Translation:
Why do I get that I don't have space to update when I do?
Hello, my ipad needs to be updated and the update I get about 769.1 MG, my ipad has about 8GB of storage available and my icloud about 164 GB, and I get that I don't have enough space for the update, please if someone could help me, I even deleted apps but nothing
It is generally recommended that you maintain at least 4-6GB of free space at all times - as your iPad needs some temporary space to complete some tasks - such as performing system software updates. Your available iCloud storage is irrelevant - as this storage is not utilised by the software update process.
A system software update requires sufficient space to be downloaded, unpacked and verified prior to installation - major version updates (such as updating from iPadOS 16.x to iPadOS 17) requiring considerably more space than an incremental point-update. After the update is successfully completed, temporary files are automatically deleted - returning free space.
A good rule-of-thumb is to ensure that you have double the space required for the update itself. Remember, the update requires space to be downloaded - and then sufficient additional space to within which to unpacked prior to being installed. If you perform the update using a Mac computer or Windows PC, you will need less free-space on your iPad - as the update is downloaded to the host computer where it is unpacked and verified prior to being installed on your iPad.
If your internal storage is full, or is insufficient for the task that you need to perform, your only option is to better manage the storage that you have - and delete unused Apps or unneeded data.
These support pages should prove to be helpful:
About storage on your device and in iCloud – Apple Support
What's the difference between device storage and iCloud storage? – Apple Support
Manage your iCloud storage – Apple Support
How to check the storage on your iPhone, iPad and iPod touch – Apple Support
Clear Other storage on your iPhone or iPad - Apple Support
“Offloading” Apps can be a helpful method of creating temporary space for a software update.
https://9to5mac.com/2020/01/21/how-to-offload-apps-in-ios-to-save-space-without-deleting-their-data/
Additional information about creating sufficient space for installation of a software update can be found here:
If you need more space for an update on your iPhone, iPad, or iPod touch - Apple Support
External storage options can often help with managing limited internal storage. Depending upon your iPad model, the iPad will either have a Lightning or USB-C port - and may therefore require either an Adapter or USB hub to connect the USB Storage device. If your iPad has a Lightning port, you’ll need an Apple Lightning to USB3 Camera Adapter:
- Lightning to USB 3 Camera Adapter
https://store.apple.com/uk/xc/product/MK0W2ZM/A