How to back up my iphone 8 plus

How do I backup my entire iPhone data?

How to back up your iPhone or iPad with iCloud.
Connect your device to a Wi-Fi network..
Go to Settings > [your name], and tap iCloud..
Tap iCloud Backup..
Tap Back Up Now. Stay connected to your Wi-Fi network until the process ends. Under Back Up Now, you'll see the date and time of your last backup..

How do I backup my iPhone 8 to my laptop?

Back up your device.
Connect your device to the computer you normally sync with. You can connect your device using a USB or USB-C cable or a Wi-Fi connection. ... .
In the iTunes app on your PC, click the Device button near the top left of the iTunes window..
Click Summary..
Click Back Up Now (below Backups)..

How do I know if my iPhone 8 is backed up?

Tap your name at the top, then choose iCloud. Tap the graph that shows your iCloud usage, then tap Manage Storage. Select your device. iOS will show you details about when it was last backed up, and the backup file size.

Why is my iPhone 8 plus not backing up?

Please check that your device is correctly connected to the wifi/internet (Settings ➔ Wifi) and is plugged into a power source, also check that you have enough space in iCloud for your backup.