
Try first to optimize the range of the mobile network, see this Apple article:
If you see No Service, Searching, or SOS on your iPhone or iPad
If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support
Error 7005 -> the iPhone must be connected to a Wi-Fi network.
See the following Apple articles:
Connect to Wi-Fi on your iPhone, iPad, or iPod touch
https://support.apple.com/en-us/HT202639
If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
https://support.apple.com/en-us/HT204051
Check the router settings -> Recommended settings for Wi-Fi routers and access points
https://support.apple.com/en-us/HT202068
If you need help with your Wi‑Fi password
https://support.apple.com/en-us/HT204070
(on iPhone with iOS 16.0.3)
If you need help with your Wi‑Fi password go to -> Settings -> Wi-Fi -> tap i in the circle -> scroll to & tap on Password -> tap Passcode.
-> Wi-Fi password visible.
See also -> If you can't connect to the App Store, iTunes Store, or other Apple services
If you can't connect to the App Store, iTunes Store, or other Apple services - Apple Support
-> If you tried all of the above steps and you still can’t connect, contact Apple Support.