Hello! It seems like you are encountering issues with band locking not working on your device. This can be frustrating, but let's try to troubleshoot this together.
Here are a few steps you can take to address the problem:
1. Check your Device Compatibility: Make sure that your device supports the band you are trying to lock onto. Some devices have limitations on which bands they can access.
2. Verify the Procedure: Double-check the steps you are following to lock the band. Ensure that you are entering the commands correctly and in the right sequence.
3. Restart your Device: Sometimes a simple restart can solve connectivity issues. Try rebooting your device and see if that helps.
4. Check for Updates: Ensure that your device's software is up to date. Sometimes, a software update can address bugs or issues related to network connectivity.
5. Contact Customer Support: If the issue persists, consider reaching out to your device manufacturer's customer support for further assistance. They may provide specific troubleshooting steps for your device.
If you provide more details about the specific procedures you are following and the error messages you are encountering, I can offer more tailored assistance. Let me know how it goes!