For gamers utilizing devices running iOS 13, after downloading and installing Call of Duty Mobile VN, it's common to encounter this issue due to a Facebook app malfunction. Here's how to fix it.
Fixed the Facebook login error in COD Mobile VN on iOS 13.
Get the latest version update of Call of Duty Mobile VN here:
Step 1: Open the default Safari browser on your mobile device, go to the website address Here, and log in to your Facebook account on the browser.
Step 2: Close all instances of Call of Duty Mobile VN (including background processes) and then restart => log into COD Mobile using your Facebook account.
Step 3: The Call of Duty Mobile VN system will prompt to use your Facebook account for login, press Continue to allow usage as depicted by Mytour's provided image below. Note that you must have logged into Facebook prior to this.
Step 4: Next, press Continue once again to confirm granting permission to log into Call of Duty Mobile VN via Facebook.
If Call of Duty Mobile VN players wish to log in with a different Facebook account on the same phone, you need to log out of the old account first and then log into the new account on the Facebook website using the Safari browser on iPhone.
We hope that Mytour's guide on fixing the Facebook login issue in Call of Duty Mobile VN will help you have fantastic experiences on your iOS 13 device. If you have any questions, don't forget to leave a comment in the section below. Call of Duty Mobile VN codes are also compiled by us here.