Unable to activate Imessage
Hi, I recently upgraded my iphone 7Plus (ios 13.7) to iphone 11 (ios15.4). Once I migrated my data I am unable to activate imessage from my iphone11. I tried activating imessage using different sim card in the phone 11, however for my current simcard it shows Activation unsuccessful.
Then I tried below possible methods to ractify this issue myself
>Reset the all settings
>Configure timezone and other related settings
> Finally endup in reseting the phone.
Even as a fresh phone it repeatedly showing me activation failed. Then I contacted my service provider, however they said theres no restriction in my account. Its quite frustrating and can someone recommend how to get this fixed.