2. After the 2.WIFI password is changed, the mobile phone cannot be connected. You need to manually update the password of WIFI. If the password of WIFI is entered incorrectly, you need to re-enter the password of WIFI manually.
3. Settings-General -WLAN- Select WIFI with abnormal connection-Click the icon of WiFi signal on the right to cancel saving, and then re-enter the password to reconnect, so that the mobile phone can get a new address and connect normally.
4. Re-enter the correct password and reconnect to the wireless network again.