My iphone backup keeps failing

DSM8317 wrote:

I have an iphone 12 pro max running iOS version 17.4.

I just got an iphone 15 pro max, transfer is getting stuck on "estimating time", I gave up after 4-5 hours.

I upgraded the icloud to 200GB, my phone storage is at 40GB or a bit more.

Backup is failing on icloud, I gave up on it on itunes after 5 hours as well, and transfer is not working!

I had tried transferring when it was 17.3 but it failed, I rebooted both phones, I then upgraded, that did not resolve it.

I tried to back up to icloud multiple times.

what can I do? I need the photos and contacts and data on that phone!

if you're restoring from your icloud backup, connect to wifi, plug phone to power source, lock the device and leave it alone to finish.