im using iphone 6s, i have already cleared enough space for the update, but it still shows i cannot download and install. what should i do?

What do you see exactly on your screen? Can you post a screenshot?

Make sure that your iPhone is setup to meet the following requirements before you attempt to update the iOS version-

• Your iPhone must have a fast Wi-Fi connection; you cannot update over cellular data or a cellular hotspot
• The iPhone can not be in Low Power mode
• The battery state of charge must be above 50%
• Your iPhone must have at least 6GB or more free storage space
• Your iPhone cannot be connected through VPN
• You should leave the phone plugged in until it finishes updating, both to assure that it remains above 50% and to keep Wi-Fi enabled (Wi-Fi turns off when the phone sleeps if not connected to power).

Axel F.

I have an iPhone 6s with 1.04 available storage, but cannot install iOS 14.6 from my computer. Error says it needs 807.5 MB of free space to install.