iCloud issue

Thanks for the additional information TonyTz. From here, as this is still going on, and you're not able to get your iCloud password working, we'd recommend reaching out to Apple Support: Contact Apple Support

Regards.

Hi TonyTz,

Let's try the following steps which can help resolve issues with connecting to your iCloud account:

• "Plug your device into power and make sure that you're connected to Wi-Fi. You can't restore from a backup over a cellular Internet connection. 
• Check your software version and update if needed.
• If it's your first time restoring from an iCloud backup, learn what to do. When you choose a backup, you can tap Show All to see all available backups. 

The time it takes to restore from a backup depends on the size of your backup and the speed of your Wi-Fi network. If you still need help, check below for your issue or the alert message that you see.

If you get repeated prompts to enter your password

If you made purchases with more than one Apple ID, you might get repeated prompts to enter a password.

1. Enter the password for each Apple ID requested. 
2. If you don't know the correct password, tap Skip this Step or Cancel. 
3. Repeat until there are no more prompts.
4. Create a new backup. "

If restore from iCloud backup failed

Cheers.