I keep getting errors when i try to update my phone

Which error notifications do you get when you attempt to update your iPhone?

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Make sure that your iPhone is setup to meet the following requirements before you attempt to update the iOS version over a Wi-Fi Network. Open Settings ➡️ General ➡️ Software Update: If there is an update available for your iPhone then it will be listed here. Follow the on-screen instructions to download and update your iPhone. 

• 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 8GB 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.

If you do not have enough free storage space, then you are not going to be able to download and install the update. I recommend that you create at least 10GB of free space to get the update downloaded and installed. You can create free storage space by deleting data from your iPhone. I recommend that you begin with the media files (Videos, Music and Photos) because media files take up the most space.

Axel F.

what if i dont have 8gb of space