Carrier settings updates let your carrier provider update carrier network and related settings to improve cellular network connectivity and performance or add support for features like Vo LTE or Wi-Fi Calling.
For more information on what is included in a carrier settings update, contact your carrier.
You can manually check for and install a carrier settings update using these steps: Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.
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But that doesn’t mean that the method is obsolete, as there are still many people out there with older i Phones.
And if you happen to be one of those people, you’ll be happy to know that Muscle Nerd has confirmed that Ultrasn0w was quietly updated this week to support i OS 6.1.
So if you’re on an eligible device and baseband, you can unlock on the new firmware…
Apple makes no representations regarding third-party website accuracy or reliability.
When a carrier setting update is available, you will be prompted to install it.
If your carrier releases a mandatory update, you'll see an OK button instead of an Update button to let you know that the update was downloaded and installed.