Incorrect APN settings by default
Since I upgraded to an iPhone 13 Pro, 5G service is often unavailable and just Edge is working. I found out that the reason must be based on incorrect settings of APN etc. in the mobile data network.
During a trip in Japan I used an OCN data SIM, the corresponding APN settings were installed via a config profile. My mobile network settings in iOS since then are always incorrect, so I have to change them manually.
I deleted the OCN profile already years ago, but when I tap on "Reset Settings" in the mobile data section, they immediately show up again. Also "Reset Network Settings" or backing up in iCloud and restore doesn't fix the problem.
I found one thread here where somebody had the same issue, and it was suggested to build a custom config profile with the correct APN settings. I did so, but cannot install it, the phone says there is already a profile installed. But no one is listed. So it maybe wasn't uninstalled completely - is there any way to reset or overwrite the "default" settings, or any other ideas which could help not ending up in giving up my 14 years old backup?
Thanks :)
iPhone 13 Pro
