If your Huawei phone's control center (drop-down shortcut menu) is missing, it may be due to a system error, a setting change, or a software issue. Here are some ways to fix this issue:
Try restarting your phone first. This can fix many temporary software issues and glitches.
Notification bar settings: Check to see if you've inadvertently changed settings related to the notification bar or Control Center. Go to Settings >Notifications & Status Bar" or similar options to see if the settings are working properly.
Sometimes, bugs in the system can be solved with an update. Check and install any available system updates. Go to Settings > System >Software Update" and check if there is an update available.
If none of the above works, you can try resetting your phone's settings. This restores your phone's system to factory default, but it doesn't delete personal data. Go to "Settings" >System >Reset" and select "Reset All Settings".
Try restarting your phone in safe mode. Safe mode will disable all third-party apps, which can help diagnose if the issue is caused by a third-party app. After restarting your phone, press and hold the volume down button when the Huawei logo appears until you see the words "Safe Mode".
If the problem persists, we recommend that you contact Huawei customer service or go to an authorized repair center for professional diagnosis and assistance.
Before performing the troubleshooting steps of a reset or larger, make sure that you back up all your important data.
Usually, restarting your phone or checking the settings can fix these issues. If the problem persists, more in-depth technical support may be required.