restore iPhone. Such as error 21, error 9006 or other unknown errors. Different error stands for different problems. Error 21 means hardware failure. Click More information button you can follow the solutions given by Apple.
How to deal with iPhone that failed to restore after jailbreak?
After you have jailbreaked iPhone and restore in iTunes but get the message that This device isn’t eligible for the requested build. In that case, you should put your iPhone in DFU mode.
Hold down the power button and power button at the same time for several seconds. Then you can restore iPhone in iTunes.
How to restore and selectively restore data from iTunes backup to iPhone?
With iTunes backup, you can only restore all data in backup to iPhone. If you want to selectively restore data from backup, you should use a data recovery software.
Step 1: Run H Data iPhone recovery software on computer which store your iTunes backup. You should download from the official website of the software.
Step 2: choose an iTunes backup to scan. The software will list all the iTunes backup it detects. You should configure the backup version you need according to the device, backup time, serial number. If you do not find the one you need, you should choose it by manual. Click SCAN button to scan the backup you choose.
Third, after scan, you can preview all the data in iTunes backup. You are able to selectively preview and restore data. Click the file type on the left side and preview the detailed information on the right side. As long as you can preview them, you are 100% successfully restore them.
Fourth, tick the files that you need to recover and click to export them. All the data then are extracted from iTunes backup to your computer in the recovery location.
Similarly, if you lost data on iPhone but you do not have iTunes or iCloud backup, you still can use this recovery software to scan your iPhone for lost data. But to avoid possible data loss, you still should back up your data regularly. Not at every time you can use the data recovery software to restore the lost data on devices. The recovery program can only recover the lost data that have not been completely erased. If you add new data to iPhone after data loss, the lost data have great possibility to be replaced by new data. Once the data overwritten happen, you can never recover from the device.