iPhone won't update to 12.3.1 via iTunes
My phone (6s) has a pending update to 12.3.1, but there isn't enough storage available to install. I've read that using iTunes can get around this, but when attempting to update via iTunes, i still get an error message indicating more free space is needed. I thought deleting the downloaded update would free up space, but I don't see it in the storage list. Couple questions:
- How do I delete the downloaded update
- How can I complete the update via iTunes
Thanks in advance for any assistance.
iPhone 6s, iOS 12