Apple devices take a long time to sync videos and music, and how can I transfer them successfully?

The transfer rate for anything depends solely on your connection speed to the internet. How fast is your connection? (Go to fast.com or speedtest.net to find out).

Do you have a 3rd party VPN installed, even if you are not using it? VPN slows your speed to 25% of your raw data rate. If you do, delete the VPN profile in Settings/General/VPN & Device Management/VPN, then restart your device. Don't just turn it off; delete the profile. Updates sometimes need to have VPN to be removed and reinstalled. If that fixes it, you can try reinstalling VPN, but probably shouldn't.

With respect to music, are you talking about cloud-based synchronization ("Sync Devices" with an iTunes Match or Apple Music subscription)? Or about manual synchronization (from iTunes or the Finder)?

If you are doing manual synchronization, using a cable, note that

• The Lightning ports on older iPhones (like the iPhone 11) can only transfer data at a maximum of USB 2.0 speeds.
• The USB-C ports on newer iPhones are generally limited to USB 2.0 speeds on "plain" or Plus models. Apple has been reserving USB 3.* speeds for Pro and Pro Max models.

"Apple devices take a long time to sync videos and music, and how can I transfer them successfully?: Someone please let me know why Apple devices doesn't sync videos and music in a short amount of time. iTunes was working great and that has been discontinued and a new device is in operation which definitely requires some technical assistance. I have been trying to transfer home videos it took very long time to transfer and two days later they were disappeared."

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Data Transfer Rate:

A. Use your OWN LAN:

Keep this plugged into a wall outlet for power, and be attached to a network(LAN) that is private(esp. that of your own). If connected to a public LAN, then you might get kicked off, if using too much of the data use you are granted --something campgrounds and hotels have a reputation of performing.

B. Videos Disappearing:

Tap on Search (located at the bottom of a Home Screen) and then type [the name] of these "disappeared" home videos. If locally stored or uploaded to iCloud, then they'll show up. So, find the name of the file(If not known), and then type it in there. Do they show?

"Apple devices take a long time to sync videos and music, and how can I transfer them successfully?"

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Clear the System Data:

If it's just disappearing after a download, there may a flaw in the iOS app. So, clear the caches. Caches are created so that apps open quicker, and operate more affectively. As things are learned, changes are made. So, to clear these, you need to clear the System Data shown in your iPhone's storage. You would back up your iPhone to a computer (Mac or PC), and then restore your iPhone from that backup you just made. Use my User Tip: How to Clear "System Data" in your iPhone's Storage: - User Tip

Ro620 wrote:

I think I have the 2.0 cord. not sure regardless why are they disappearing?

I don't know why they are disappearing.

I was just answering the question of why transfers might be slow if you were doing manual synchronization over a cable and you had a lot of stuff to transfer.

Ro620 wrote:

I don't have third party VPN. It is just a YouTube downloaded videos and it takes for ever and it takes three or four attempts to even work. I have done all that and two days later they were disappeared from my iPhone Apple TV app. It is frustrating when I spent so much time on it and later its gone.

I’ll ask again: what is your internet download speed?

372 what? 372 megabits per second, or gigabits per second, or kilobits per second?

If it is 372 MBPS that’s marginal for long videos.