iCloud Error: The Last Backup Could Not Be Completed During iOS 9 Upgrade


Whenever you are initiating a backup via iCloud, the process begins and halts after sometime, displaying the error message: “the last backup could not be completed.”

This error appears when you are using iOS 8 (for upgrading purpose) or iOS 9 firmware on your iPhone / iPad as shown in the screenshot:


First, you get an “estimating time remaining” message when you hit the “Back Up Now” button from your iCloud. Then, minutes later, it shows the “the last backup could not be completed.”

As an iOS dev explains:

“This is frustrating! I now have to manually backup all my games, apps, documents, photo albums to my computer. What’s the use of iCloud backup option that NEVER works when needed the most?”

We do have a couple of solutions that we will share with you in another post. For now, Apple recommends a couple of generic fixes that should help you solve this iCloud issue:

– Make sure you’re connected to the Internet with Wi-Fi.
– If possible, try connecting to a different Wi-Fi network.
– See if you have enough iCloud storage for your backup, and get more storage if you need it.
– If you need more help, contact Apple Support.