Why can t I upload my iPhone contacts anymore, I can only modify the uploaded ones?

How to backup, delete, and restore contacts on iPhone:

1. **360 Mobile Guard and open it, click "Contacts Optimization", click "Login", log in to 360, click "Backup Contacts", return to the home page, press "Settings" in the upper right corner, click "Personal", and log out. Open 360 Mobile Guard, click "Contacts Optimization", click "Settings" in the upper right corner, and turn on "Contacts Auto Backup" to automatically back up your contacts.

2. Open 360 Mobile Guard, click "Contacts Optimization", click "Login" to log in to 360, press "Settings" in the upper right corner, select "Clear Contacts", and press "OK" to delete all contacts in Contacts.

3. Open 360 Mobile Phone Guard, click "Contacts Optimization", click "Login" to log in to 360, click "Restore Contacts", select Contacts backup history, select "Restore to Local Contacts", and press "OK" to restore Contacts to your phone.

Export your iPhone contacts to your computer and back up to your QQ mailbox contacts:

1. Open the iTools app on your phone, connect it to the computer with a data cable, and select "Trust" in the prompt box that pops up on the interface of the iTools app on your phone. Open the computer iTools app, select the "Info" option at the top, select the "Contacts" option on the left by default, then check the "Small Box" on the left side of "Name", click the "Export" option, select "All Contacts" in the pop-up "Export Contacts" dialog box, select "vcard" in the "Export to" option, press "OK", press "Desktop", press "Save" to save the file to desktop.

2. Open the QQ mailbox on your computer, select "Contacts", select "Tools - Import Contact Files", click "Select Files" in "Import Files", find and select the desktop file, press "Open", click "Contacts" in "Import to", and press "OK" to import contacts.

Import the vcard format address book file to your iPhone

Open the iTools app on your phone, connect it to the computer with a data cable, and select "Trust" in the prompt box that pops up on the interface of the iTools app on your phone. Open the iTools app on your computer, select the "Info" option at the top, select the "Contacts" option on the left by default, then click the "Import" option, select "Import VCF File" (vCard file is usually suffix VCF), find and select the VCF file, and press "Open" to import the file into your iPhone Contacts.