I Had my phone connected to wifi when iOS 13 was installed, But when I checked the mobile data usage on my handset it says it’s increased by 24gb is this a glitch or has it used 4g to update?
If you have WiFi assist turned on it will use data if it thinks the data connection is better than WiFi.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Currently using: Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)
Turn it off and turn off mobile data when on WiFi.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Currently using: Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)