P40E is not compatible with the honor headset.

The incompatibility between p40E and honor headphones may be the following problems.

1. Please check whether there is liquid or foreign matter in the earphone connector:

2. Please repeatedly check whether the earphone is faulty:

(1) If you are using Huawei headphones, it is recommended to plug them into other Huawei phones for testing.

If it doesn't work on other Huawei phones, it may be that the headphones are broken. It is recommended to replace the headphones.

(2) If you use a non-Huawei headset, there may be a problem that the headset is not compatible with the mobile phone. It is recommended to replace the original Huawei headphones and try to use them.