This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl.
In iOS 13.6.1 and iPadOS 13.6.1, one of the main fixes is said to address "an issue where unneeded system data files might not be automatically deleted when available storage is low". Specifically, it means that an issue where categories that are labeled "other" on iOS/iPadOS 13 (Check from Settings > General > [Device] Storage.) may not be freed has been resolved.
But updating also requires a certain amount of workspace, and if you don't have enough storage space, you won't be able to update your iOS or iPad OS in the first place. For those cases, Apple has released a support document that shows how to free up space to update.
But the problem is that there is not enough free space on the device to update it, even if you use a computer. The procedure for this is as follows
Back up your device with iCloud or a computer.
When the backup is complete, go to Settings > General > Reset. Then tap Erase All Content and Settings. If asked, enter your passcode or Apple ID password.
Follow the instructions on your screen to set up your device. When asked how you want to transfer apps and data to this device, tap Restore from iCloud Backup or Restore from Mac or PC, and choose the backup you just made. Continue setting up your device.
Wait for the restore process to finish. Then go to Settings > General > Software Update, and install iOS or iPadOS 13.6.1.
If you restored from an iCloud backup, you might see your Home screen before the restore is complete. Wait for the restore to complete before you update your iPhone or iPad. You can check the restore progress in Settings > [your name] > iCloud > iCloud Backup.
Don't install new apps, or download or stream music or videos, until you've installed iOS or iPadOS 13.6.1.
This means that it is essential to completely initialize your iPhone or iPad at least once. It takes a lot of courage and time, and it is strictly forbidden to carelessly add apps, music or videos, or stream them while you are updating, but we recommend that you go through the update process with the utmost care.
This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.