If you were trying to use *228 to fix a signal problem or activate a new phone, use these modern alternatives instead: 1. Automatic Activation for New Devices
If your phone simply says "No Service" or "SOS only": 228 not working us cellular
On older US Cellular devices, "Error 228" or "Code 228" was related to Over-the-Air Programming (OTASP) . This is the system used to activate service or update PRL (Preferred Roaming List). If you were trying to use *228 to
The code is a legacy feature used by carriers like UScellular to update roaming capabilities and activate older 3G CDMA devices. If you are finding that it is "not working," it is likely because this service has been largely phased out as UScellular transitions its network to modern technologies and integrates with T-Mobile . Why *228 is No Longer Working The code is a legacy feature used by
If you are trying to update your roaming capabilities: