The added access points on the Huawei smartphone can be deleted at any time if incorrect data was entered or there was a network provider update.

Android 10 | EMUI 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Mobile network
Step 3:  Tap on  Mobile data
Step 4:  Tap on  Access Point Names (APNs)
Step 5:  Open the  menu 
Step 6:  Tap on  Delete APN
  1. Open the Settings
  2. Tap on Mobile network
  3. Tap on Mobile data
  4. Tap on Access Point Names (APNs)
  5. Open the menu 
  6. Tap on Delete APN

Huawei Instructions